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

Betty S Ahn, MD

Individual provider Emergency Medicine Physician · NPI 1902862089

Betty S Ahn, MD is an Emergency Medicine in Pasadena, California. Graduated from University of Southern California Keck School of Medicine in 2000, 26 years ago. Practices with Mission Viejo Emergency Medical Associates, Inc, a 26-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Trained at
University of Southern California Keck 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

100 W California Blvd
Pasadena, CA 91105-3010
Phone: (626) 397-3445
Fax: (626) 397-5643
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A77991 (CA)

Record details

NPI number1902862089
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESJune 5, 2008
Mailing addressPo Box 60259, Los Angeles, CA 90060-0259

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Mission Viejo Emergency Medical Associates, Inc. — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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