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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Zachary David Karjala Anderson, DO, MS

Student in an Organized Health Care Education/Training Program in Santa Rosa, CA · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1629604699

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Registry record

Entity type Individual (Type 1)
Name Dr. Zachary David Karjala Anderson
Credential DO, MS
Sex Male
Practice address Santa Rosa, CA, 95403
Phone (707) 393-4000
Enumeration date Mar 20, 2020
Last updated in NPPES Mar 20, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Zachary Anderson practice?
The practice location on file with NPPES is in Santa Rosa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Zachary Anderson?
The National Provider Identifier (NPI) for Zachary Anderson is 1629604699, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-20.