Isaac Perez, M.D.
NPI 1962400937ActiveIndividual· Dermatology· Flower Mound, TX
Dermatology (M.D.) in Flower Mound, Texas, trained at University of Puerto Rico School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $340,924 for 1,028 claims, against $143,563 paid for services in 2024. Janssen Biotech, Inc. was the largest of 17 companies reporting payments in 2025, $2,518 in all, mostly food and beverage.
Overview
| NPI | 1962400937 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 13, 2005 |
| Last updated in NPPES | Nov 4, 2015 |
| Reactivated | Mar 20, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | K3823 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 826 |
|---|---|
| Services billed | 5,843 across 52 procedure codes |
| Paid by Medicare | $143,563 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,028 · 1,146 30-day fills |
|---|---|
| Patients | 388 |
| Total drug cost | $340,924 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Dermatology |
Industry payments (Open Payments)
- 2025$2,518 · 136 payments from 17 companies
- 2024$2,647 · 157 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $536.40 | 19 |
| Abbvie Inc. | $364.17 | 27 |
| Amgen Inc. | $244.43 | 13 |
| Pfizer Inc. | $233.39 | 15 |
| Ucb, Inc. | $218.85 | 11 |
What the 2025 payments were for
- Food and Beverage$2,318 · 134 payments
- Education$199.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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