Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Tan The Nguyen, MD

Individual provider Internal Medicine Physician · NPI 1609839299

Dr. Tan The Nguyen, MD is an Internal Medicine in Garden Grove, California. Qualified in 1988, 38 years ago. Works from 5 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
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

12865 Main St Ste 105
Garden Grove, CA 92840-8205
Phone: (800) 768-1977
Fax: (800) 768-1977
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 508 S Brookhurst St, Anaheim, CA 92804 — (800) 760-5520
  • 508 S Brookhurst St, Anaheim, CA 92804 — (800) 760-5520
  • 8700 Warner Ave Ste 270, Fountain Valley, CA 92708-3212 — (800) 560-9999
  • 7514 Girard Ave, La Jolla, CA 92037-5149 — (858) 754-1114

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G67119 (CA)

Record details

NPI number1609839299
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESJuly 22, 2021
Certification dateJuly 22, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Garden Grove