Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Allison Ro-Yao Tzeng, MD

Individual provider Internal Medicine Physician · NPI 1205575487

Dr. Allison Ro-Yao Tzeng, MD is a Hospitalist in San Francisco, California. Graduated from University of Vermont College of Medicine in 2022, 4 years ago. Practices with Regents of the University of California, a 717-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Pennsylvania.

Years since qualifying
4
Trained at
University of Vermont College of Medicine
Licensed in
CA, PA
In the registry since
2022
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

521 Parnassus Ave
San Francisco, CA 94143-2206
Phone: (415) 476-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3401 N Broad St, Philadelphia, PA 19140-5189 — (800) 836-7536

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A203094 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT226628 (PA)

Record details

NPI number1205575487
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 3, 2022
Last updated in NPPESJune 10, 2025
Certification dateJune 10, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 2022 (4 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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