Margaret McLendon Cosnahan, MD
NPI 1194304402ActiveIndividual· Internal Medicine· Jackson, MS
Internal Medicine (MD) in Jackson, Mississippi, trained at University of Mississippi School of Medicine (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $14,851 for 208 claims, against $4,138 paid for services in 2024. Pfizer Inc. was the largest of 5 companies reporting payments in 2025, $132.90 in all, mostly food and beverage.
Overview
| NPI | 1194304402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 5, 2021 |
| Last updated in NPPES | Jul 6, 2021 |
| Certified by provider | Jul 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | T-4350 | MS |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | MS |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 51 across 5 procedure codes |
| Paid by Medicare | $4,138 |
Part D prescriptions in 2024
| Prescriptions (claims) | 208 · 326 30-day fills |
|---|---|
| Patients | 60 |
| Total drug cost | $14,851 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Internal Medicine |
Medical group
- State of Mississippi - University of Mississippi Medical CenterJackson, MS · 965 clinicians
Hospital affiliation
- University of Mississippi Med CenterJackson, MS
Industry payments (Open Payments)
- 2025$132.90 · 6 payments from 5 companies
- 2024$107.17 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $43.12 | 2 |
| Alexion Pharmaceuticals, Inc. | $34.75 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $22.17 | 1 |
| Smith+nephew, Inc. | $19.06 | 1 |
| Abbvie Inc. | $13.80 | 1 |
What the 2025 payments were for
- Food and Beverage$132.90 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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