John William Fletcher

John William Fletcher is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Perris, CA, registered in the NPPES registry with NPI 1639451206 since 2011. Practices at Perris Dental (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1639451206
Entity type	Individual (Type 1)
Name	John William Fletcher
Sex	Male
Practice address	2055 N PERRIS BLVD, Perris, CA, 92571
Phone	9516745354
Fax	9516745227
Enumeration date	2011-09-09
Last updated in NPPES	2011-09-09

Taxonomy & licenses

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

Copy-ready billing details

Provider: John Fletcher
NPI: 1639451206
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: 2055 N PERRIS BLVD, Perris, CA, 92571

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1972692051	Andres Dominguez	Individual	Pharmacist	Perris, CA
1861563413	Lida Poommipanit-Bajon	Individual	Family Medicine Physician	Perris, CA
1881738094	Washington Cullampe	Individual	General Practice Dentistry	Perris, CA
1164613733	Asa Ingram	Individual	Counselor	Perris, CA
1770758302	Randee Barraza	Individual	Counselor	Perris, CA
1952547341	Robyn Curl	Individual	Addiction (Substance Use Disorder) Counselor	Perris, CA
1063757771	Dulce Landazuri	Individual	Pharmacist	Perris, CA
1811236359	Zachary Martinez	Individual	Addiction (Substance Use Disorder) Counselor	Perris, CA

Verify this record

Cross-check NPI 1639451206 against the authoritative CMS record: view John William Fletcher 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

What specialty is John Fletcher?

John Fletcher is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-09-09.