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OB-GYN Billing · California

OB-GYN billing and revenue cycle for California providers.

California operates 2,441 OB-GYN billing organizations registered in NPPES, representing 9.9 percent of the U.S. OB-GYN billing footprint. California is one of the largest OB-GYN billing market. OB-GYN revenue cycle blends global OB package management, delivery coding, well-woman preventive billing, LARC + contraception billing, and pelvic surgery coding. California OB-GYN practices need coders with depth across all of these.

2,441
NPPES orgs in CA
9.9%
of US market
#1
national rank
90%+
Realization target
Free CA OB-GYN billing audit →OB-GYN services
Last updated: May 31, 2026 · Authored by ASP-RCM Solutions Team

What good OB-GYN billing execution looks like for California providers.

The California OB-GYN billing market has its own quirks. Here is the operating discipline we install on every California engagement.

  1. Global OB package billing and antepartum visit trackingGlobal OB package (59400, 59510, 59610, 59618) bundles antepartum, delivery, and postpartum care. California OB-GYN practices need accurate antepartum visit tracking to determine global vs separate billing.
  2. Newborn delivery coding for vaginal vs C-sectionVaginal delivery (59409 with global, 59410 with postpartum) vs C-section (59514, 59515) carry distinct codes. Twin and complex deliveries add code complexity.
  3. Ultrasound and antepartum diagnostic billingOB ultrasound (76801-76817) and BPP, NST, and antepartum surveillance billing require precise study-type coding and appropriate modifier use.
  4. Annual well-woman visit + preventive codingAnnual well-woman visit (99396-99397, plus G0101 / Q0091 for Medicare screening pap) bills distinctly from problem-oriented visits. Modifier 25 needed when same-day E/M occurs.
  5. LARC and contraception codingIUD insertion (58300), removal (58301), and Nexplanon (11981-11983) plus device J-codes (J7297, J7298, J7300, J7301) require accurate placement and inventory billing.
  6. Pelvic surgery and laparoscopic procedure codingHysterectomy, myomectomy, oophorectomy, and pelvic floor procedures carry complex code stacks with bundling rules. California OB-GYN practices doing surgery need specialty coders.

More West state guides.

Sister West state pages for OB-GYN billing.

AK→ AZ→ CO→ HI→

FAQ: OB-GYN billing in California.

How many OB-GYN billing providers operate in California?

NPPES lists 2,441 OB-GYN billing organizations in California, representing 9.9% of the U.S. footprint. Top concentrations are in Los Angeles (173), San Diego (95), San Francisco (64).

Does Medi-Cal cover OB-GYN billing services?

Yes. Medi-Cal covers OB-GYN billing services for eligible beneficiaries, with plan-specific authorization rules and rate structures that vary by year.

What commercial payers cover OB-GYN billing in California?

All major national commercial payers cover OB-GYN billing in California, including UnitedHealthcare/Optum, Aetna, Cigna/Evernorth, the dominant California Blue Cross Blue Shield plan, and (where active) Humana.

Does ASP-RCM serve OB-GYN billing providers in California?

Yes. ASP-RCM Solutions provides OB-GYN and women's health billing services for providers in California and across all 50 states. Senior partners on every account. Request a free 30-day audit.

How do I get started?

Request a free 30-day RCM audit. We assess your current state, identify revenue leakage, and produce a written prioritized recommendations list.

Free 30-day audit for California OB-GYN billing providers.

Send us your last 90 days of claim data. We will send back a 4-page audit with prioritized recommendations and dollar estimates.

Request audit →Talk to a senior partner