Dr. Peter R. Ermis, M.D.
Cardiology (Adult Congenital Heart Disease Physician)
- Medicare participating
At a glance
- Medical school
- University of Texas Medical School at San Antonio (2005)
- Years since graduation
- 21
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 35
Licensed in Texas since 2010, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2005Medical school: University of Texas Medical School at San Antonio
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Adult Congenital Heart Disease Physician primary
TX license N5041 (first issued 2010; active) -
Cardiovascular Disease Physician
TX license N5041 (first issued 2010; active) -
Internal Medicine Physician
TX license BP10023326 -
Pediatric Cardiology Physician
TX license N5041 (first issued 2010; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Texas Childrens Hospital Houston, TX
Medical groups
- Texas Childrens Physician Group (671 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 35
- Services billed
- 109
- Patients’ average age
- 41
| Service | Times | Patients |
|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 24 | 19 |
| Established patient office or other outpatient visit, 30-39 minutes | 16 | 15 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Metoprolol Succinate Other prescribers in Houston, TX | 45 |
| Lisinopril Other prescribers in Houston, TX | 40 |
| Furosemide Other prescribers in Houston, TX | 36 |
| Spironolactone Other prescribers in Houston, TX | 35 |
| Eliquis (apixaban) Other prescribers in Houston, TX | 32 |
| Warfarin Sodium Other prescribers in Houston, TX | 24 |
| Potassium Chloride Other prescribers in Houston, TX | 18 |
| Digoxin Other prescribers in Houston, TX | 16 |
| Tadalafil | 16 |
| Gabapentin Other prescribers in Houston, TX | 13 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 2 companies reported 2 payments worth $199 in total to this clinician.
| Medtronic, Inc. | $161 |
|---|---|
| Alnylam Pharmaceuticals Inc. | $37.80 |
| Food and Beverage | $199 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.