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

MS. MARGARET DENISE TAHAN LCSW
NPI 1366411886
Social Worker - Clinical in Mather, CA

Active since March 16, 2006
10633 GRISSOM AVE, MATHER, CA 95655(916) 366-5427(916) 366-5441 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Margaret Denise Tahan Lcsw NPPES

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

MS. MARGARET DENISE TAHAN LCSW (NPI 1366411886) is an individual clinical provider in Mather, California, licensed in California (LCS20059) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1366411886
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. MARGARET DENISE TAHANCredential: LCSW
Location Address10633 GRISSOM AVEMather, CA 95655-4123
Mailing AddressPo Box 73221Davis, CA 95617-3221 · (916) 366-5427 · Fax (916) 366-5441
Fax(916) 366-5441
Sole ProprietorNo
Enumeration DateMarch 16, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1366411886 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CA · LCS20059
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
10633 GRISSOM AVE, Mather, CA 95655

Other Providers at the Same Location NPPES 10

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

Registered Nurse (Psychiatric/Mental Health, Adult)
10633 GRISSOM AVE
MATHER, CA 95655
Psychologist (Clinical)
10633 GRISSOM AVE
MATHER, CA 95655
Psychologist (Clinical)
10633 GRISSOM AVE
MATHER, CA 95655
Psychologist (Clinical)
10633 GRISSOM AVE, 116 MAT
MATHER, CA 95655
Clinical Neuropsychologist
10633 GRISSOM AVE, SACRAMENTO VA MENTAL HEALTH CLINIC
MATHER, CA 95655
Counselor (Addiction (Substance Use Disorder))
10633 GRISSOM AVE
MATHER, CA 95655
Psychiatry & Neurology (Psychiatry)
10633 GRISSOM AVE
MATHER, CA 95655
Psychologist
10633 GRISSOM AVE
MATHER, CA 95655

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 Margaret Tahan's NPI number?

The NPI number for Margaret Tahan is 1366411886. It was assigned to this individual provider in the NPPES registry on March 16, 2006.

Where is Margaret Tahan located?

Margaret Tahan practices at 10633 Grissom Ave, Mather, CA 95655. The listed phone number is (916) 366-5427.

What is Margaret Tahan's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Margaret Tahan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 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.