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

Walter J. Zajac, MD

Individual provider Gastroenterology Physician · NPI 1679651343

Walter J. Zajac, MD is a Gastroenterology Physician in Roseville, 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

1600 Eureka Rd
Roseville, CA 95661-3027
Phone: (916) 784-4000
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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 G63354 (CA)

Record details

NPI number1679651343
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESFebruary 27, 2009

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