Dr. Ralph Retherford M.D.
About this NPIWhat this record shows.
NPI 1801043799 is registered to Dr. Ralph Retherford M.D., a Family Medicine practising at 20405 Lyons Bald Mtn Rd in Sonora, California. Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment. Dr. Ralph Retherford M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2008.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20080819000856Family PracticeCA
- I20180604001256Family PracticeTX
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Ralph Retherford M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Ralph Retherford M.D. directly at (209) 588-1424.
Frequently asked
Yes. NPI 1801043799 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (209) 588-1424.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Ralph Retherford M.D. is a Type-1 individual NPI.