Jose Isaias Mayen Nunez, MD
NPI 1407879489ActiveIndividual· Internal Medicine· Webster, TX
Internal Medicine (MD) in Webster, Texas, licensed in TX, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $612,588 for 4,168 claims, against $122,634 paid for services in 2024. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $202.10 in all, mostly food and beverage. Lists HCA Houston Healthcare Clear Lake and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1407879489 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Nov 13, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | J4912 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 224 |
|---|---|
| Services billed | 1,505 across 18 procedure codes |
| Paid by Medicare | $122,634 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,168 · 7,818 30-day fills |
|---|---|
| Patients | 484 |
| Total drug cost | $612,588 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliations
- HCA Houston Healthcare Clear LakeWebster, TX
- HCA Houston Healthcare SoutheastPasadena, TX
- Houston Methodist Clear Lake HospitalNassau Bay, TX
- Memorial Hermann Hospital SystemHouston, TX
- St Luke's Patients Medical CenterPasadena, TX
Other facilities
- Pam Rehabilitation Hospital of Clear LakeInpatient rehabilitation facility · Webster, TX
- Kindred Hospital Clear LakeLong-term care hospital · Webster, TX
- Pasadena Post AcuteNursing home · Pasadena, TX
Industry payments (Open Payments)
- 2025$202.10 · 10 payments from 7 companies
- 2024$154.74 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $53.69 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $52.43 | 2 |
| Pulmonx Corporation | $27.33 | 1 |
| Abbott Laboratories | $22.83 | 1 |
| Exact Sciences Corporation | $17.98 | 1 |
What the 2025 payments were for
- Food and Beverage$202.10 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 94 internal medicine physicians in Webster · All internal medicine physicians in Texas