ALEXANDER DUNG NGUYEN MD
NPI 1639751746
Anesthesiology in San Francisco, CA

Q: What is Alexander Nguyen's NPI number?

The NPI number for Alexander Nguyen is 1639751746. It was assigned to this individual provider in the NPPES registry on April 27, 2021.

Q: What is Alexander Nguyen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Alexander Nguyen was last updated on August 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 27, 2021PECOS EnrolledAccepts Medicare Assignment

513 PARNASSUS AVE # S436, SAN FRANCISCO, CA 94143(415) 353-1297 Get Directions Write a Review

NPPES record last updated: August 29, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 27, 2022, Apr 19, 2022, Apr 29, 2021 (3 updates tracked since 2021).

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About Alexander Dung Nguyen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDER DUNG NGUYEN MD (NPI 1639751746) is an individual anesthesiology provider in San Francisco, California, licensed in California (A200299) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Aurora (2021).

NPPES Registry Identity

NPI1639751746

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameALEXANDER DUNG NGUYENCredential: MD

Location Address513 PARNASSUS AVE # S436San Francisco, CA 94143-2205

Mailing Address12631 E 17th Ave Ste 2001Aurora, CO 80045-2527

Phone(415) 353-1297

Sole ProprietorNo

Medical School CMSUniversity Of Colorado School Of Medicine, AuroraGraduated 2021

Enumeration DateApril 27, 2021

Last NPPES UpdateAugust 29, 20253 updates tracked since enumeration

NPPES CertifiedAugust 29, 2025

✔ NPI 1639751746 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A200299

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

513 PARNASSUS AVE # S436, San Francisco, CA 94143

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexander Dung Nguyen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476953548

PECOS Enrollment IDI20250912001927

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RYAN ANDREW BARRERA MD

Anesthesiology