Chad S. Abbey, DO
NPI 1336346568ActiveIndividual· Obstetrics & Gynecology· Billings, MT
Obstetrics & Gynecology (DO) in Billings, Montana, trained at West Virginia School of Osteopathic Medicine (class of 2007). Mostly services rather than prescriptions: Medicare paid $4,696 for 24 patients in 2024, with only 41 Part D claims. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $91.64 in all, mostly food and beverage.
Overview
| NPI | 1336346568 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Jun 29, 2007 |
| Last updated in NPPES | Jun 17, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 41014 | MT |
| Obstetrics & Gynecology | 207V00000X | MED-PHYS-LIC-41014 | MT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 44 across 16 procedure codes |
| Paid by Medicare | $4,696 |
Part D prescriptions in 2024
| Prescriptions (claims) | 41 · 61 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $2,059 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | West Virginia School of Osteopathic Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Billings OB-GYN Associates PCBillings, MT · 12 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$91.64 · 3 payments from 2 companies
- 2024$112.41 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $57.32 | 2 |
| Astellas Pharma US Inc | $34.32 | 1 |
What the 2025 payments were for
- Food and Beverage$91.64 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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