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

Dr. Aaron Gordon Baker, MD

Individual provider Emergency Medicine Physician · NPI 1215968060

Dr. Aaron Gordon Baker, MD is an Emergency Medicine in San Luis Obispo, California. Graduated from University of California, San Francisco School of Medicine in 1989, 37 years ago. Practices with Kristopher Lyon, MD and Rachel May, MD, a Medical Corporation, a 4-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
University of California, San Francisco 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

1 Grand Ave Campus Health And Well Being Bldg 27
San Luis Obispo, CA 93407-9000
Phone: (805) 756-1211
Fax: (805) 756-5298
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 G70132 (CA)

Record details

NPI number1215968060
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 6, 2006
Last updated in NPPESFebruary 19, 2016

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Kristopher Lyon, Md And Rachel May, Md, A Medical Corporation — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in San Luis Obispo