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

Jason Robert Jeffery, MD

Individual provider Internal Medicine Physician · NPI 1427293836

Jason Robert Jeffery, MD is an Internal Medicine in Sonora, California. Graduated from Loma Linda University School of Medicine in 2007, 19 years ago. Practices with Sonora Community Hospital, a 136-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
19
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2008
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

690 Guzzi Ln Ste B
Sonora, CA 95370-5292
Phone: (209) 536-5060
Fax: (209) 588-9743
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A106462 (CA)

Record details

NPI number1427293836
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 14, 2008
Last updated in NPPESJuly 23, 2019
Mailing address2400 Moorpark Ave, Suite 220, San Jose, CA 95128

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Sonora Community Hospital — 136 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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