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

Calvin Olson, MD

Individual provider Gastroenterology Physician · NPI 1740230713

Calvin Olson, MD is a Gastroenterology Physician in Modesto, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

1409 E Briggsmore Ave
Modesto, CA 95355-2707
Phone: (209) 550-4750
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C39482 (CA)

Record details

NPI number1740230713
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESNovember 11, 2010
Mailing address600 Coffee Rd, Modesto, CA 95355-4201

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