Sharafali Y. Diwan, M.D.
NPI 1114927290ActiveIndividual· Internal Medicine, Infectious Disease· Houston, TX
Internal Medicine, Infectious Disease (M.D.) in Houston, Texas, licensed in TX, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $1,529,445 for 685 claims, against $264,126 paid for services in 2024. Gilead Sciences, Inc. was the largest of 4 companies reporting payments in 2025, $637.63 in all, mostly food and beverage. Lists HCA Houston Healthcare Conroe and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1114927290 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 29, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | J6920 | TX |
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 - Infectious Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 400 |
|---|---|
| Services billed | 4,172 across 15 procedure codes |
| Paid by Medicare | $264,126 |
Part D prescriptions in 2024
| Prescriptions (claims) | 685 · 800 30-day fills |
|---|---|
| Patients | 131 |
| Total drug cost | $1,529,445 |
| Generic share | 43% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Infectious Disease |
Hospital affiliations
- HCA Houston Healthcare ConroeConroe, TX
- HCA Houston Healthcare KingwoodKingwood, TX
- HCA Houston Healthcare NorthwestHouston, TX
- HCA Houston Healthcare TomballTomball, TX
- Huntsville Memorial HospitalHuntsville, TX
Industry payments (Open Payments)
- 2025$637.63 · 38 payments from 4 companies
- 2024$1,079 · 53 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $422.91 | 31 |
| Astellas Pharma US Inc | $134.64 | 3 |
| Paratek Pharmaceuticals, Inc. | $41.45 | 2 |
| Viiv Healthcare Company | $38.63 | 2 |
What the 2025 payments were for
- Food and Beverage$521.64 · 36 payments
- Education$115.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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