Serhan Karvar, MD
NPI 1992209167ActiveIndividual· Internal Medicine, Gastroenterology· Iowa City, IA
Internal Medicine, Gastroenterology (MD) with State University of Iowa, practicing in Iowa City, Iowa. Their prescriptions cost Medicare Part D more than their services did: $535,809 for 1,280 claims, against $20,375 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. reported $51.42 in payments in 2025, mostly food and beverage. Lists University of Iowa Hospital & Clinics as a hospital affiliation.
Overview
| NPI | 1992209167 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2018 |
| Last updated in NPPES | Nov 20, 2025 |
| Certified by provider | Nov 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | SP-0258 | IA |
| Internal Medicine | 207R00000X | SP-0258 | IA |
| Internal Medicine, Gastroenterology | 207RG0100X | AL51940 | SC |
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 - Gastroenterology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 215 |
|---|---|
| Services billed | 278 across 5 procedure codes |
| Paid by Medicare | $20,375 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,280 · 1,677 30-day fills |
|---|---|
| Patients | 237 |
| Total drug cost | $535,809 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- State University of IowaCoralville, IA · 1,897 clinicians
Hospital affiliation
- University of Iowa Hospital & ClinicsIowa City, IA
Industry payments (Open Payments)
- 2025$51.42 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $51.42 | 1 |
What the 2025 payments were for
- Food and Beverage$51.42 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Iowa City
- 1003025032
- 1134965882
- 1275517658
- 1386803187
- 1457745937
- 1467436899
- 1568058329
- 1588644207
- 1649687831
- 1780318501
- 1831504380
- 1497014260
All 46 gastroenterologists in Iowa City · All gastroenterologists in Iowa