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

Andrew Ryan Lai, MD

Individual provider Internal Medicine Physician · NPI 1861666281

Andrew Ryan Lai, MD is an Internal Medicine in San Francisco, California. Graduated from Warren Alpert Medical School of Brown University in 2006, 20 years ago. Practices with Regents of the University of California, a 717-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Trained at
Warren Alpert Medical School of Brown University
Licensed in
CA
In the registry since
2008
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

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone: (415) 476-6760
Fax: (415) 502-1963
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A103036 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A103036 (CA)

Record details

NPI number1861666281
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 16, 2008
Last updated in NPPESJanuary 24, 2022
Certification dateJanuary 24, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 2006 (20 years in practice)
Group practice Regents Of The University Of California — 717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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