Quick answers
- Does Oanh H. Phan accept Medicare assignment?
- Yes. Medicare's clinician data says Oanh H. Phan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Oanh H. Phan's NPI number?
- 1467000463. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Oanh H. Phan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1390 Market St, Suite 109San Francisco, CA 94102 (415) 918‑5766
- 1998 Market StSan Francisco, CA 94102 (415) 792‑6040
- 3251 20th Ave, Suite 320San Francisco, CA 94132 (415) 480‑1160
Group practices
Medicare enrollment lists Oanh H. Phan as a member of this group (CMS data updated October 2, 2026).
- Carbon Health Medical Group of California PC334 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Other clinicians in Carbon Health Medical Group of California PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| School | University Of California, Davis School Of Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467000463 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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