Ghassan Naisan
NPI 1104494236ActiveIndividual· Internal Medicine· Midland, MI
Internal Medicine in Midland, Michigan, trained at West Virginia School of Osteopathic Medicine (class of 2021). In 2024 Medicare paid $13,560 for 58 patients, and Part D covered 134 of their prescriptions, 86% of them generic. Paratek Pharmaceuticals, Inc. was the largest of 5 companies reporting payments in 2025, $248.70 in all, mostly food and beverage.
Overview
| NPI | 1104494236 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 15, 2021 |
| Last updated in NPPES | Apr 22, 2026 |
| Certified by provider | Apr 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5315226786 | MI |
| Hospitalist | 208M00000X | 5315226786 | MI |
| General Practice | 208D00000X | 5151015294 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 199 across 8 procedure codes |
| Paid by Medicare | $13,560 |
Part D prescriptions in 2024
| Prescriptions (claims) | 134 · 139 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $7,299 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | West Virginia School of Osteopathic Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Internal Medicine |
Medical groups
- Edward W Sparrow Hospital AssociationLansing, MI · 730 clinicians
- Mymichigan Medical GroupMidland, MI · 174 clinicians
- Sound Inpatient Physicians-Michigan PLLCPort Huron, MI · 171 clinicians
Hospital affiliations
- Ascension Genesys HospitalGrand Blanc, MI
- Mymichigan Medical Center ClareClare, MI
- Mymichigan Medical Center GladwinGladwin, MI
- Mymichigan Medical Center MidlandMidland, MI
- Saint Mary's Standish Community HospitalStandish, MI
Industry payments (Open Payments)
- 2025$248.70 · 10 payments from 5 companies
- 2024$29.91 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Paratek Pharmaceuticals, Inc. | $69.29 | 3 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $68.89 | 3 |
| Mallinckrodt Hospital Products Inc. | $62.85 | 2 |
| Vertex Pharmaceuticals Incorporated | $27.08 | 1 |
| Pfizer Inc. | $20.59 | 1 |
What the 2025 payments were for
- Food and Beverage$248.70 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 internal medicine physicians in Midland · All internal medicine physicians in Michigan