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

Dr. Ronald Ray Sarmiento Guzman, MD

Individual provider Internal Medicine Physician · NPI 1205061595

Dr. Ronald Ray Sarmiento Guzman, MD is a Hospitalist in Roseville, California. Qualified in 2003, 23 years ago. Practices with Sutter Valley Medical Foundation, a 2,464-clinician group and accepts Medicare assignment. Licensed in California and Michigan.

Years since qualifying
23
Licensed in
CA, MI
In the registry since
2009
Specialties on file
2
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

1 Medical Plaza Dr
Roseville, CA 95661
Phone: (916) 781-1927
Fax: (916) 781-1787
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence C153148 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301093716 (MI)

Record details

NPI number1205061595
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2009
Last updated in NPPESSeptember 7, 2018

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Sutter Valley Medical Foundation — 2464 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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