NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Philip A Koestler, LPC

School Psychologist in Eau Claire, WI · enumerated 2006.

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

National Provider Identifier

1902812753

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Philip A Koestler
Credential LPC
Sex Male
Practice address 3119 Golf Rd, Eau Claire, WI, 54701
Fax (715) 832-6680
Enumeration date Aug 1, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 686-125 (WI) Secondary
103TS0200X School Psychologist Behavioral Health & Social Service Providers · License K234000050327 (WI) Primary
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier Type State Issuer
39285200 Medicaid WI -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Philip Koestler practice?
The practice location on file with NPPES is in Eau Claire, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Philip Koestler?
The National Provider Identifier (NPI) for Philip Koestler is 1902812753, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.