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

Dr. John Deryl Adderson, MD

Individual provider Family Medicine Physician · NPI 1932149069

Dr. John Deryl Adderson, MD is a Family Practice in San Diego, California. Qualified in 1977, 49 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
49
Licensed in
CA
In the registry since
2006
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

6106 Regents Rd
San Diego, CA 92122-2245
Phone: (858) 625-2466
Fax: (858) 625-2041
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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 A34404 (CA)

Record details

NPI number1932149069
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 7, 2006
Last updated in NPPESNovember 18, 2020
Certification dateNovember 18, 2020
Mailing address6106 Regents Rd, San Diego, CA 92122-2245

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1977 (49 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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