What AI said about medical billing companies
in August 2026
The complete point-in-time record: the question asked, every verbatim answer from the 7 assistants that responded, and the ranking they produced. Captured August 1, 2026; immutable since.
In August 2026, athenahealth was the brand AI recommended most for medical billing companies, named by 6 of 8 assistants.
How this record was captured
Each assistant was asked the same buyer question, once (14 calls in total):
“What are the best medical billing companies? Recommend the top brands or products that people actually use.”
Captured August 1, 2026 · snapshot 1f2c2631-7ff2-405c-a9df-d72969c5add1 · region global
The August 2026 ranking
as captured: by AI Recommendation ScoreHow each AI ranked them
average position per assistant, August 2026Medical billing companies divides the assistants — 5 different top answers across the 6 we track, led by athenahealth (ChatGPT and Claude).
| Brand | ||||||
|---|---|---|---|---|---|---|
| #1 | #1 | #2 | #3 | #3 | #3 | |
| #2 | #3 | #4 | #2 | #11 | #5 | |
| #3 | #2 | #5 | #1 | #10 | – | |
| #7 | – | #1 | #10 | #18 | #12 | |
| – | #4 | #14 | #6 | #13 | #4 | |
| – | #5 | #3 | #5 | #12 | #6 |
Every captured answer
7 answers · verbatim
ChatGPTgpt-5.5-2026-04-23read
There isn’t one “best” medical billing company for everyone—the right choice depends on practice size, specialty, whether you need software only vs. full outsourced RCM, and whether you’re tied to an EHR. But if you want brands people actually use, these are the ones I’d shortlist first.
Best medical billing / RCM companies and products
| Best for | Recommended brands/products | Why they’re commonly shortlisted |
|---|---|---|
| Independent medical practices wanting all-in-one EHR + billing + RCM | athenahealth / athenaOne | My top general pick for independent practices that want integrated EHR, practice management, claims, billing workflows, and RCM support. athenahealth says athenaOne integrates EHR, practice & RCM, and patient engagement; it also won five 2026 Best in KLAS awards, including Overall Independent Physician Practice Suite. (athenahealth.com) |
| Small to mid-size practices that want strong PM/billing software and flexibility | AdvancedMD | Very common among private practices and billing companies. AdvancedMD reports usage by 65,000+ practitioners across 14,000 practices and 900 independent billing service companies. (businesswire.com) |
| Solo/small practices, behavioral health, therapy, private practice workflows | Tebra / Kareo | Popular with smaller independent practices because it bundles EHR, billing, payments, patient engagement, and practice growth tools. Tebra says it supports 142,000+ providers and 125M+ patients. (tebra.com) |
| Ambulatory practices that want a widely used EHR with integrated RCM | eClinicalWorks | Good shortlist candidate if you want a large, established ambulatory EHR/PM platform. eClinicalWorks says 180,000+ U.S. physicians and 850,000+ medical professionals globally use its software, including RCM tools. (eclinicalworks.com) |
| Multi-specialty or growing groups | NextGen Healthcare | Good fit for practices that want configurable practice management, billing/coding/payment management, and specialty workflows. NextGen says its Enterprise product supports 30+ specialties, while NextGen Office targets smaller independent practices and includes claims clearinghouse functionality. (nextgen.com) |
| Hospitals / health systems needing enterprise end-to-end RCM outsourcing | Ensemble Health Partners | One of the strongest enterprise RCM outsourcing picks. Ensemble says it earned 2026 Best in KLAS for End-to-End Revenue Cycle Outsourcing with a 96.9/100 score and has won that category six times. (ensemblehp.com) |
| Large health systems and physician groups needing enterprise RCM services | R1 RCM | Major enterprise RCM vendor for hospitals, health systems, and physician groups. R1 announced multiple 2026 Best in KLAS awards, and KLAS specifically names R1 among end-to-end RCM outsourcing vendors evaluated alongside Ensemble, Guidehouse, and Optum. (r1rcm.com) |
| EHR-agnostic ambulatory RCM outsourcing | R1 RCM, Omega Healthcare, IKS Health | If you already have an EHR and want an outside RCM partner, look at EHR-agnostic vendors. KLAS’s 2025 ambulatory RCM ranking shows Omega Healthcare and IKS Health among high-scoring vendors in this category. (klasresearch.com) |
| Labs, radiology, pathology, diagnostics, ancillary providers | XiFin | Strong specialty pick for lab/radiology/ancillary billing. XiFin said it was ranked #1 client-rated RCM partner for cross-ancillary and outpatient laboratory services in Black Book’s 2025 RCM Outsourcing Survey. (xifin.com) |
| Claims clearinghouse / payment infrastructure, not full billing | Waystar, Quadax, Availity | These are not always “billing companies” in the full-service sense, but they’re widely used for claims, clearinghouse, patient access, payments, and RCM tech. KLAS/Becker’s listed Quadax as 2026 Best in KLAS for claims management & clearinghouse and Waystar for patient access; Waystar also reported processing 7.5B+ healthcare payment transactions annually. (beckershospitalreview.com) |
My practical shortlist
If you’re asking, “Who should I actually call first?” I’d break it down like this:
For a small private practice
Start with: Tebra, AdvancedMD, athenahealth
- Choose Tebra if you’re small, want simplicity, and want EHR + billing + patient tools in one place.
