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

Dr. Kathleen Walker Mayer, MD

Individual provider Internal Medicine Physician · NPI 1457488439

Dr. Kathleen Walker Mayer, MD is an Internal Medicine in Bakersfield, California. Graduated from University of Colorado School of Medicine, Aurora in 1997, 29 years ago. Licensed in California and Colorado.

Years since qualifying
29
Trained at
University of Colorado School of Medicine, Aurora
Licensed in
CA, CO
In the registry since
2007
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

4900 California Ave Fl 2
Bakersfield, CA 93309-7024
Phone: (617) 505-1520
Fax: (617) 928-8401
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C176095 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 37902 (CO)

Record details

NPI number1457488439
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 27, 2007
Last updated in NPPESJune 11, 2026
Certification dateJune 11, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, AURORA
Graduated 1997 (29 years in practice)
Accepts Medicare assignment Not indicated
Practice locations5 on file with Medicare

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