State Specialty Directory
Obstetrics Physician in CA
Federal CMS data for 8 obstetrics physician providers across CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
8
Providers
Median industry payments
$940
8
Obstetrics Physician Providers
in CA
$940
Median Industry Payments
per provider (2018–2024)
243
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing.
Obstetrics Physician includes multiple subspecialties with different practice patterns.
Learn more →
Obstetrics Physician Providers — CA
NPPES · Open Payments · Medicare| Provider | City | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|---|
| KARNANI, JAYA MD | Castro Valley | 1,340 | 1,035 | Office visit, established patient (30-39 min) | $29 (2018-2021) | Food & Beverage (100%) | Very High |
| PENA, JORGE M.D. | Redding | 826 | 620 | Office visit, established patient (20-29 min) | $768 (2018-2023) | Food & Beverage (93%) | Very High |
| GROSSMAN, ROBERT MD | Thousand Oaks | 622 | 589 | Office visit, established patient (30-39 min) | $1,111 (2018-2024) | Food & Beverage (97%) | Very High |
| FRIEDMAN, RICHARD M.D. | Burbank | 263 | 241 | Office visit, established patient (20-29 min) | $16,473 (2018-2024) | Education (76%) | Very High |
| NISHIGUCHI, DON M.D. | Valencia | 223 | 201 | Pelvic and clinical breast exam for cancer screening | $4,232 (2018-2024) | Food & Beverage (96%) | Very High |
| PAINTER, CAITLYN D.O. | San Francisco | 178 | 173 | New patient office visit, complex (60-74 min) | $549 (2021-2024) | Food & Beverage (100%) | Very High |
| ARDALAN, MARYAM MD | Santa Clarita | 156 | 131 | Office visit, established patient (30-39 min) | $2,567 (2018-2024) | Food & Beverage (54%) | Very High |
| KROMHOUT, AARON M.D. | San Luis Obispo | 78 | 69 | Office visit, established patient (20-29 min) | $266 (2018-2024) | Food & Beverage (100%) | Very High |
Note: Obstetrics Physician encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.