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OB-GYN Billing · Illinois

OB-GYN billing and revenue cycle for Illinois providers.

Illinois operates 869 OB-GYN billing organizations registered in NPPES, representing 3.5 percent of the U.S. OB-GYN billing footprint. Illinois is a major 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. Illinois OB-GYN practices need coders with depth across all of these.

869
NPPES orgs in IL
3.5%
of US market
#8
national rank
90%+
Realization target
Free IL 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 Illinois providers.

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

  1. Global OB package billing and antepartum visit trackingGlobal OB package (59400, 59510, 59610, 59618) bundles antepartum, delivery, and postpartum care. Illinois 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. Illinois OB-GYN practices doing surgery need specialty coders.

More Midwest state guides.

Sister Midwest state pages for OB-GYN billing.

IN→ IA→ KS→ MI→

FAQ: OB-GYN billing in Illinois.

How many OB-GYN billing providers operate in Illinois?

NPPES lists 869 OB-GYN billing organizations in Illinois, representing 3.5% of the U.S. footprint. Top concentrations are in Chicago (224), Peoria (32), Hoffman Estates (20).

Does HealthChoice Illinois cover OB-GYN billing services?

Yes. HealthChoice Illinois 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 Illinois?

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

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

Yes. ASP-RCM Solutions provides OB-GYN and women's health billing services for providers in Illinois 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 Illinois 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