Dennis Williams Mft

Dennis Williams Mft is a healthcare organization registered as Counseling Psychologist in Fullerton, CA, holding Type 2 (organization) NPI 1003549635 since 2022. The authorized official on file is Dennis Williams, Ceo/Lmft.

✓ Active NPI ✓ Valid NPI checksum

NPI	1003549635
Entity type	Organization (Type 2)
Legal business name	Dennis Williams Mft
Practice address	440 E COMMONWEALTH AVE STE 205, Fullerton, CA, 92832
Phone	7142340906
Enumeration date	2022-07-01
Last updated in NPPES	2022-07-01

Authorized official

Name	Dennis Williams
Title	Ceo/Lmft
Phone	7142340906

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
103TC1900X	Counseling Psychologist	Primary	—	—

Other identifiers

Identifier	Type	State	Issuer
1043715840	Other	CA	MENTAL HEALTH COUNSELING

Copy-ready billing details

Provider: Dennis Williams Mft
NPI: 1003549635
Taxonomy: 103TC1900X (Counseling Psychologist)
Address: 440 E COMMONWEALTH AVE STE 205, Fullerton, CA, 92832

Providers at this address

NPI	Name	Type	Specialty	Location
1982397030	Mending Hearts Center Inc.	Organization	Mental Health Counselor	Fullerton, CA

Verify this record

Cross-check NPI 1003549635 against the authoritative CMS record: view Dennis Williams Mft 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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-01. Verify at npiregistry.cms.hhs.gov.

Where is Dennis Williams Mft located?

The practice location on file with NPPES is in Fullerton, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-07-01.