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

Dr. Ashley John Herfindahl, DC

Individual provider Chiropractor · NPI 1770625733

Dr. Ashley John Herfindahl, DC is registered under Chiropractic in San Diego, California. Graduated from Palmer College Chiropractic - West Sunnyvale in 1999, 27 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
Palmer College Chiropractic - West Sunnyvale
Licensed in
CA
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

438 Camino Del Rio S Ste 120
San Diego, CA 92108-3509 Not confirmed with CMS for 19 years — call before visiting
Phone: (619) 295-3885
Fax: (619) 295-3825
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC27238 (CA)

Record details

NPI number1770625733
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedFebruary 13, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCHIROPRACTIC
Medical schoolPALMER COLLEGE CHIROPRACTIC - WEST SUNNYVALE
Graduated 1999 (27 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 210 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

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