- Choose AdvancedMD if you want a more billing-company-friendly PM/RCM platform with lots of outside billers familiar with it.
- Choose athenahealth if you want stronger embedded RCM support and are comfortable with a more enterprise-style platform.
For a 5–75 provider independent group
Start with: athenahealth, eClinicalWorks, NextGen, AdvancedMD
- athenahealth is often the best first call for independent physician groups that want a full suite.
- eClinicalWorks is worth considering if you want a widely adopted ambulatory EHR/RCM platform.
- NextGen is worth considering for multi-specialty groups or more complex workflows.
For a hospital or health system
Start with: Epic Resolute + Ensemble / R1 / Optum / Guidehouse
- Epic Resolute is the billing/revenue cycle platform used inside Epic environments; Epic’s documentation describes Hospital Billing and Professional Billing applications. (epicsupport.sites.uiowa.edu)
- For outsourced operations, Ensemble and R1 are the names I’d look at first.
For lab, radiology, pathology, diagnostics
Start with: XiFin
This is one of the clearest specialty-category picks.
My top 5 overall
If I had to name the most useful “default” shortlist:
- athenahealth / athenaOne — best overall for independent practices that want integrated EHR + billing + RCM.
- AdvancedMD — best flexible billing/PM platform for private practices and third-party billers.
- Tebra / Kareo — best for solo and small independent practices.
- eClinicalWorks — best widely used ambulatory EHR + billing option.
- Ensemble Health Partners — best enterprise/hospital RCM outsourcing pick.
What to ask before signing
Ask every vendor for:
- 3 references in your exact specialty and practice size
- Their clean claim rate, denial rate, days in A/R, and net collection rate
- Whether they handle eligibility, prior auth, coding, charge entry, claim submission, denials, payment posting, patient statements, collections
- Whether you can leave with your claim history, ERA/EOB data, reports, and patient balances
- Whether pricing is percentage of collections, per-provider, per-claim, or hybrid
- Contract term, termination fee, implementation cost, clearinghouse fees, payment processing fees, and data export fees
If you tell me your specialty, number of providers, EHR, monthly claim volume, and whether you want software or full outsourcing, I can narrow this to the best 3–5 vendors for your exact situation.
Claudeclaude-sonnet-5read
Medical billing services generally fall into two categories: full-service RCM (revenue cycle management) companies that handle billing as a service, and software platforms (EHR/practice management systems) that include billing tools. Here's a rundown of the names that come up most consistently across multiple independent industry roundups in 2026:
Software/Platform-Based Billing (good for practices wanting more in-house control)
- Athenahealth – It offers a variety of revenue cycle management (RCM) and billing solutions, including medical claim processing, patient billing, medical coding, insurance verification, billing customization, and denial management. It's frequently rated best for large groups, winning on its enterprise network for large facilities.
- Tebra (formerly Kareo) – Often cited as best for marketing, winning on patient acquisition tools.
- AdvancedMD – Frequently recommended for complex suites, winning on multi-specialty workflows.
- DrChrono – Popular pick for iPad users, winning on its mobile-first EHR.
- CareCloud – Another major all-in-one platform commonly compared alongside the above for practices wanting integrated billing + EHR.
