Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LONNIE FERGUSON LCSW
NPI 1457731655
Social Worker in San Francisco, CA

Q: What is Lonnie Ferguson's NPI number?

The NPI number for Lonnie Ferguson is 1457731655. It was assigned to this individual provider in the NPPES registry on June 2, 2015.

Q: What is Lonnie Ferguson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Lonnie Ferguson was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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 June 02, 2015

1263 MISSION ST, SAN FRANCISCO, CA 94103(628) 629-1861 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 28, 2026, Jun 3, 2021, May 27, 2021 and 2 more (5 updates tracked since 2017).

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About Lonnie Ferguson Lcsw NPPES

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

LONNIE FERGUSON LCSW (NPI 1457731655) is an individual social worker in San Francisco, California, licensed in California (120534) and active in the NPI registry since June 2015.

NPPES Registry Identity

NPI1457731655

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameLONNIE FERGUSONCredential: LCSW

Location Address1263 MISSION STSan Francisco, CA 94103-2705

Mailing Address1263 Mission StSan Francisco, CA 94103-2705 · (628) 629-1861

Phone(628) 629-1861

Sole ProprietorNo

Enumeration DateJune 2, 2015

Last NPPES UpdateSeptember 28, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1457731655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in CA · 120534

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 ListedSocial Worker · ClinicalTaxonomy 1041C0700X · License 120534 (CA)

1263 MISSION ST, San Francisco, CA 94103

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Other Providers at the Same Location NPPES 20

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

LOUIE RESNICK

Technician, Other