Mary M. Ahmadian, N.P.
NPI 1952812448ActiveIndividual· Nurse Practitioner, Acute Care· Irvine, CA
Nurse Practitioner, Acute Care (N.P.) with South Bay Gastroenterology Medical Group, practicing in Irvine, California. Their prescriptions cost Medicare Part D more than their services did: $180,820 for 614 claims, against $19,381 paid for services in 2024. Abbvie Inc. was the largest of 12 companies reporting payments in 2025, $824.55 in all, mostly food and beverage. Lists Torrance Memorial Medical Center as a hospital affiliation.
Overview
| NPI | 1952812448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | N.P. |
| Sole proprietor | No |
| NPI issued | Oct 24, 2017 |
| Last updated in NPPES | Oct 24, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | 95007280 | CA |
| Nurse Practitioner, Gerontology | 363LG0600X | 95007280 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 265 across 7 procedure codes |
| Paid by Medicare | $19,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 614 · 1,345 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $180,820 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- South Bay Gastroenterology Medical GroupTorrance, CA · 12 clinicians
Hospital affiliation
- Torrance Memorial Medical CenterTorrance, CA
Industry payments (Open Payments)
- 2025$824.55 · 44 payments from 12 companies
- 2024$931.69 · 52 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $348.56 | 22 |
| Madrigal Pharmaceuticals | $133.06 | 5 |
| Pfizer Inc. | $95.34 | 5 |
| Genzyme Corporation | $53.02 | 2 |
| Janssen Biotech, Inc. | $50.58 | 3 |
What the 2025 payments were for
- Food and Beverage$824.55 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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