Dedicated Billing/Outsourcing Companies (good for practices wanting to fully hand off billing)
- Medical Billers and Coders (MBC) – Ranks as a top choice for one reason generic RCM vendors cannot replicate: 25+ years of dedicated multi-specialty revenue cycle infrastructure, operating dedicated Centers of Excellence across 40+ medical specialties.
- Transcure – Has more than 1,100 certified medical billers and coders working across more than 40 specialties, and is a dedicated billing company rather than a software platform with a billing add-on. It has leaned into AI agents recently, with named tools handling real-time eligibility verification and denial detection, and reports a first-pass clean claim rate above 98%, showing up on Capterra and Trustpilot with a real, mixed set of independent reviews.
- CureMD – Integrates its medical billing services directly with its EHR and practice management platform, creating a seamless workflow, and provides specialty-focused billing expertise combined with advanced analytics.
- MediBillMD – Provides customized RCM services emphasizing coding precision, rejection handling, AR monitoring, and financial reporting, serving practices seeking personalized billing support.
- Practolytics and ReveleMD – also show up repeatedly on multiple 2026 "top 10" lists as full-service billing/RCM providers.
A word of caution
It's worth knowing that many "Top Medical Billing" lists found online misrepresent their rankings, including large software companies looking to sell a monthly subscription instead of service-based partners focused on lowering denials. Several of the sources above are published by the billing companies themselves (or close partners), so treat "#1" rankings skeptically.
How to actually decide
Regardless of brand, the current thinking is that pract
Perplexitysonarread
If you want the medical billing companies people actually use, the most commonly surfaced names across 2026 comparison lists are R1 RCM, athenahealth, CareCloud, AdvancedMD, Tebra (Kareo), CureMD, eClinicalWorks RCM, and Transcure. The best choice depends on practice size: R1 RCM is consistently positioned for large hospitals and health systems, while Tebra, CareCloud, and AdvancedMD show up more often for small-to-mid-size practices.
| Company | Best fit | Why it’s commonly recommended |
|---|---|---|
| R1 RCM | Large hospitals, health systems | Frequently listed for enterprise-scale RCM and hospital-focused billing. |
| athenahealth | Large groups, hospital systems, new practices | Often recommended for interoperability, reporting, and broad enterprise use. |
| CareCloud | Mid-size practices | Common pick for scalable RCM, analytics, and integrated billing. |
| AdvancedMD | Complex multi-specialty groups | Repeatedly listed for customizable workflows and end-to-end billing. |
| Tebra (Kareo) | Small and solo practices | Frequently recommended for ease of use and independent clinics. |
| CureMD | Budget-conscious practices | Appears often in “top companies” lists for broader specialty coverage and cost sensitivity. |
| eClinicalWorks RCM | Existing eCW users | Best when you already use the eCW platform. |
| Transcure | Specialty-focused outsourcing | Often listed for AI-forward billing and certified billing teams. |
A practical short list by real-world use would be: R1 RCM for enterprise hospitals, athenahealth for large multi-site organizations, CareCloud for growing practices, AdvancedMD for complex workflows, and Tebra for smaller clinics.
If you mean software platforms rather than outsourced billing services, the names that show up most are PracticeSuite, MicroMD, Tebra, WebPT, CollaborateMD, Claimocity, DrChrono, and CareCloud. Among those, PracticeSuite is positioned as an all-in-one billing solution, Tebra for patient engagement, and CareCloud for financial dashboards and revenue tracking.
If you want, I can narrow this to:
- best for small practices
- best for hospitals/health systems
- best outsourced billing service
- best billing software
- best by specialty
DeepSeekdeepseek-v4-flashread
There’s no single “best” medical billing company — the right choice depends on your practice size, specialty, budget, and whether you want software (bill in-house) or outsourced services (they manage your claims and denials for you).
