Dennis Huu-Luyen Nguyen, M.D.
NPI 1740482603ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· Rancho Cordova, CA
Dermatology, MOHS-Micrographic Surgery (M.D.) in Rancho Cordova, California, trained at University of California, San Francisco School of Medicine (class of 2004). 542 Medicare patients in 2024, $723,289 paid; all of their 583 Part D prescriptions were generic. Regeneron Healthcare Solutions, Inc. was the largest of 7 companies reporting payments in 2025, $280.50 in all, mostly food and beverage.
Overview
| NPI | 1740482603 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 4, 2007 |
| Last updated in NPPES | Jul 26, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | A107638 | CA |
| Dermatology | 207N00000X | 57.010897 | OH |
| Dermatology, MOHS-Micrographic Surgery | 207ND0101X | 248179 | NY |
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 - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 542 |
|---|---|
| Services billed | 2,074 across 66 procedure codes |
| Paid by Medicare | $723,289 |
Part D prescriptions in 2024
| Prescriptions (claims) | 583 · 583 30-day fills |
|---|---|
| Patients | 471 |
| Total drug cost | $3,805 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Dermatology |
Medical groups
- Island Dermatology, Inc.Santa Ana, CA · 27 clinicians
- Comprehensive Dermatology of Long Beach PCLong Beach, CA · 6 clinicians
- Malcolm Ke MD A Professional CorporationTorrance, CA · 5 clinicians
- Phillip H A Lee MD and Center for Advanced DermatologySouth Pasadena, CA · 4 clinicians
- Agape Dermatology PCHuntington Beach, CA · 4 clinicians
- Mpz DermatologyCorona, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$280.50 · 11 payments from 7 companies
- 2024$485.80 · 18 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $55.74 | 2 |
| Cipher Pharmaceuticals US LLC | $47.74 | 2 |
| Smith+nephew, Inc. | $46.95 | 1 |
| Janssen Biotech, Inc. | $46.16 | 2 |
| Lilly USA, LLC | $40.55 | 2 |
What the 2025 payments were for
- Food and Beverage$280.50 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology, MOHS-Micrographic Surgery providers in Rancho Cordova
- 1811061195
- 1861553729
All Dermatology, MOHS-Micrographic Surgery providers in California →