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

Ralph E Retherford MD Inc

Organization Family Medicine Physician · NPI 1952319816

Ralph E Retherford MD Inc provides Family Medicine Physician services in Sonora, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

16050 Via Este Rd
Sonora, CA 95370-8428 Not confirmed with CMS for 17 years — call before visiting
Phone: (209) 588-1424
Fax: (209) 588-1521
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A24305 (CA)

Record details

NPI number1952319816
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Ralph Retherford — Owner · (209) 588-1424
NPI enumeratedAugust 4, 2006
Last updated in NPPESOctober 22, 2008
Mailing address16050 Via Este Rd, Sonora, CA 95370

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