Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Tan Dinh Ngo, MD

Individual provider Internal Medicine Physician · NPI 1770503997

Dr. Tan Dinh Ngo, MD is an Internal Medicine in Westminster, California. Graduated from University of Southern California Keck School of Medicine in 1991, 35 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9431 Edinger Ave
Westminster, CA 92683-7425
Phone: (714) 839-8400
Fax: (714) 839-8230
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G75839L (CA)

Record details

NPI number1770503997
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 20, 2006
Last updated in NPPESNovember 30, 2022
Certification dateNovember 30, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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