Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Jennie Walker, MD

Individual provider Critical Access Hospital · NPI 1558371229

Jennie Walker, MD is registered under Critical Access Hospital in Mammoth Lakes, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

85 Sierra Park Rd
Mammoth Lakes, CA 93546-2073
Phone: (760) 934-3311
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A73644 (CA)
Critical Access Hospital Taxonomy 282NC0060X · Licence A73644 (CA)

Record details

NPI number1558371229
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 8, 2006
Last updated in NPPESJanuary 9, 2021
Certification dateJanuary 9, 2021

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients16
Services billed 25 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Other providers in Mammoth Lakes