Nasser Hajar, M.D.
NPI 1689820631ActiveIndividual· Internal Medicine· Sylvania, OH
Internal Medicine (M.D.) with Promedica Central Physicians and 1 other group, practicing in Sylvania, Ohio. Their prescriptions cost Medicare Part D more than their services did: $582,537 for 1,320 claims, against $176,662 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $346.82 in all, mostly food and beverage. Lists Bay Park Community Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1689820631 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 11, 2008 |
| Last updated in NPPES | Nov 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 004026 | NY |
| Hospitalist | 208M00000X | 004026 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Gastroenterology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 397 |
|---|---|
| Services billed | 5,576 across 65 procedure codes |
| Paid by Medicare | $176,662 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,320 · 2,372 30-day fills |
|---|---|
| Patients | 472 |
| Total drug cost | $582,537 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Promedica Central PhysiciansToledo, OH · 785 clinicians
- Specialty Physicians of Blanchard Valley LLCFindlay, OH · 113 clinicians
Hospital affiliations
- Bay Park Community HospitalOregon, OH
- Memorial HospitalFremont, OH
- Promedica Charles and Virginia Hickman HospitalAdrian, MI
- Promedica Monroe Regional HospitalMonroe, MI
- Promedica Toledo HospitalToledo, OH
Industry payments (Open Payments)
- 2025$346.82 · 20 payments from 3 companies
- 2024$545.50 · 27 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $287.86 | 17 |
| Gilead Sciences, Inc. | $38.38 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $20.58 | 1 |
What the 2025 payments were for
- Food and Beverage$346.82 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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