DR. HUU NGOC NGUYEN D.O.
NPI 1811966492
Internal Medicine in Walnut Creek, CA
About Dr. Huu Ngoc Nguyen D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HUU NGOC NGUYEN D.O. (NPI 1811966492) is an individual internal medicine provider in Walnut Creek, California, licensed in California (20A9220) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Huu Ngoc Nguyen D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Huu Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Mateo, CA 94403
- Reassigned Medicare billing, California enrollment
- 430 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94596 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Huu Nguyen's NPI number?
The NPI number for Huu Nguyen is 1811966492. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Huu Nguyen located?
Huu Nguyen practices at 1990 N California Blvd Suite 400 Vep Health Care, Inc, Walnut Creek, CA 94596. The listed phone number is (925) 225-5837.
What is Huu Nguyen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Huu Nguyen enrolled in Medicare?
Yes. Huu Nguyen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Huu Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Huu Nguyen reassigns Medicare benefits to 3 organizations: Permanente Medical Group Inc (Richmond, CA), County Of San Mateo (San Mateo, CA) and Inpatient Specialists Of California, PC (San Bernardino, CA). Each 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 Huu 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 Huu Nguyen was last updated on March 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Huu Ngoc Nguyen, D.O. · NPI 1811966492
Internal Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1811966492 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 20A9220 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1990 N CALIFORNIA BLVD, SUITE 400 VEP HEALTH CARE, INC, Walnut Creek, CA 94596
- **Phone:** (925) 225-5837 · **Fax:** (925) 225-5838
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1235226531, Richmond, CA); County Of San Mateo (NPI 1831268580, San Mateo, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 24, 2015
- **Other identifiers:** Medicare ID-Type Unspecified 00A322201; Medicare UPIN H52197
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Source: [NPI Profile](https://npiprofile.com/npi/1811966492) · Data from the CMS NPPES public registry.