MR. GLEN ANTONIO CLARK III
NPI 1952585218
Counselor - Addiction (Substance Use Disorder) in San Francisco, CA

Q: What is Glen Clark's NPI number?

The NPI number for Glen Clark is 1952585218. It was assigned to this individual provider in the NPPES registry on December 21, 2007.

Q: What is Glen Clark's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Glen Clark was last updated on December 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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 December 21, 2007

1301 PIERCE ST., SAN FRANCISCO, CA 94115(415) 563-8200(510) 644-2044 Get Directions Write a Review

NPPES record last updated: December 17, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 17, 2024, Oct 24, 2018 (2 updates tracked since 2018).

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About Mr. Glen Antonio Clark Iii NPPES

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

MR. GLEN ANTONIO CLARK III (NPI 1952585218) is an individual addiction (substance use disorder) provider in San Francisco, California and active in the NPI registry since December 2007. He maintains a secondary practice location in San Mateo.

NPPES Registry Identity

NPI1952585218

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameMR. GLEN ANTONIO CLARK III

Location Address1301 PIERCE ST.San Francisco, CA 94115

Mailing Address1153 Oak St.San Francisco, CA 94117 · (415) 431-9000 · Fax (415) 431-1813

Phone(415) 563-8200

Fax(510) 644-2044

Sole ProprietorNo

Enumeration DateDecember 21, 2007

Last NPPES UpdateDecember 17, 20242 updates tracked since enumeration

NPPES CertifiedDecember 17, 2024

✔ NPI 1952585218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

1301 PIERCE ST., San Francisco, CA 94115

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Secondary Practice Location 1

Location 1900 Laurel AveSan Mateo, CA 94401-4211 · Phone (650) 347-8088

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. LISA HAROL WOOD CAODC

Counselor

1301 PIERCE ST.
SAN FRANCISCO, CA 94115

San Francisco County (415) 553-8200

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 Glen Clark's NPI number?

The NPI number for Glen Clark is 1952585218. It was assigned to this individual provider in the NPPES registry on December 21, 2007.

Where is Glen Clark located?

Glen Clark practices at 1301 Pierce St., San Francisco, CA 94115. The listed phone number is (415) 563-8200.

What is Glen Clark's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Glen Clark was last updated on December 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.