Stephen R. Wells, MD
NPI 1659385151ActiveIndividual· Obstetrics & Gynecology· Walnut Creek, CA
Obstetrics & Gynecology (MD) in Walnut Creek, California, trained at Louisiana State University School of Medicine in New Orleans (class of 1990). 98 Medicare patients in 2024, $17,359 paid; nearly all of their 57 Part D prescriptions were generic (93%). Abbvie Inc. was the largest of 12 companies reporting payments in 2025, $712.68 in all, mostly food and beverage.
Overview
| NPI | 1659385151 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 28, 2006 |
| Last updated in NPPES | Feb 10, 2025 |
| Certified by provider | Feb 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A49731 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 98 |
|---|---|
| Services billed | 210 across 25 procedure codes |
| Paid by Medicare | $17,359 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 110 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $4,187 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliation
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$712.68 · 31 payments from 12 companies
- 2024$710.58 · 29 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $171.94 | 7 |
| Mayne Pharma Commercial LLC | $118.61 | 7 |
| Astellas Pharma US Inc | $93.91 | 4 |
| Exeltis, USA Inc. | $65.38 | 3 |
| Biogen, Inc. | $56.22 | 2 |
What the 2025 payments were for
- Food and Beverage$712.68 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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