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

Mark Steven Agness, MD

Individual provider Family Medicine Physician · NPI 1609816743

Mark Steven Agness, MD is a Family Medicine Physician in Marysville, 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

726 4th St
Marysville, CA 94901
Phone: (530) 749-4300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G68116 (CA)

Record details

NPI number1609816743
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESAugust 27, 2007
Mailing address2100 Powell St, Ste 900, Emeryville, CA 94608-1826

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