Quick answers
- Which hospitals does Tram Nguyen work at?
- Medicare's official clinician data lists Tram Nguyen at 2 hospitals: Kaiser Foundation Hospital - Fremont and Kaiser Foundation Hospital - San Leandro. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tram Nguyen see patients?
- Medicare's clinician data lists 4 practice locations, including Petaluma, CA, San Leandro, CA and Fremont, CA. Call before your visit to confirm the address.
- What is Tram Nguyen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Tram Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Tram Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Tram Nguyen?
- (707) 763-4109, as listed in official Medicare / NPI Registry data.
- What is Tram Nguyen's NPI number?
- 1992061527. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tram Nguyen works
Medicare's Facility Affiliation Data lists Tram Nguyen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital - FremontFremont, CA · Acute Care Hospital · CCN 050512
- Kaiser Foundation Hospital - San LeandroSan Leandro, CA · Acute Care Hospital · CCN 050777
Practice locations
Addresses where Tram Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Monroe StPetaluma, CA 94954 (707) 763‑4109
- 2500 Merced StSan Leandro, CA 94577 (510) 454‑1000
- 39400 Paseo Padre PkwyFremont, CA 94538 (510) 248‑3000
- 901 Nevin AveRichmond, CA 94801 (510) 307‑1500
Group practices
Medicare enrollment lists Tram Nguyen as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Petaluma
Clinicians with the same Medicare primary specialty in Petaluma, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992061527 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians