1. Home
  2. Directory
  3. California
  4. Livingston
  5. Social Worker
  6. NPI Profile

MRS. LETICIA GUILLEN LCSW
NPI 1194851642
Social Worker - Clinical in Livingston, CA

Active since February 26, 2007PECOS Enrolled
1140 MAIN ST, LIVINGSTON, CA 95334(209) 394-7913(209) 394-3660 Get Directions Write a Review

NPPES record last updated: May 12, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Leticia Guillen Lcsw NPPES

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

MRS. LETICIA GUILLEN LCSW (NPI 1194851642) is an individual clinical provider in Livingston, California, licensed in California (LCS29433) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194851642
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. LETICIA GUILLENCredential: LCSW
Location Address1140 MAIN STLivingston, CA 95334-1257
Mailing Address1140 Main StLivingston, CA 95334-1257 · (209) 394-7913 · Fax (209) 394-3660
Phone(209) 394-7913
Fax(209) 394-3660
Sole ProprietorNo
Enumeration DateFebruary 26, 2007
Last NPPES UpdateMay 12, 2014
✔ NPI 1194851642 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 · LCS29433
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.
1140 MAIN ST, Livingston, CA 95334
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Leticia Guillen Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95334 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $58.87 – $176.60
Typical copayment $0.00 (range $14.71 – $44.15)
Most-billed visit code NA
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MARIANA GUMM ASW
Social Worker
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7913
LIVINGSTON COMMUNITY HEALTH SERVICES
Clinic/Center (Federally Qualified Health Center (FQHC))
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7075
MS. MARTINA CISNEROS LCSW
Social Worker (Clinical)
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7913
STEPHANIE CASTILLO FNP
Nurse Practitioner
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-1325
DR. AFNAN AISHA QADEER M.D.
Family Medicine
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7913
ROHIT ARORA DO
Hospitalist
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7913
IVAN M PRADO
Health Educator
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 446-2771
LILIANA ZARAGOZA
Health Educator
1140 MAIN ST
LIVINGSTON, CA 95334
Merced County (209) 394-7913

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 Leticia Guillen's NPI number?

The NPI number for Leticia Guillen is 1194851642. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Where is Leticia Guillen located?

Leticia Guillen practices at 1140 Main St, Livingston, CA 95334. The listed phone number is (209) 394-7913.

What is Leticia Guillen's specialty?

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

Is Leticia Guillen enrolled in Medicare?

Yes. Leticia Guillen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Leticia Guillen was last updated on May 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.