CHRISTOPHER NGUYEN DO MD A PROFESSIONAL CORPORATION
NPI 1043343650
Specialist in San Jose, CA
About Christopher Nguyen Do Md A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER NGUYEN DO MD A PROFESSIONAL CORPORATION (NPI 1043343650) is a healthcare organization registered as a specialist in San Jose, California and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through December 9, 2026 and lists Christopher Nguyen Do, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Christopher Nguyen Do Md A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Christopher Nguyen Do MD A Professional Corporation, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 05D2204843
Christopher Do MD A Professional Corporation · San Jose, CAFrequently 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 Christopher Nguyen Do MD A Professional Corporation's NPI number?
The NPI number for Christopher Nguyen Do MD A Professional Corporation is 1043343650. It was assigned to this organization in the NPPES registry on March 13, 2007.
Where is Christopher Nguyen Do MD A Professional Corporation located?
Christopher Nguyen Do MD A Professional Corporation is located at 1569 Lexann Ave Suite 206, San Jose, CA 95121. The listed phone number is (408) 531-8808.
What is Christopher Nguyen Do MD A Professional Corporation's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Christopher Nguyen Do MD A Professional Corporation enrolled in Medicare?
Yes. Christopher Nguyen Do MD A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Christopher Nguyen Do MD A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Christopher Nguyen Do MD A Professional Corporation. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Christopher Nguyen Do MD A Professional Corporation hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2204843) is associated with this NPI, valid through December 9, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Christopher Nguyen Do MD A Professional Corporation was last updated on November 10, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Christopher Nguyen Do Md A Professional Corporation · NPI 1043343650
Specialist organization in San Jose, California. Organization record, active in the CMS NPPES registry since March 13, 2007.
## Identity
- **NPI:** 1043343650 (Entity type: Organization)
- **Enumerated:** March 13, 2007
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Christopher Do, PRESIDENT
## Practice location
- **Address:** 1569 LEXANN AVE, SUITE 206, San Jose, CA 95121-1794
- **Phone:** (408) 531-8808 · **Fax:** (408) 531-8940
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 10, 2010
- **Other identifiers:** Medicare UPIN G60213 (CA); Medicaid 00A628770 (CA); Medicare PIN CX491A (CA); and 2 more
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1043343650) · Data from the CMS NPPES public registry.