Derek Dangkhiem Nguyen, MD
NPI 1306422399ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (MD) in San Francisco, California, trained at St. Louis College of Physicians and Surgeons (class of 2021). Mostly services rather than prescriptions: Medicare paid $6,607 for 41 patients in 2024, with only 39 Part D claims. Organon LLC was the largest of 5 companies reporting payments in 2025, $367.62 in all, mostly food and beverage.
Overview
| NPI | 1306422399 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2021 |
| Last updated in NPPES | Dec 24, 2024 |
| Certified by provider | Dec 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A197356 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 79 across 20 procedure codes |
| Paid by Medicare | $6,607 |
Part D prescriptions in 2024
| Prescriptions (claims) | 39 · 44 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $4,928 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | St. Louis College of Physicians and Surgeons |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- California Pacific Medical Center - Mission BernalSan Francisco, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
- Novato Community HospitalNovato, CA
Other facilities
- Healthflex Home Health ServicesHome health agency · Oakland, CA
- Sutter Care at HomeHome health agency · San Francisco, CA
Industry payments (Open Payments)
- 2025$367.62 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $167.86 | 1 |
| Sanofi-Aventis U.S. LLC | $117.86 | 1 |
| Biogen, Inc. | $29.56 | 1 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $26.17 | 1 |
| Dexcom, Inc. | $26.17 | 1 |
What the 2025 payments were for
- Food and Beverage$367.62 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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