Alexander Nguyen, MD
NPI 1639751746 · Anesthesiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Nguyen, MD is a Anesthesiology Physician provider in San Francisco, CA (NPI 1639751746).
Provider details
- NPI number
- 1639751746
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A200299 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 13001 E 17th PlAurora, CO 80045-2570Phone: (303) 724-1792
- 200 Lothrop StPittsburgh, PA 15213-2536Phone: (412) 692-4947
Registry dates
- Enumerated
- 2021-04-27
- Last updated
- 2025-08-29
- Certified
- 2025-08-29
Frequently asked questions
- What is Alexander Nguyen's NPI number?
- Alexander Nguyen's National Provider Identifier (NPI) is 1639751746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Nguyen's specialty?
- Alexander Nguyen is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Nguyen located?
- Alexander Nguyen's practice location on file with NPPES is 513 Parnassus Ave # S436, San Francisco, CA 94143-2205.
- What is Alexander Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Alexander Nguyen is (415) 353-1297.
- Does Alexander Nguyen accept Medicare?
- Alexander Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Nguyen's NPI active?
- Yes — Alexander Nguyen's NPI (1639751746) is active in the NPPES registry as of the last update on 2025-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.