Ismael Diaz Jr., MD
NPI 1831187004ActiveIndividual· Family Medicine· Humble, TX
Family Medicine (MD) in Humble, Texas, trained at University of Texas Medical School at Houston (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $928,108 for 9,602 claims, against $133,238 paid for services in 2024. Novo Nordisk Inc was the largest of 25 companies reporting payments in 2025, $1,964 in all, mostly food and beverage.
Overview
| NPI | 1831187004 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 11, 2005 |
| Last updated in NPPES | Jun 15, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | L3952 | 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 368 |
|---|---|
| Services billed | 3,712 across 93 procedure codes |
| Paid by Medicare | $133,238 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,602 · 23,154 30-day fills |
|---|---|
| Patients | 817 |
| Total drug cost | $928,108 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Family Practice |
Medical group
- Mehta Medical Group PLLCHumble, TX · 24 clinicians
Hospital affiliations
- HCA Houston Healthcare KingwoodKingwood, TX
- Memorial Hermann Northeast HospitalHumble, TX
Other facilities
- Accentcare Home Health of Houston - North, LLCHome health agency · Houston, TX
- Enhabit Home HealthHome health agency · Kingwood, TX
- Signature Health ServicesHome health agency · Baytown, TX
- Connect Care Hospice IncHospice · Houston, TX
Industry payments (Open Payments)
- 2025$1,964 · 79 payments from 25 companies
- 2024$1,438 · 75 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $501.10 | 15 |
| Astrazeneca Pharmaceuticals LP | $154.32 | 7 |
| Inspire Medical Systems, Inc. | $148.33 | 4 |
| Neurocrine Biosciences, Inc. | $119.16 | 4 |
| Sanofi-Aventis U.S. LLC | $115.64 | 6 |
What the 2025 payments were for
- Food and Beverage$1,964 · 79 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 76 family medicine physicians in Humble · All family medicine physicians in Texas