DR. SAN T NGUYEN MD
NPI 1194738849
Specialist in Alhambra, CA

Q: What is San Nguyen's NPI number?

The NPI number for San Nguyen is 1194738849. It was assigned to this individual provider in the NPPES registry on August 14, 2006.

Q: What is San Nguyen's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for San Nguyen was last updated on March 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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 August 14, 2006PECOS Enrolled

1021 S GARFIELD AVE, ALHAMBRA, CA 91801(626) 282-6311(626) 282-6053 Get Directions Write a Review

NPPES record last updated: March 20, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. San T Nguyen Md NPPES

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

DR. SAN T NGUYEN MD (NPI 1194738849) is an individual specialist in Alhambra, California, licensed in California (A32179) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194738849

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameDR. SAN T NGUYENCredential: MD

Location Address1021 S GARFIELD AVEAlhambra, CA 91801-4710

Mailing Address1021 S Garfield AveAlhambra, CA 91801-4710 · (626) 282-6311 · Fax (626) 282-6053

Phone(626) 282-6311

Fax(626) 282-6053

Sole ProprietorYes

Enumeration DateAugust 14, 2006

Last NPPES UpdateMarch 20, 2020

NPPES CertifiedMarch 20, 2020

✔ NPI 1194738849 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · A32179

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1021 S GARFIELD AVE, Alhambra, CA 91801

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Other Identifiers 1

Medicaid1194738849CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. San T Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show San Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Wynn Medical Center Pediatrics-Medicine

1.8 mi

Pediatrics

401 N GARFIELD AVE STE 203
Monterey Park, CA 91754

Reassigned Medicare billing, California enrollment

NPI 1275382392 (626) 573-9003

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 2

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

DR. THUC T BACH M.D.

Specialist/Technologist, Other (Surgical Assistant)

1021 S GARFIELD AVE
ALHAMBRA, CA 91801

Los Angeles County (626) 282-6740

WYNN MEDICAL CENTER PSYCHIATRY AND BEHAVIORAL HEALTH

Psychiatry & Neurology (Psychiatry)

1021 S GARFIELD AVE
ALHAMBRA, CA 91801

Los Angeles County (626) 316-8287

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is San Nguyen's NPI number?

The NPI number for San Nguyen is 1194738849. It was assigned to this individual provider in the NPPES registry on August 14, 2006.

Where is San Nguyen located?

San Nguyen practices at 1021 S Garfield Ave, Alhambra, CA 91801. The listed phone number is (626) 282-6311.

What is San Nguyen's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is San Nguyen enrolled in Medicare?

Yes. San Nguyen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for San Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), San Nguyen reassigns Medicare benefits to Wynn Medical Center Pediatrics-Medicine (Monterey Park, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for San Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for San Nguyen was last updated on March 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.