DR. TUAN DANG NGUYEN DO
NPI 1164959185
Internal Medicine - Nephrology in Westminster, CA
About Dr. Tuan Dang Nguyen Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TUAN DANG NGUYEN DO (NPI 1164959185) is an individual nephrology provider in Westminster, California, licensed in California (20A18461) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Rosemead, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2017).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Tuan Dang Nguyen Do 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.
Medicare Billing Reassignments
7Medicare enrollment records show Tuan Nguyen reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westminster, CA 92683
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Kevin Pham MD Inc
- 8 clinicians in this Medicare group
Costa Mesa, CA 92627
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
Rosemead, CA 91770
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
Rosemead, CA 91770
- Reassigned Medicare billing, California enrollment
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94111
- Reassigned Medicare billing, California enrollment
- 407 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92683 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Tuan Nguyen's NPI number?
The NPI number for Tuan Nguyen is 1164959185. It was assigned to this individual provider in the NPPES registry on May 22, 2017.
Where is Tuan Nguyen located?
Tuan Nguyen practices at 8102 Westminster Blvd Ste E, Westminster, CA 92683. The listed phone number is (714) 808-3080.
What is Tuan Nguyen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Tuan Nguyen enrolled in Medicare?
Yes. Tuan Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tuan Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tuan Nguyen reassigns Medicare benefits to 7 organizations: Dan Le Cardiology (Westminster, CA), Kevin Pham, M.D., Inc (Orange, CA), Cornerhealth Medical Group Inc (Costa Mesa, CA), Wynn Medical Center (Rosemead, CA), Wynn Medical Center Nephrology (Rosemead, CA) and 2 more organizations, listed in the Medicare section above. 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 Tuan 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 Tuan Nguyen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Tuan Dang Nguyen, DO · NPI 1164959185
Nephrology physician in Westminster, California. Individual provider, active in the CMS NPPES registry since May 22, 2017.
## Identity
- **NPI:** 1164959185 (Entity type: Individual)
- **Enumerated:** May 22, 2017
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 20A18461 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 8102 WESTMINSTER BLVD STE E, Westminster, CA 92683-3363
- **Phone:** (714) 808-3080
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Dan Le Cardiology (NPI 1063096477, Westminster, CA); Kevin Pham, M.D., Inc (NPI 1578740775, Orange, CA); Cornerhealth Medical Group Inc (NPI 1194577981, Costa Mesa, CA); Wynn Medical Center (NPI 1801300298, Rosemead, CA); Wynn Medical Center Nephrology (NPI 1750139580, Rosemead, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Osteo Medicine Of New York Institute Of Technology, class of 2017
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1164959185) · Data from the CMS NPPES public registry.