Ahmed Sultan Khan, M.D.
NPI 1194821983ActiveIndividual· Internal Medicine, Gastroenterology· Evansville, IN
Internal Medicine, Gastroenterology (M.D.) with Digestive Care of Evansville PC, practicing in Evansville, Indiana. In 2024 Medicare paid $232,458 for 551 patients, and Part D covered 915 of their prescriptions, 79% of them generic. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,237 in all, mostly food and beverage. Lists Ascension St Vincent Evansville and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1194821983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 16, 2006 |
| Last updated in NPPES | Feb 25, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 01055521A | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 551 |
|---|---|
| Services billed | 5,742 across 73 procedure codes |
| Paid by Medicare | $232,458 |
Part D prescriptions in 2024
| Prescriptions (claims) | 915 · 1,518 30-day fills |
|---|---|
| Patients | 538 |
| Total drug cost | $247,199 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
Medical group
- Digestive Care of Evansville PCNewburgh, IN · 27 clinicians
Hospital affiliations
- Ascension St Vincent EvansvilleEvansville, IN
- Deaconess Hospital IncEvansville, IN
- Fairfield Memorial Hospital 1Fairfield, IL
- Good Samaritan HospitalVincennes, IN
- Memorial Hospital and Health Care CenterJasper, IN
Industry payments (Open Payments)
- 2025$1,237 · 56 payments from 17 companies
- 2024$950.94 · 45 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $248.17 | 14 |
| Takeda Pharmaceuticals U.S.A., Inc. | $160.98 | 6 |
| Madrigal Pharmaceuticals | $120.32 | 3 |
| Pfizer Inc. | $105.27 | 5 |
| Janssen Biotech, Inc. | $91.61 | 4 |
What the 2025 payments were for
- Food and Beverage$1,237 · 56 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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