1. Home
  2. Directory
  3. California
  4. Fairfield
  5. Social Worker
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JAMES DAVID GARRETT SIMPSON
NPI 1093234056
Social Worker in Fairfield, CA

Active since September 11, 2017
275 BECK AVE, FAIRFIELD, CA 94533(707) 784-8081 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 28, 2026, Jun 5, 2026, Jun 23, 2023 and 6 more (9 updates tracked since 2017).

About James David Garrett Simpson NPPES

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

JAMES DAVID GARRETT SIMPSON (NPI 1093234056) is an individual social worker in Fairfield, California, licensed in California (138161) and active in the NPI registry since September 2017.

NPPES Registry Identity

NPI1093234056
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameJAMES DAVID GARRETT SIMPSON
Location Address275 BECK AVEFairfield, CA 94533-6804
Mailing Address275 Beck AveFairfield, CA 94533-6804 · (707) 784-8081
Phone(707) 784-8081
Sole ProprietorYes
Enumeration DateSeptember 11, 2017
Last NPPES UpdateJuly 28, 20269 updates tracked since enumeration
NPPES CertifiedJuly 28, 2026
✔ NPI 1093234056 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · 138161
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.
275 BECK AVE, Fairfield, CA 94533
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.

MRS. MELISSA ALBALOS RN, PHN
Registered Nurse (Community Health)
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8665
MR. KENNETH R EVANS
Marriage & Family Therapist
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8189
MRS. NIKKI L ANTHONY RN
Registered Nurse (Community Health)
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (800) 426-3452
MICHAEL G. JOGOPULOS L.C.S.W.
Social Worker
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8216
MARY KASHANI
Counselor
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8052
KYLIE HARMS FNP
Nurse Practitioner (Family)
275 BECK AVE, MS 9100
FAIRFIELD, CA 94533
Solano County (707) 784-8193
HEIDI NEMETH RN
Registered Nurse
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8654
VENETIA LAZENSKI
Social Worker
275 BECK AVE
FAIRFIELD, CA 94533
Solano County (707) 784-8828

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 James Simpson's NPI number?

The NPI number for James Simpson is 1093234056. It was assigned to this individual provider in the NPPES registry on September 11, 2017.

Where is James Simpson located?

James Simpson practices at 275 Beck Ave, Fairfield, CA 94533. The listed phone number is (707) 784-8081.

What is James Simpson'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 James Simpson was last updated on July 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.