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REUBEN JACK KESSLER ACSW
NPI 1447977418
Social Worker in San Francisco, CA

Active since October 20, 2022
671 HARRISON ST, SAN FRANCISCO, CA 94107(415) 281-5100(415) 861-0323 Get Directions Write a Review

NPPES record last updated: January 16, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 18, 2024, Oct 20, 2022 (2 updates tracked since 2022).

About Reuben Jack Kessler Acsw NPPES

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

REUBEN JACK KESSLER ACSW (NPI 1447977418) is an individual social worker in San Francisco, California and active in the NPI registry since October 2022. He maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1447977418
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameREUBEN JACK KESSLERCredential: ACSW
Location Address671 HARRISON STSan Francisco, CA 94107-1312
Mailing Address671 Harrison StSan Francisco, CA 94107-1312 · (415) 281-5100
Phone(415) 281-5100
Fax(415) 861-0323
Sole ProprietorYes
Enumeration DateOctober 20, 2022
Last NPPES UpdateJanuary 16, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 16, 2025
✔ NPI 1447977418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedCommunity Health WorkerTaxonomy 172V00000X
671 HARRISON ST, San Francisco, CA 94107
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Secondary Practice Location 1

Location 11182 Market St Ste 300San Francisco, CA 94102-4919 · Phone (415) 915-0505 · Fax (415) 915-0909

Other Providers at the Same Location NPPES 6

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

JACKSON M PIERCE PSS
Peer Specialist
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 960-7265
COLETTE LIU
Social Worker
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 369-4932
ANGELICA LAI LCSW
Social Worker (Clinical)
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 221-4810
BRENDAN MICHAEL KELLY
Peer Specialist
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 281-5100
JEANETTE ANITAMARIE SOTOMAYOR
Peer Specialist
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 629-5712
CAITLIN LUU
Social Worker (Clinical)
671 HARRISON ST
SAN FRANCISCO, CA 94107
San Francisco County (415) 309-7414

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 Reuben Kessler's NPI number?

The NPI number for Reuben Kessler is 1447977418. It was assigned to this individual provider in the NPPES registry on October 20, 2022.

Where is Reuben Kessler located?

Reuben Kessler practices at 671 Harrison St, San Francisco, CA 94107. The listed phone number is (415) 281-5100.

What is Reuben Kessler's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Reuben Kessler was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.