Nephrology Billing Services in California

California's nephrology practices face unique billing challenges shaped by Blue Shield of California / Anthem's commercial rules, Medi-Cal requirements, and Noridian Healthcare Solutions (Jurisdiction E) Medicare policies. Our AAPC-certified coders specialize in both CA payer rules and nephrology coding complexity.

AAPC Certified
CA Payer Expert
Nephrology Specialists
2.49% Rate
Last reviewed: May 2026Reviewed by the Go Medical Billing Editorial TeamAAPC-certified coders
110,000+CA Physicians
2.49%Starting Rate
5Medicaid MCOs
98%+Clean Claim Rate

Why California Nephrology Practices Need Specialized Billing

California's healthcare market includes 110,000+ physicians, and nephrology practices here face a payer market dominated by Blue Shield of California / Anthem on the commercial side and Medi-Cal on the public payer side. Medicare claims are processed through Noridian Healthcare Solutions (Jurisdiction E), which applies its own Local Coverage Determinations that directly affect nephrology procedure coverage and medical necessity requirements. Generic billing teams without CA specific knowledge leave revenue on the table.

Nephrology billing itself is complex. Nephrology uses monthly capitated ESRD codes (90960-90966) based on age and visit frequency, plus hemodialysis procedure codes (90935-90937) and office-based CKD management. The monthly capitation model is unlike any other specialty's billing structure. When you combine this coding complexity with California's specific payer rules, authorization requirements, and 5 Medi-Cal managed care plans that each have their own billing rules, you need a team that understands both dimensions. Go Medical Billing provides that expertise at 2.49% of collections, serving nephrology practices from Los Angeles to Oakland and across California.

2026 California Medicare Allowables for Nephrology CPT Codes

These are the 2026 Medicare allowable amounts for nephrology CPT codes in California, processed under Noridian Healthcare Solutions (Jurisdiction E). Allowables are locality-adjusted, so CArates differ from other states — the highest-value nephrology code below pays $1,251.62 non-facility here. Compare any code across states with our Medicare fee calculator by state.

Code
Description
Non-Facility
Facility
Hemodialysis with single evaluation
$63.92
$63.92
Hemodialysis with repeated evaluation
$91.81
$91.81
Dialysis other than hemodialysis
$81.88
$81.88
ESRD services, monthly comprehensive, age 0-1
$1,251.62
$1,251.62
ESRD services, monthly focused, age 12-19
$398.52
$398.52
Vascular catheter insertion for hemodialysis
$109.81
$109.81
Diagnostic angiography of dialysis fistula
$785.12
$147.22
Established patient office visit, low MDM
$104.31
$59.65
Established patient office visit, moderate MDM
$148.01
$87.54

Source: 2026 Medicare Physician Fee Schedule, CA locality (Noridian Healthcare Solutions (Jurisdiction E)). Commercial Blue Shield of California / Anthem rates typically run above these benchmarks; Medi-Cal rates run below. Figures for reference, not a guarantee of payment.

The California Market Context for Nephrology Practices

California has more physicians than any other state and the most complex healthcare regulatory environment in the country. The state's Medi-Cal program covers over 15 million residents through a managed care system that varies by county, creating a patchwork of billing rules that differs from LA to San Francisco to Sacramento. Kaiser Permanente's dominant HMO presence adds another layer of complexity, as does the Knox-Keene Act which regulates managed care plans differently than federal law. AB 72's balance billing protections go further than the federal No Surprises Act. California also has the highest cost of living for in-house billing staff, making outsourcing at 2.49% an even more significant cost advantage.

California-specific factors that shape nephrology reimbursement: Medi-Cal expanded to cover undocumented adults of all ages effective January 2024, making California the first state with full Medi-Cal eligibility regardless of immigration status. The expansion added roughly 700,000 newly eligible adults aged 26 to 49 to the rolls.; California is one of the only states with a dual managed care regulatory structure. The Department of Managed Health Care (DMHC) oversees HMOs and most Medi-Cal plans, while the California Department of Insurance (CDI) regulates indemnity and PPO products. The two departments have different rules, complaint paths, and provider remedies.; Medi-Cal is the largest Medicaid program in the country by enrollment, covering more than 15 million Californians, which is roughly one in three state residents.. Our CA coders build these into every nephrologyclaim — see how this works alongside our California medical billing and nephrology billing teams.

California Payer Challenges for Nephrology

Every CA payer has specific rules for nephrology claims. Here's how we navigate them.

Blue Shield of California / Anthem Nephrology Claims

Blue Shield of California / Anthem processes the largest share of California commercial nephrology claims. We know their CA specific fee schedules, prior authorization requirements for nephrology procedures, and their appeal timelines when claims are denied. 90960-90966 are based on patient age and number of physician contacts per month.

Medi-Cal Nephrology Billing

Medi-Cal routes nephrology patients through 5 managed care plans: LA Care, Health Net, Molina, and 2 more. Each MCO has its own nephrology authorization and billing rules that we manage.

Medicare (Noridian Healthcare Solutions (Jurisdiction E)) Nephrology Coverage

Noridian Healthcare Solutions (Jurisdiction E) processes Medicare nephrology claims in California with its own Local Coverage Determinations. We navigate Noridian Healthcare Solutions (Jurisdiction E)'s policies around dialysis facility coordination to prevent medical necessity denials.

Denial Prevention for California Nephrology

Common nephrology denials in California include 90960-90966 are based on patient age and number of physician contacts per month and billing must coordinate between nephrologist professional fees and facility charges. Our team catches these issues before submission and appeals aggressively with CA payer-specific documentation when denials occur.

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What We Handle for California Nephrology Practices

Monthly ESRD capitated billing
Hemodialysis procedure coding
CKD management billing
Transplant evaluation and management
Vascular access procedure coding
Peritoneal dialysis billing

California Nephrology Billing Cost Comparison

Hiring an in-house biller with nephrology expertise in California costs $50K-$70K annually in salary alone. Add benefits, software, clearinghouse fees, and office space, and the true cost is even higher. At 2.49% of collections, Go Medical Billing provides an entire team of AAPC-certified nephrology coders and CA payer specialists for a fraction of that cost.

$50K-$70K

In-House Biller Salary

+ benefits, software, space

2.49%

Go Medical Billing Rate

Full team, all services included

60-80%

Typical Cost Reduction

With better results

Frequently Asked Questions

All major CA payers: Blue Shield of California / Anthem, Kaiser, Health Net, Aetna, Cigna, UHC, Medi-Cal (including LA Care, Health Net, Molina), and Medicare through Noridian Healthcare Solutions (Jurisdiction E). If a payer accepts nephrology patients in California, we submit and follow-up on claims with them.
The most frequent nephrology denials we see from CA payers include 90960-90966 are based on patient age and number of physician contacts per month, billing must coordinate between nephrologist professional fees and facility charges, proper staging documentation affects code selection and payer coverage. Our team catches these before submission by applying both nephrology coding expertise and CA payer-specific rules to every claim.
Medi-Cal routes nephrology patients through 5 managed care plans: LA Care, Health Net, Molina, Anthem, CalOptima. Each MCO has its own nephrology authorization requirements, fee schedules, and billing rules. We credential and bill with all of them so your nephrology practice gets paid correctly.
Most CA nephrology practices are fully transitioned within two to three weeks. We connect to your EHR, learn your nephrology workflows, and start submitting claims to Blue Shield of California / Anthem, Medi-Cal, Medicare, and all your CA payers with no downtime.

Fix Your California Nephrology Billing

Call 888-701-6090 for a free billing assessment specific to your CA nephrology practice. We'll show you where revenue is leaking and how to fix it.