Here are the top medical billing brands and products that are actually widely used:
🩺 Best Medical Billing Software (In-House)
These platforms let your staff submit claims, manage payments, and track denials.
| Company | Best For | Notes |
|---|---|---|
| Tebra (formerly Kareo) | Small and independent practices | All-in-one EHR + billing, intuitive, very popular with solo/small practices. |
| AdvancedMD | Small to mid-size practices | Strong billing + EHR combo, good reporting and patient payment tools. |
| athenahealth (athenaCollector) | Small to medium practices | Cloud-based, with a built-in clearinghouse and optional revenue cycle management services. |
| NextGen Office | Medium and large practices | Robust EHR + billing, better for specialties with complex billing needs. |
| CareCloud | Medium practices | Full suite with practice management, automation, and RCM options. |
| DrChrono | Practices that use iPads | Great mobile interface, includes billing and scheduling. |
| Medical Mime / Medisoft | Behavioral health and older practices | Affordable legacy option, but dated. |
| Epic Resolute | Large hospitals and health systems | Enterprise-grade billing used by massive healthcare organizations, not practical for small clinics. |
🧑⚕️ Best Outsourced Medical Billing Services
If you don’t want to manage billing in-house, these companies handle everything from claim submission to denial appeals.
| Company | Best For | Notes |
|---|---|---|
| R1 RCM | Large hospitals and health systems | Major player in end-to-end revenue cycle management. |
| Conifer Health Solutions | Hospitals and physician groups | Strong in patient engagement and RCM. |
| Waystar | Practices of all sizes | Known for claims software/clearinghouse, plus full RCM services. |
| Experian Health | Large providers | Focus on claims, payment, and patient access. |
| Optum360 (formerly Change Healthcare) | Hospitals and large practices | Owned by UnitedHealth, huge infrastructure and analytics. |
| GeBBS Healthcare | Large practices and hospitals | Offshore-friendly RCM with aggressive denial management. |
| CorroHealth | Complex claims / specialty hospitals | Strong in coding, CDI, and physician advisor services. |
| LogixHealth | Emergency medicine & hospitalists | Specialty-focused billing for high-volume claims. |
✅ How to Choose
- Small practice? → Try Tebra/Kareo, AdvancedMD, or athenahealth.
- Large hospital? → Look at Epic, R1 RCM, Conifer.
- Specialty billing? → Search for niche companies (e.g., pathology, anesthesia, dermatology) — specialized firms often outperform generalists.
- Outsourcing? → Consider a company that charges a percentage of collections (typically 3–8%) vs. a flat monthly rate.
The best move is to ask colleagues in your specialty what they use, then take advantage of free demos and trial periods. Most companies will walk you through a “mock billing” scenario so you can see how they handle real claims.
Grokgrok-4.5read
There is no single “best” medical billing company—it depends on practice size (solo/small vs. multi-specialty/group vs. hospital/health system), specialty, whether you want software only, full outsourcing (RCM services), or a hybrid, budget, EHR integration needs, and priorities like ease of use, customization, denial prevention, or analytics.
Medical billing solutions fall into two main categories that people actually use:
- Integrated EHR/practice management (PM) + billing platforms (most common for independent and ambulatory practices; often include optional RCM services).
- Full-service outsourced RCM/billing companies (handle claims, coding, denials, AR, etc., sometimes EHR-agnostic or tied to a platform).
Most Widely Used Platforms (Based on Market Presence and Adoption)
Ambulatory EHR market share is a strong proxy for real-world billing usage, since billing is tightly integrated. Approximate shares (as of recent Definitive Healthcare data) include:
- Epic (~19.5% ambulatory share): Dominant overall (especially hospitals and large systems with ambulatory arms). Robust end-to-end RCM tools, strong interoperability, and advanced automation. Best for larger organizations; complex and expensive for small independents.
- eClinicalWorks (eCW) (~11.9%): One of the largest installed bases in ambulatory settings (hundreds of thousands of providers/facilities historically reported). Comprehensive EHR + PM + billing/RCM. Affordable relative to peers and scales across specialties; interface and support can feel dated or variable for some users.
- athenahealth (athenaOne) (~6.9%): Cloud-based with strong network effects—learns from a large provider base to improve claim accuracy and reduce denials (often cited low rejection rates). Excellent reporting, interoperability, and RCM services. Popular for multi-specialty groups and clinics; can be pricier and have a learning curve. Frequently tops “best of” lists.
- NextGen Healthcare (~4.2%): Strong specialty focus and integrated billing. Solid for mid-sized practices needing specialty workflows.
- Others with notable traction: ModMed (specialty-focused, e.g., derm), Oracle Health (Cerner), Practice Fusion, Greenway, and Veradigm.
