Louis Marc Hamer, MD
NPI 1326083288ActiveIndividual· Internal Medicine, Pulmonary Disease· Pasadena, TX
Internal Medicine, Pulmonary Disease (MD) in Pasadena, Texas, trained at Perelman School of Med at the University of Pennsylvania (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $450,225 for 1,308 claims, against $99,440 paid for services in 2024.
Overview
| NPI | 1326083288 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 17, 2006 |
| Last updated in NPPES | Feb 21, 2022 |
| Certified by provider | Feb 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | J3113 | TX |
| Internal Medicine, Critical Care Medicine | 207RC0200X | J3113 | 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 - Pulmonary Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 201 |
|---|---|
| Services billed | 977 across 20 procedure codes |
| Paid by Medicare | $99,440 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,308 · 2,429 30-day fills |
|---|---|
| Patients | 304 |
| Total drug cost | $450,225 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Hospital affiliations
- Baylor St Lukes Medical CenterHouston, TX
- HCA Houston Healthcare SoutheastPasadena, TX
- St Luke's Patients Medical CenterPasadena, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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