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

Chet Sarnowski, DO

Individual provider Family Medicine Physician · NPI 1841348802

Chet Sarnowski, DO is a Family Medicine Physician in Fontana, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

9961 Sierra Ave
Fontana, CA 92335-6720
Phone: (909) 427-3910
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A7598 (CA)

Record details

NPI number1841348802
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 8, 2007
Last updated in NPPESSeptember 23, 2008
Mailing address9961 Sierra Ave, Fontana, CA 92335-6720

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