John Campbell Girdler

John Campbell Girdler is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Fallbrook, CA, registered in the NPPES registry with NPI 1881871127 since 2008.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1881871127
Entity type	Individual (Type 1)
Name	John Campbell Girdler
Sex	Male
Practice address	Fallbrook, CA, 92028
Phone	7604582677
Enumeration date	2008-01-29
Last updated in NPPES	2008-01-29

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	—	—

Copy-ready billing details

Provider: John Girdler
NPI: 1881871127
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Fallbrook, CA, 92028

Verify this record

Cross-check NPI 1881871127 against the authoritative CMS record: view John Campbell Girdler on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1881871127 active?

Yes — as of the latest NPPES snapshot, NPI 1881871127 is active (record last updated 2008-01-29).

How do I verify John Girdler's NPI record?

Cross-check NPI 1881871127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-01-29.