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

Ronald Lambert Van Roy, MD

Individual provider Radiation Oncology Physician · NPI 1720168586

Ronald Lambert Van Roy, MD is a Radiation Oncology Physician in Santa Rosa, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

121 Sotoyome St
Santa Rosa, CA 95405-4823
Phone: (707) 525-1150
Fax: (707) 525-4061
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Therapeutic Radiology Physician (primary) Taxonomy 2085R0203X · Licence C30218 (CA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence C30218 (CA)

Record details

NPI number1720168586
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address121 Sotoyome St, Santa Rosa, CA 95405-4823

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