Other highly used/popular platforms people recommend and adopt:
- Tebra (formerly Kareo + PatientPop): Extremely popular with independent/solo and small practices (reports of 140,000–165,000+ providers). User-friendly, all-in-one EHR/PM/billing + patient acquisition/marketing tools, AI features (e.g., note assist). Good free trials/affordability for small setups; strong for growth-focused clinics. Often praised for ease of use.
- AdvancedMD: Serves ~13,000–14,000 practices and 65,000 practitioners (plus many billing companies). Highly customizable workflows, strong analytics/reporting, multi-location/multi-specialty support, and solid first-pass claim rates (often ~95%). Excellent for growing or complex independent practices and those wanting deep control; steeper learning curve.
- CareCloud: Frequently ranked high for scalable RCM + billing, analytics, claim scrubbing, and mid-size practices. Hybrid software + services model with good first-pass/denial metrics in reviews.
- DrChrono: Mobile-first (strong iOS), cloud-based EHR + billing. Popular with smaller or tech-forward practices.
- Others commonly mentioned: CureMD (integrated, budget-friendly options), PracticeSuite (affordable/end-to-end), CollaborateMD, and specialty tools like WebPT (rehab/PT).
These platforms power day-to-day billing for the majority of practices. Many billers and practices also use clearinghouses/claims tools like Waystar alongside them.
Top Full-Service Medical Billing / RCM Companies
These handle outsourcing (coding, submission, denial management, collections). Enterprise players dominate large orgs; the market for independents is fragmented with many specialty/regional firms. Common top mentions in 2024–2026 roundups:
- R1 RCM: Best for large hospitals/health systems (works with many top systems; high transaction volume + AI). Scale and automation strengths; less ideal (and potentially overkill/expensive) for small practices.
- athenahealth and CareCloud RCM services: Leverage their platforms’ intelligence and tools. Strong denial prevention and reporting.
- AdvancedMD, Tebra, eClinicalWorks, CureMD RCM offerings: Integrated with their software for seamless data flow.
- Specialized/enterprise multi-specialty: Medical Billers and Coders (MBC) often highlighted for deep specialty coding expertise (40+ specialties), high net collection rates (claimed 94–98%), and enterprise/PE-backed groups.
- Others frequently listed: Transcure (AI-focused), MediBillMD or similar personalized small-practice services, NextGen, and various performance-based firms. KLAS rankings for ambulatory RCM services and end-to-end outsourcing highlight specialists like CompuGroup Medical (ARIA) in certain categories and winners varying by year for pure outsourcing (e.g., high scores for some like Ensemble in past data).
Smaller or specialty practices often use boutique billers familiar with their EHR (or EHR-agnostic ones) or the platform’s own services. Pricing is typically a percentage of collections (commonly 4–9%+, sometimes with minimums or hybrids) or performance-based.
Quick Recommendations by Practice Type
- Solo/small independent practices: Tebra (ease + growth tools), DrChrono (mobile), PracticeSuite, or simple/affordable RCM partners. Prioritize usability and low overhead.
- Growing/mid-size multi-specialty: AdvancedMD, CareCloud, athenahealth, or CureMD. Look for customization, analytics, and solid first-pass rates.
- Larger groups or those wanting network intelligence: athenahealth or eClinicalWorks.
- Hospital/health system or enterprise: Epic ecosystem, R1 RCM, or athenahealth at scale.
- Specialty-specific: Check ModMed, WebPT, or billers with dedicated coders in your area (e.g., ortho, behavioral, wound care).
- Budget-conscious or wanting outsourcing without full platform switch: EHR-agnostic or flexible RCM firms (evaluate net collection rate targets of 94%+, denial rates <5%, and days in AR).
How to Choose and What People Actually Evaluate
- Key metrics: First-pass acceptance/clean claim rate, net collection rate, denial rate + recovery, days in A/R, transparency of reporting/dashboards.
- Other factors: EHR integration (critical—avoid double entry), specialty coding expertise, AI/automation for eligibility/claim scrubbing/denials, support quality/US-based vs. offshore, contract flexibility (avoid long lock-ins), compliance (HIPAA, etc.), and total cost of ownership.
- Real-user signals: Check recent G2/Capterra/Trustpilot/KLAS reviews for your specialty/size (ratings often 3.5–4.5+ for leaders; look at volume of reviews). Reddit and physician forums frequently discuss Tebra/Kareo, Athena, AdvancedMD, and eCW with mixed but volume-heavy feedback on support and ROI.
