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Diane Kay Koester, RN, NP

Adult Health Nurse Practitioner in La Jolla, CA · enumerated 2008.

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

National Provider Identifier

1962663658

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Registry record

Entity type Individual (Type 1)
Name Diane Kay Koester
Credential RN, NP
Sex Female
Practice address 9834 Genesee Ave Ste 300, La Jolla, CA, 92037
Phone (858) 625-4488
Fax (858) 625-7995
Enumeration date Jun 24, 2008
Last updated in NPPES Jul 20, 2011

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP 11678 (CA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Diane Koester's NPI record?
Cross-check NPI 1962663658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1962663658 active?
Yes, as of the latest NPPES snapshot, NPI 1962663658 is active (record last updated 2011-07-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-20.