Mohsen Nasir, MD
NPI 1528287240ActiveIndividual· Allergy & Immunology· Saginaw, MI
Allergy & Immunology (MD) in Saginaw, Michigan, trained at New York Medical College (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $496,857 for 335 claims, against $5,586 paid for services in 2024. Genzyme Corporation was the largest of 19 companies reporting payments in 2025, $3,505 in all, mostly food and beverage.
Overview
| NPI | 1528287240 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 24, 2007 |
| Last updated in NPPES | Aug 4, 2021 |
| Certified by provider | Aug 4, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 4301097772 | 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 - Allergy/Immunology (IL); Practitioner - Allergy/Immunology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 38 |
|---|---|
| Services billed | 391 across 17 procedure codes |
| Paid by Medicare | $5,586 |
Part D prescriptions in 2024
| Prescriptions (claims) | 335 · 451 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $496,857 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical groups
- Insight Chicago IncChicago, IL · 141 clinicians
- Jawad A Shah MD PCFlint, MI · 92 clinicians
Hospital affiliation
- Southeast Michigan Surgical Hospital LLCWarren, MI
Industry payments (Open Payments)
- 2025$3,505 · 94 payments from 19 companies
- 2024$851.36 · 38 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $1,924 | 13 |
| Astrazeneca Pharmaceuticals LP | $292.19 | 18 |
| Novartis Pharmaceuticals Corporation | $212.14 | 12 |
| Csl Behring | $205.86 | 8 |
| Glaxosmithkline, LLC. | $170.45 | 14 |
What the 2025 payments were for
- Food and Beverage$1,734 · 91 payments
- Consulting Fee$1,719 · 1 payment
- Education$51.71 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records