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RUTH ANN VILLASENOR LCSW
NPI 1104343946
Social Worker - Clinical in San Diego, CA

Active since August 23, 2017PECOS Enrolled
480 ALTA ROAD, SAN DIEGO, CA 92179(619) 661-6500 Get Directions Write a Review

NPPES record last updated: August 26, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 26, 2021, Jul 17, 2018, Aug 23, 2017 (3 updates tracked since 2017).

About Ruth Ann Villasenor Lcsw NPPES

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

RUTH ANN VILLASENOR LCSW (NPI 1104343946) is an individual clinical provider in San Diego, California, licensed in California (77700) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104343946
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameRUTH ANN VILLASENORCredential: LCSW
Location Address480 ALTA ROADSan Diego, CA 92179
Mailing Address600 Anton Blvd, Fl 11Costa Mesa, CA 92626-7100 · (520) 400-0191
Phone(619) 661-6500
Sole ProprietorNo
Enumeration DateAugust 23, 2017
Last NPPES UpdateAugust 26, 20213 updates tracked since enumeration
NPPES CertifiedAugust 26, 2021
✔ NPI 1104343946 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 77700
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.
Also ListedSocial WorkerTaxonomy 104100000X · License LCSW77700 (CA)
480 ALTA ROAD, San Diego, CA 92179
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ruth Ann Villasenor 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.

Medicare Billing Reassignment

Medicare enrollment records show Ruth Villasenor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sud Specialty Group - Ca
438 mi
Addiction Medicine
4633 OLD IRONSIDES DR STE 304
Santa Clara, CA 95054
  • Reassigned Medicare billing, California enrollment
  • 1,607 clinicians in this Medicare group
NPI 1972138238 (323) 205-7088

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92179 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 $62.10 – $184.71
Typical copayment $0.00 (range $15.52 – $46.17)
Most-billed visit code NA
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
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 5

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

DR. CHARLES FIELDING MARSH M.D.
Psychiatry & Neurology (Psychiatry)
480 ALTA ROAD
SAN DIEGO, CA 92179
San Diego County (619) 661-6500
CORRECTIONS AND REHABILITATION-HEADQUARTERS
Pharmacy
480 ALTA ROAD, PHARMACY BUILDING ROOM 122
SAN DIEGO, CA 92179
San Diego County (619) 661-6500
DR. MALVERN C HOLLAND JR. ED.D.
Psychologist (Clinical)
480 ALTA ROAD, R.J. DONOVAN CORRECTIONAL FACILITY
SAN DIEGO, CA 92179
San Diego County (619) 955-2622
DR. ALAN GREG SPRINGER PHARM. D.
Pharmacist
480 ALTA ROAD
SAN DIEGO, CA 92179
San Diego County (619) 661-6500
DR. JOHN CHARLES PRESTON III M.D.
Psychiatry & Neurology (Psychiatry)
480 ALTA ROAD
SAN DIEGO, CA 92179
San Diego County (619) 661-6500

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 Ruth Villasenor's NPI number?

The NPI number for Ruth Villasenor is 1104343946. It was assigned to this individual provider in the NPPES registry on August 23, 2017.

Where is Ruth Villasenor located?

Ruth Villasenor practices at 480 Alta Road, San Diego, CA 92179. The listed phone number is (619) 661-6500.

What is Ruth Villasenor's specialty?

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

Is Ruth Villasenor enrolled in Medicare?

Yes. Ruth Villasenor is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ruth Villasenor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Villasenor reassigns Medicare benefits to Sud Specialty Group - Ca (Santa Clara, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ruth Villasenor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ruth Villasenor was last updated on August 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.