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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

VIVIAN HUYEN NGUYEN PA-C
NPI 1811583362
Physician Assistant in San Jose, CA

Active since December 18, 2020PECOS Enrolled
1799 HAMILTON AVE, SAN JOSE, CA 95125(888) 530-4415(833) 449-4676 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 20, 2026, Mar 6, 2025, Feb 28, 2025 and 4 more (7 updates tracked since 2020).

About Vivian Huyen Nguyen Pa-c NPPES

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

VIVIAN HUYEN NGUYEN PA-C (NPI 1811583362) is an individual physician assistant in San Jose, California, licensed in California (PA59227) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811583362
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameVIVIAN HUYEN NGUYENCredential: PA-C
Location Address1799 HAMILTON AVESan Jose, CA 95125-5425
Mailing Address1799 Hamilton AveSan Jose, CA 95125-5425 · (888) 530-4415
Phone(888) 530-4415
Fax(833) 449-4676
Sole ProprietorNo
Enumeration DateDecember 18, 2020
Last NPPES UpdateJuly 20, 20267 updates tracked since enumeration
NPPES CertifiedJuly 20, 2026
✔ NPI 1811583362 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · PA59227
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1799 HAMILTON AVE, San Jose, CA 95125
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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 (PECOS)

Vivian Huyen Nguyen Pa-c 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95125 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

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

MS. QING MU MSTCM
Acupuncturist
1799 HAMILTON AVE, SUITE 102
SAN JOSE, CA 95125
Santa Clara County (408) 264-6800
ELLEN WILLIAMS MSW, LISW-S
Social Worker (Clinical)
1799 HAMILTON AVE
SAN JOSE, CA 95125
Santa Clara County (888) 530-4415
NANCY EVELYN CHEN M.D.
Internal Medicine
1799 HAMILTON AVE
SAN JOSE, CA 95125
Santa Clara County (408) 889-1216
MRS. NAVDEEP BAMRAH NP
Nurse Practitioner (Family)
1799 HAMILTON AVE
SAN JOSE, CA 95125
Santa Clara County (866) 598-6080
WELBEHEALTH BAY AREA PACE, LLC
Program of All-Inclusive Care for the Elderly (PACE) Provider Organization
1799 HAMILTON AVE
SAN JOSE, CA 95125
Santa Clara County (650) 242-5908
SHUI MEI WU
Acupuncturist
1799 HAMILTON AVE, SUITE 102
SAN JOSE, CA 95125
Santa Clara County (408) 264-6800
LESLY MARIE DOSONO BARCENA DNP, ARNP, AGNP-C
Nurse Practitioner (Primary Care)
1799 HAMILTON AVE
SAN JOSE, CA 95125
Santa Clara County (888) 530-4415

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 Vivian Nguyen's NPI number?

The NPI number for Vivian Nguyen is 1811583362. It was assigned to this individual provider in the NPPES registry on December 18, 2020.

Where is Vivian Nguyen located?

Vivian Nguyen practices at 1799 Hamilton Ave, San Jose, CA 95125. The listed phone number is (888) 530-4415.

What is Vivian Nguyen's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Vivian Nguyen enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Vivian Nguyen was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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.