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

Dr. James Florencio Dec Tamesis, MD

Individual provider Internal Medicine Physician · NPI 1568819050

Dr. James Florencio Dec Tamesis, MD is an Internal Medicine in Roseville, California. Qualified in 2013, 13 years ago. Practices with Sutter Valley Medical Foundation, a 2,464-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
13
Licensed in
CA
In the registry since
2016
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

2050 Blue Oaks Blvd
Roseville, CA 95747-6506
Phone: (916) 910-2400
Fax: (916) 910-2355
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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 A172259 (CA)

Record details

NPI number1568819050
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2016
Last updated in NPPESAugust 6, 2021
Certification dateAugust 6, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Sutter Valley Medical Foundation — 2464 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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