Charles Sims, MD
NPI 1245281294ActiveIndividual· Internal Medicine, Infectious Disease· Shenandoah, TX
Internal Medicine, Infectious Disease (MD) in Shenandoah, Texas, trained at University of Texas Medical School at Houston (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $1,597,820 for 1,983 claims, against $58,977 paid for services in 2024. Gilead Sciences, Inc. was the largest of 11 companies reporting payments in 2025, $1,653 in all, mostly food and beverage.
Overview
| NPI | 1245281294 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 15, 2006 |
| Last updated in NPPES | Jan 8, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | M3390 | 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 | 290 |
|---|---|
| Services billed | 2,292 across 14 procedure codes |
| Paid by Medicare | $58,977 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,983 · 2,612 30-day fills |
|---|---|
| Patients | 363 |
| Total drug cost | $1,597,820 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Baylor St. Luke's Medical GroupThe Woodlands, TX · 170 clinicians
Hospital affiliations
- Baylor St Lukes Medical CenterHouston, TX
- Chi St Lukes Health Memorial LivingstonLivingston, TX
- Houston Methodist the Woodlands HospitalThe Woodlands, TX
- Memorial Hermann Hospital SystemHouston, TX
- St Luke's the Woodlands HospitalThe Woodlands, TX
Industry payments (Open Payments)
- 2025$1,653 · 63 payments from 11 companies
- 2024$1,316 · 52 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $539.93 | 18 |
| Viiv Healthcare Company | $316.13 | 13 |
| Paratek Pharmaceuticals, Inc. | $205.36 | 8 |
| Insmed, Inc. | $122.87 | 4 |
| Abbvie Inc. | $120.87 | 5 |
What the 2025 payments were for
- Food and Beverage$1,653 · 63 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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