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

ROBERT LIBFELD M.D., M.S.W.
NPI 1093940991
Social Worker in Fairfield, CA

Q: What is Robert Libfeld's NPI number?

The NPI number for Robert Libfeld is 1093940991. It was assigned to this individual provider in the NPPES registry on May 20, 2009.

Q: What is Robert Libfeld'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 Robert Libfeld was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 May 20, 2009

2420 MARTIN RD STE 200, FAIRFIELD, CA 94534(707) 399-4520(707) 399-4521 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Robert Libfeld M.d., M.s.w. NPPES

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

ROBERT LIBFELD M.D., M.S.W. (NPI 1093940991) is an individual social worker in Fairfield, California, licensed in California (ASW139492) and active in the NPI registry since May 2009.

NPPES Registry Identity

NPI1093940991

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameROBERT LIBFELDCredential: M.D., M.S.W.

Location Address2420 MARTIN RD STE 200Fairfield, CA 94534-8610

Mailing Address2420 Martin Rd Ste 200Fairfield, CA 94534-8610 · (707) 399-4520 · Fax (707) 399-4521

Phone(707) 399-4520

Fax(707) 399-4521

Sole ProprietorNo

Enumeration DateMay 20, 2009

Last NPPES UpdateOctober 7, 2026

NPPES CertifiedOctober 7, 2026

✔ NPI 1093940991 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 · ASW139492

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2420 MARTIN RD STE 200, Fairfield, CA 94534

Open in Google Maps ↗

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.

MEGAN WINCHER

Adult Companion