DENNIS LEE WILLIAMS JR. LMFT
NPI 1043715840
Counselor - Mental Health in Fullerton, CA

Q: What is Dennis Williams's NPI number?

The NPI number for Dennis Williams is 1043715840. It was assigned to this individual provider in the NPPES registry on March 26, 2018.

Q: What is Dennis Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Dennis Williams was last updated on January 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 26, 2018PECOS Enrolled

2800 MADISON AVE, FULLERTON, CA 92831(714) 234-0906 Get Directions Write a Review

NPPES record last updated: January 11, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 11, 2021, Mar 26, 2018 (2 updates tracked since 2018).

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About Dennis Lee Williams Jr. Lmft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DENNIS LEE WILLIAMS JR. LMFT (NPI 1043715840) is an individual mental health provider in Fullerton, California and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043715840

Entity TypeIndividualMale

Primary Taxonomy101YM0800X

Provider Legal NameDENNIS LEE WILLIAMS JR.Credential: LMFT

Location Address2800 MADISON AVEFullerton, CA 92831-2210

Mailing Address2601 E Chapman Ave Ste 111Fullerton, CA 92831-3737 · (714) 234-0906

Phone(714) 234-0906

Sole ProprietorNo

Enumeration DateMarch 26, 2018

Last NPPES UpdateJanuary 11, 20212 updates tracked since enumeration

NPPES CertifiedJanuary 11, 2021

✔ NPI 1043715840 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

2800 MADISON AVE, Fullerton, CA 92831

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dennis Lee Williams Jr. Lmft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dennis Williams's NPI number?

The NPI number for Dennis Williams is 1043715840. It was assigned to this individual provider in the NPPES registry on March 26, 2018.

Where is Dennis Williams located?

Dennis Williams practices at 2800 Madison Ave, Fullerton, CA 92831. The listed phone number is (714) 234-0906.

What is Dennis Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Dennis Williams enrolled in Medicare?

Yes. Dennis Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Dennis Williams was last updated on January 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.