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

Tan Khac Nguyen, MD

Individual provider Procedural Dermatology Physician · NPI 1144273491

Tan Khac Nguyen, MD is an Internal Medicine in Upland, California. Qualified in 1991, 35 years ago. Practices with Advanced Skin Clinic and Surgery PC, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

1310 San Bernardino Rd Ste 207
Upland, CA 91786-4979
Phone: (909) 946-8600
Fax: (909) 946-8604
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Procedural Dermatology Physician (primary) Taxonomy 207NS0135X · Licence A70331 (CA)
Dermatology Physician Taxonomy 207N00000X · Licence A70331 (CA)

Record details

NPI number1144273491
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2006
Last updated in NPPESAugust 8, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Advanced Skin Clinic And Surgery Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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