Richard Thien Nguyen, M.D.
NPI 1275724361ActiveIndividual· Internal Medicine, Geriatric Medicine· San Diego, CA
Internal Medicine, Geriatric Medicine (M.D.) in San Diego, California, trained at University of Vermont College of Medicine (class of 2005). In 2024 Medicare paid $459,889 for 324 patients, and Part D covered 3,964 of their prescriptions, 82% of them generic.
Overview
| NPI | 1275724361 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 5, 2007 |
| Last updated in NPPES | Apr 6, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | A97934 | CA |
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 - Geriatric Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 324 |
|---|---|
| Services billed | 5,332 across 5 procedure codes |
| Paid by Medicare | $459,889 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,964 · 4,052 30-day fills |
|---|---|
| Patients | 163 |
| Total drug cost | $265,004 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Geriatric Medicine |
| Secondary specialties | Internal Medicine |
Medical groups
- Del Sur HealthcareEl Cajon, CA · 59 clinicians
- Senior Medical Associates IncSan Diego, CA · 12 clinicians
- Rawi Medical, PCSan Diego, CA · 11 clinicians
Other facilities
- Archer Health IncHome health agency · Carlsbad, CA
- Casa de Las CampanasNursing home · San Diego, CA
- Ocean View Post AcuteNursing home · Escondido, CA
- Redwood Terrace Health CenterNursing home · Escondido, CA
- Ridgeview Skilled Nursing FacilityNursing home · San Diego, CA
- Villa Rancho Bernardo Care CenterNursing home · San Diego, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other geriatricians in San Diego
- 1083905715
- 1265879803
- 1265992341
- 1417448135
- 1184958977
- 1003016023
- 1265452882
- 1265641930
- 1316172844
- 1427346758
- 1518524586
- 1598862583
All 42 geriatricians in San Diego · All geriatricians in California