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

Dr. James Alexander Thomas, MD, PHD

Individual provider Internal Medicine Physician · NPI 1639493430

Dr. James Alexander Thomas, MD, PHD is an Internal Medicine in Palo Alto, California. Graduated from University of Virginia School of Medicine in 2009, 17 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
17
Trained at
University of Virginia School of Medicine
Licensed in
CA
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

795 El Camino Real
Palo Alto, CA 94301-2302
Phone: (650) 321-4121
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A123299 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A123299 (CA)

Record details

NPI number1639493430
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMarch 23, 2010
Last updated in NPPESFebruary 16, 2021
Certification dateFebruary 16, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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