Peter R. Ermis, M.D.
NPI 1639322407ActiveIndividual· Internal Medicine, Adult Congenital Heart Disease· Houston, TX
Internal Medicine, Adult Congenital Heart Disease (M.D.) in Houston, Texas, trained at University of Texas Medical School at San Antonio (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $354,217 for 439 claims, against $4,817 paid for services in 2024. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $199.02 in all, mostly food and beverage.
Overview
| NPI | 1639322407 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 24, 2008 |
| Last updated in NPPES | Sep 17, 2026 |
| Certified by provider | Sep 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Adult Congenital Heart Disease Primary | 207RA0002X | N5041 | TX |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | N5041 | TX |
| Internal Medicine | 207R00000X | BP10023326 | TX |
| Pediatrics, Pediatric Cardiology | 2080P0202X | N5041 | 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 - Cardiovascular Disease (Cardiology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 109 across 13 procedure codes |
| Paid by Medicare | $4,817 |
Part D prescriptions in 2024
| Prescriptions (claims) | 439 · 1,061 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $354,217 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine, Pediatric Medicine |
Medical group
- Texas Childrens Physician GroupHouston, TX · 671 clinicians
Hospital affiliation
- Texas Childrens HospitalHouston, TX
Industry payments (Open Payments)
- 2025$199.02 · 2 payments from 2 companies
- 2024$655.05 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $161.22 | 1 |
| Alnylam Pharmaceuticals Inc. | $37.80 | 1 |
What the 2025 payments were for
- Food and Beverage$199.02 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Adult Congenital Heart Disease providers in Texas