Which Are the Best Primary Care Billing Companies in 2026?

The best primary care billing companies in 2026 are Medical Billers and Coders (MBC), Kareo/Tebra, Coronis Health, AdvancedMD RCM, and CareCloud. Among them, MBC ranks #1 for multi-site primary care groups. What sets the leaders apart? Specifically, they master four revenue areas: MDM-based E/M coding, Chronic Care Management (CPT 99490), Annual Wellness Visit (AWV) billing, and Transitional Care Management (CPT 99495/99496). In contrast, generic Medical Billing Services vendors often fail primary care groups in exactly these areas.

In fact, the stakes are measurable. According to MGMA benchmarking data, top-performing primary care practices collect 95%–97% of collectible revenue. However, the specialty median sits at only 87%–92%.

For example, at $2M in annual collections, that gap equals $60,000–$200,000 in lost revenue per billing cycle. In most cases, the main causes are E/M undercoding, missed CCM billing, and AWV miscoding. For a broader view across specialties, see Best Medical Billing Companies 2026: Compared & Reviewed.

Key Takeaways

• Top pick: MBC best fits multi-site groups, PE-backed networks, and complex Medicare Advantage panels.
• Collection benchmark: Top practices collect 95%–97% of collectible revenue, while the median is 87%–92%.
• Revenue at risk: As a result, at $2M in annual collections, that gap equals $60,000–$200,000 in lost revenue.
• Biggest leaks: Most often, these are E/M undercoding, missed CCM billing, AWV miscoding, and missed TCM claims.
• What to look for: Above all, choose MDM-trained coders, proactive CCM/PCM capture, and split/shared visit compliance under the 2023 CMS rule.
• Typical cost: On average, 4%–8% of monthly collections; larger groups often negotiate 4%–5.5%.

How We Evaluated Primary Care Billing Companies

• E/M Coding Accuracy Under AMA 2021 Guidelines: Above all, coders should apply MDM complexity. Legacy key-component logic, by contrast, downcodes complex multi-condition encounters.
• AWV and Preventive Service Billing: Coders must separate G0438/G0439, IPPE G0402, and sick-visit E/M codes. As a result, practices avoid cost-sharing rejections and lost dual-purpose visit revenue.
• CCM and PCM Billing: Vendors should capture CPT 99490, 99487, and 99424 for Medicare patients with two or more chronic conditions. Therefore, this must be a standard workflow, not an add-on.
• Split/Shared Visit Compliance: Equally important, accurate substantive portion determination under the 2023 CMS final rule for practices employing NPs and PAs.
• Transitional Care Management Billing: Finally, systematic TCM capture within the 30-day billing window for every qualifying post-discharge encounter.

Quick Comparison: Best Primary Care Billing Companies 2026

FPAR = First Pass Acceptance Rate on claim submission, not ultimate revenue recovery.

#1 — Medical Billers and Coders (MBC): Best for Multi-Site Primary Care Groups

MBC’s primary care billing practice rests on three pillars: MDM-based E/M coding, proactive CCM and AWV capture, and split/shared visit compliance. Together, they define Revenue Integrity in primary care. MBC’s coders also prevent systematic downcoding to 99213. Typically, this error happens when general billing staff apply default logic to complex chronic disease visits.

For example, consider a group that bills 4,000 complex encounters per cycle at 99213 instead of the documented 99215. As a result, that group loses about $300,000 per billing cycle. Worse, these claims are underpaid, never appealed, and hidden without a targeted AR Aging audit.

In addition, CCM eligibility is reviewed at charge entry, and AWV split visits are enforced at submission. Finally, TCM claims are filed within the 30-day window. MBC delivers a 97% clean claim rate and 30% AR reduction within 90 days. Clients also get a dedicated account manager per practice, a system-agnostic platform, and 25+ years of RCM Services experience. In addition, MBC’s Revenue Integrity Framework and payer variance detection protect net realized revenue growth across every billing cycle.

Best For: Multi-site primary care groups, PE-backed networks, and academic-affiliated practices with complex Medicare Advantage panels.

#2 — Kareo/Tebra

Kareo/Tebra provides functional billing for solo primary care physicians on its platform. However, it lacks the MDM and CCM workflows that multi-condition Medicare visits require.

#3 — Coronis Health

Coronis Health supports primary care billing within health system RCM structures. However, independent groups should confirm that assigned coders hold primary care certification, not just generalist training.

#4 — AdvancedMD RCM

AdvancedMD RCM integrates billing with its practice management platform. However, it includes no in-house medical coding. As a result, E/M level selection and AWV coding fall entirely on the practice’s internal staff.

#5 — CareCloud

CareCloud offers denial management dashboards and workflow visibility for mid-size practices. However, it is built for general physician revenue cycles. Therefore, it lacks the CCM focus and split/shared visit compliance that primary care requires.

What Does Primary Care Billing Cost?

Primary care Medical Billing Services companies typically charge 4%–8% of monthly collected revenue. In particular, multi-site groups with $500,000 or more in monthly collections generally negotiate rates in the 4%–5.5% range.

If you need CCM, AWV, and TCM billing as standard services, compare total cost of service, not the headline percentage. After all, recovered revenue often exceeds the cost difference between vendors. MBC’s fee structure is based on collected revenue with no setup fees. Plus, it covers all specialty-specific services from day one.

Four Primary Care Revenue Failure Points Every Administrator Should Monitor

• E/M Level Undercoding — Often, default 99213/99214 logic on complex visits creates accepted underpayments, not denials. Consequently, the loss stays hidden without a coding audit.
• Missed CCM Revenue — For instance, a practice with 200 qualifying Medicare patients can earn $148,000–$328,800 per cycle in CCM revenue. Yet most of it goes uncaptured with generalist vendors.
• AWV Miscoding — Commonly, billing a combined AWV and sick visit under one preventive code forfeits a separately payable E/M. This happens on every such visit.
• TCM Leakage — Unfortunately, every untracked post-discharge encounter forfeits $178–$244 in Medicare reimbursement; old AR recovery audits routinely surface 6–18 months of missed TCM claims.

Is Your Primary Care Group Collecting What It Is Owed?

MBC’s denial root-cause engineering and Complimentary 90-Day AR Diagnostic pinpoint the revenue gaps in your current workflow. Best of all, there is no cost and no commitment. MBC helps grow your EBITDA by closing CCM, AWV, and TCM revenue gaps that generic billing vendors consistently miss. Request Your Free Revenue Diagnostic today.

FAQs: Best Primary Care Billing Companies

Debbie Young

A Subject Matter Expert in healthcare billing operations with nearly 10 years of experience, sharing insights on claims processing, coding support, and revenue cycle optimization. Dedicated to educating healthcare professionals on compliance, accuracy, and strategies to improve billing performance.