Medical Billing Services in California
California is the largest healthcare market in America, and the most HMO-heavy. Between Medi-Cal, delegated IPAs, and two different Blues, CA billing punishes generalists. Our teams work this market every day.
Get a Free CA Revenue AnalysisPRMS Billing Solutions provides end-to-end billing and revenue cycle management for California providers, from Los Angeles and Orange County groups to Bay Area specialists and Central Valley clinics. California billing has a structure all its own: the nation's biggest Medicaid program (Medi-Cal), heavy HMO penetration with delegated IPA and medical-group risk, and two separate Blue plans. We manage eligibility, coding, claims, denials, AR, and credentialing across all of it.
Medicare billing in California
California Part B claims are processed by Noridian Healthcare Solutions, the Medicare Administrative Contractor for Jurisdiction E. We submit to Noridian daily and code against its local coverage determinations. California's Medicare Advantage penetration is among the highest in the country, with Kaiser, UnitedHealthcare, SCAN, Humana, and Alignment holding large shares, so we verify MA enrollment and any delegated-group routing before the claim ever goes out.
Medi-Cal billing
Medi-Cal covers roughly a third of Californians, more members than any other state Medicaid program. Original claims are generally due within 6 months of the month of service, with late submissions requiring documented justification. Most members are in managed-care plans that vary by county: L.A. Care and Health Net in Los Angeles, Inland Empire Health Plan (IEHP) in Riverside/San Bernardino, CalOptima in Orange County, Partnership and Kaiser in the north. County-correct plan identification is half the battle in Medi-Cal billing, and we do it at eligibility, before the visit.
Commercial payers we bill in California
California has two Blues: Blue Shield of California and Anthem Blue Cross, with different networks, edits, and appeal tracks, and confusing them causes real denials. Beyond the Blues we bill UnitedHealthcare, Aetna, Cigna, Health Net/Centene, and Kaiser (for the non-capitated services it reimburses). The defining CA wrinkle is delegation: HMO patients are often assigned to IPAs or medical groups that process their own claims. We identify the correct risk-bearing entity for every HMO claim so it lands where it will actually be paid.
Specialties we serve across California
We bill 25+ specialties across California, including the state's biggest outpatient segments: mental health, family medicine, dermatology, orthopedics, gastroenterology, telehealth (huge in CA), and urgent care.
Why California practices choose PRMS
The revenue leaks we fix most for California practices: HMO claims sent to the health plan when a delegated IPA held the risk, Medi-Cal claims filed after the 6-month window, and Anthem/Blue Shield mix-ups that end in avoidable denials. A billing team that knows CA's delegation map and county plan structure is the difference between clean payment and a write-off pile. Credentialing with Medi-Cal, both Blues, and every major CA payer is free for billing clients.
California medical billing FAQs
Do you handle Medi-Cal managed care billing?
Yes. We bill Medi-Cal fee-for-service and its county-based managed-care plans, L.A. Care, IEHP, CalOptima, Health Net, Partnership, and others, verifying each patient's county plan at eligibility so claims route correctly the first time.
Can you bill IPA and delegated medical-group claims?
Yes. Delegation is California's signature billing challenge: for HMO members, the IPA or medical group, not the health plan, often processes the claim. We identify the risk-bearing entity per patient and submit accordingly, which prevents the misrouted-claim denials common in CA.
Which Medicare contractor covers California?
Noridian Healthcare Solutions (Jurisdiction E) processes California Part B claims, and its LCDs are built into our scrubbing rules.
What is the difference between Anthem Blue Cross and Blue Shield of California?
They are two separate, competing companies: Anthem Blue Cross and Blue Shield of California each run their own networks, portals, and appeal processes. Claims and credentialing must be handled with each independently, and we manage both.
Related services
Explore our full medical billing & RCM services, denial management, and provider credentialing & payer enrollment (free for billing clients), or browse all 25+ specialties we bill and other states we serve.
See what your California practice is leaving on the table
Get a free, no-obligation revenue analysis. We measure your denial rate, days in AR, and recoverable revenue, specific to your payers.