Karan Mathur, M.D.
NPI 1205277811ActiveIndividual· Internal Medicine, Gastroenterology· Detroit, MI
Internal Medicine, Gastroenterology (M.D.) with University Physician Group, practicing in Detroit, Michigan. Their prescriptions cost Medicare Part D more than their services did: $51,423 for 167 claims, against $10,420 paid for services in 2024. Smith+nephew, Inc. was the largest of 3 companies reporting payments in 2025, $125.55 in all, mostly food and beverage. Lists Detroit Receiving Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1205277811 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 11, 2013 |
| Last updated in NPPES | Jan 9, 2026 |
| Certified by provider | Jan 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301501018 | 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 | 56 |
|---|---|
| Services billed | 109 across 19 procedure codes |
| Paid by Medicare | $10,420 |
Part D prescriptions in 2024
| Prescriptions (claims) | 167 · 236 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $51,423 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
Medical group
- University Physician GroupDetroit, MI · 403 clinicians
Hospital affiliations
- Detroit Receiving HospitalDetroit, MI
- Harper University HospitalDetroit, MI
- Karmanos Cancer CenterDetroit, MI
Industry payments (Open Payments)
- 2025$125.55 · 5 payments from 3 companies
- 2024$226.61 · 12 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $51.57 | 2 |
| Janssen Biotech, Inc. | $40.03 | 2 |
| Abbvie Inc. | $33.95 | 1 |
What the 2025 payments were for
- Food and Beverage$125.55 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 gastroenterologists in Detroit · All gastroenterologists in Michigan