Monica Sanchez Shields, M.D.
NPI 1326243981ActiveIndividual· Internal Medicine, Cardiovascular Disease· Houston, TX
Internal Medicine, Cardiovascular Disease (M.D.) with Ut Physicians, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $242,537 for 1,808 claims, against $47,644 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 2 companies reporting payments in 2025, $124.22 in all, mostly food and beverage. Lists Memorial Hermann - Texas Medical Center as a hospital affiliation.
Overview
| NPI | 1326243981 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 15, 2007 |
| Last updated in NPPES | Dec 12, 2025 |
| Certified by provider | Dec 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | M8313 | TX |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 263272 | NY |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 25MA08286300 | NJ |
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 | 338 |
|---|---|
| Services billed | 692 across 31 procedure codes |
| Paid by Medicare | $47,644 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,808 · 4,951 30-day fills |
|---|---|
| Patients | 323 |
| Total drug cost | $242,537 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical group
- Ut PhysiciansHouston, TX · 1,765 clinicians
Hospital affiliation
- Memorial Hermann - Texas Medical CenterHouston, TX
Industry payments (Open Payments)
- 2025$124.22 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $95.32 | 1 |
| Edwards Lifesciences Corporation | $28.90 | 1 |
What the 2025 payments were for
- Food and Beverage$124.22 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in Houston
- 1003217522
- 1003874371
- 1003918244
- 1013146901
- 1013440882
- 1023279387
- 1023362233
- 1023458080
- 1033299383
- 1033362538
- 1073518569
- 1073531448
All 421 cardiologists in Houston · All cardiologists in Texas