- Process: Request demos, references from similar practices, AR analysis (many offer free 90-day reviews), and pilot if possible. Verify current performance claims.
Sources for rankings and usage include industry roundups (CareCloud, MBC, etc.), review aggregators (G2/Capterra), market share data (Definitive Healthcare), and company-reported adoption figures. Rankings shift and many “top 10” lists are vendor-influenced, so prioritize verified user feedback and fit over any single list.
Start with your current EHR/volume/specialty pain points (e.g., high denials? growth goals? staffing?). Most top options offer demos or consultations. For the latest reviews or specialty fits, check G2, Capterra, or KLAS directly.
Copilotbing_copilotread
Top medical billing companies like Practolytics, MediBillMD, athenahealth, DrChrono, AdvancedMD, CareCloud, Kareo/Tebra, and CureMD consistently deliver reliable, technology-driven billing solutions for practices of all sizes.
Leading Medical Billing Companies
- Practolytics
Practolytics offers end-to-end revenue cycle management (RCM) services tailored for over 28 specialties. With 20+ years of experience, it supports 1,400+ providers across 31 states. Strengths include 100% HIPAA compliance, real-time analytics, and historically reducing accounts receivable (A/R) by 30% while achieving collection rates up to 90% .
- MediBillMD
MediBillMD is ideal for small and large practices, providing medical coding, denial management, credentialing, and A/R recovery. It features a 98% clean claims rate, a 97% first-pass ratio, and typically reduces A/R to under 30 days while improving revenue by 10–15% +1 .
- athenahealth
Founded in 1997, athenahealth offers cloud-based RCM solutions with EHR integration, including billing automation, claims processing, and insurance verification. It serves hospitals, federally qualified health centers, and large practices. Key advantages are customizable billing, AI-driven analytics, and support for diverse healthcare providers +1 .
- DrChrono
DrChrono specializes in tech-driven billing for telemedicine and EHR-integrated practices. Its platform supports claims submission, coding, and payment posting, optimized particularly for telehealth providers. It is flexible, user-friendly, and analytics-focused .
- AdvancedMD
AdvancedMD integrates EHR, practice management, and billing solutions, offering claims submission, revenue cycle analysis, and payment posting. Strengths include high reimbursement rates, customizable bundles, and intuitive interface suitable for diagnostic centers and ambulatory surgery centers +1 .
- CareCloud
CareCloud provides comprehensive RCM and analytics solutions, along with telehealth integration. Features include real-time dashboards, denial management, and automated billing workflows, reducing A/R by up to 30% +1 .
- Kareo/Tebra
Originally Kareo, now part of Tebra, delivers all-in-one billing, practice management, and patient engagement. It focuses on efficiency for solo and small practices, offering automated workflows, transparent billing portals, and insurance verification tools +1 .
- CureMD
CureMD delivers integrated RCM solutions, AI-powered claims management, and patient engagement services, improving collection rates and minimizing errors. It is suitable for private clinics, billing services, and medium-sized practices +1 .
Additional Notable Providers
Other highly regarded firms that cater to specialized needs or offer cost-effective solutions include NextGen Healthcare (telehealth-focused), Transcure, OutsourceRCM, and R1 RCM, which are recognized for high client satisfaction, compliance, and technology-driven solutions +1 .
How to Choose the Right Billing Company
Assess Practice Needs: Specialty-specific requirements, number of claims, and size of practice. Verify Credentials & Compliance: HIPAA adherence, CPC certification, and industry certifications like ISO or ASRM. Technology & Integration: Cloud platforms, EHR integration, AI analytics, and reporting capabilities. Client Feedback: Testimonials, case studies, and references from similar practices. Pricing & ROI: Compare cost-effectiveness versus expected improvements in revenue and claim processing efficiency.
Partnering with a trusted billing company can streamline claims, reduce errors, improve reimbursements, and allow healthcare providers to focus on patient care while maximizing practice revenue +2 .
Google AIgoogle_aioread
Answers are stored verbatim at capture and never edited. They are the assistants’ words, not CiteHawk’s, published as the primary source behind this record.
This is an immutable monthly record of the CiteHawk AI Index. Cite it as “CiteHawk AI Index, August 2026 · medical billing companies” with the URL of this page. The live ranking shows the current month; the methodology explains exactly how scores are computed.