Diana Kim Nguyen, MD
NPI 1750385688ActiveIndividual· Dermatology· Richardson, TX
Dermatology (MD) in Richardson, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1998). 449 Medicare patients in 2024, $64,965 paid; nearly all of their 280 Part D prescriptions were generic (96%). Janssen Biotech, Inc. was the largest of 19 companies reporting payments in 2025, $1,745 in all, mostly food and beverage.
Overview
| NPI | 1750385688 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2005 |
| Last updated in NPPES | May 28, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | L0877 | 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 | 449 |
|---|---|
| Services billed | 1,515 across 28 procedure codes |
| Paid by Medicare | $64,965 |
Part D prescriptions in 2024
| Prescriptions (claims) | 280 · 315 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $82,266 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Dermatology |
Medical group
- Dermatology Specialists, PARichardson, TX · 5 clinicians
Industry payments (Open Payments)
- 2025$1,745 · 86 payments from 19 companies
- 2024$1,553 · 72 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $320.84 | 9 |
| Abbvie Inc. | $163.36 | 11 |
| Amgen Inc. | $160.74 | 6 |
| Lilly USA, LLC | $160.37 | 7 |
| Incyte Corporation | $141.13 | 11 |
What the 2025 payments were for
- Food and Beverage$1,635 · 84 payments
- Education$109.64 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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