Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Thanh-Lan Trong Quan, MD

Individual provider Ophthalmology Physician · NPI 1831133511

Thanh-Lan Trong Quan, MD is an Ophthalmology in Westminster, California. Graduated from University of California, Geffen School of Medicine in 1989, 37 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
University of California, Geffen 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

10362 Bolsa Ave Ste 201
Westminster, CA 92683
Phone: (714) 531-4804
Fax: (714) 531-8232
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence G69821 (CA)

Record details

NPI number1831133511
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 15, 2006
Last updated in NPPESApril 8, 2008

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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