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Dian Forrester Koelzer, FNP

Family Nurse Practitioner in Folsom, CA · enumerated 2006 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1609979772

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Registry record

Entity type Individual (Type 1)
Name Dian Forrester Koelzer
Credential FNP
Sex Female
Practice address 2155 Iron Point Rd, Folsom, CA, 95630
Phone (916) 817-5659
Enumeration date Sep 6, 2006
Last updated in NPPES Jul 11, 2007

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 499424 (CA) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

How do I verify Dian Koelzer's NPI record?
Cross-check NPI 1609979772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609979772 active?
Yes, as of the latest NPPES snapshot, NPI 1609979772 is active (record last updated 2007-07-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-11.