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KIMBERLY TAN MOSLEY-WILLIAMS
NPI 1851707947
Social Worker - Clinical in Los Angeles, CA

Active since July 09, 2014PECOS Enrolled
1000 N ALAMEDA ST STE 390, LOS ANGELES, CA 90012(213) 804-3139 Get Directions Write a Review

NPPES record last updated: September 17, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 17, 2024, Oct 27, 2023, Oct 2, 2019 and 1 more (4 updates tracked since 2015).

About Kimberly Tan Mosley-williams NPPES

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

KIMBERLY TAN MOSLEY-WILLIAMS (NPI 1851707947) is an individual clinical provider in Los Angeles, California, licensed in California (115581) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1851707947
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameKIMBERLY TAN MOSLEY-WILLIAMS
Location Address1000 N ALAMEDA ST STE 390Los Angeles, CA 90012-1804
Mailing AddressPo Box 1502Covina, CA 91722-0502 · (626) 472-6000
Phone(213) 804-3139
Sole ProprietorYes
Enumeration DateJuly 9, 2014
Last NPPES UpdateSeptember 17, 20244 updates tracked since enumeration
NPPES CertifiedSeptember 17, 2024
✔ NPI 1851707947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in CA · 115581✔ Licensed in CA · 66785
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
Also ListedCommunity Health WorkerTaxonomy 172V00000X · License 115581 (CA)
1000 N ALAMEDA ST STE 390, Los Angeles, CA 90012
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Secondary Practice Locations 2

Location 1950 N Ramona Blvd, Suite 1 &2San Jacinto, CA 92582-2567 · Phone (951) 487-2674
Location 213001 Ramona Blvd Ste EIrwindale, CA 91706-3752 · Phone (626) 472-6000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kimberly Tan Mosley-williams 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 Kimberly Mosley-williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Healthright 360
10 mi
Community/Behavioral Health
2650 E FOOTHILL BLVD
Pasadena, CA 91107
  • Reassigned Medicare billing, California enrollment
  • 76 clinicians in this Medicare group
NPI 1831640648 (626) 577-2261

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 90012 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 $62.96 – $187.60
Typical copayment $0.00 (range $15.74 – $46.90)
Most-billed visit code NA
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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 7

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

BRITTANIE FUENTES
Student in an Organized Health Care Education/Training Program
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 542-3844
MARIA ESTHER SIERRA
Psychologist (Clinical)
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 804-3139
DAVID JAVIER CONTRERAS
Counselor (Addiction (Substance Use Disorder))
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 804-3139
TIZEBT TAYE ALEMAYEHU
Social Worker (Clinical)
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (138) 043-1392
MS. TINA CAROL FIETSAM LCSW, PPSC
Social Worker (Clinical)
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 542-3838
ADRIANNA GAITAN
Day Training/Habilitation Specialist
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 804-3139
DEBRA DELGADO
Community Health Worker
1000 N ALAMEDA ST STE 390
LOS ANGELES, CA 90012
Los Angeles County (213) 804-3139

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 Kimberly Mosley-williams's NPI number?

The NPI number for Kimberly Mosley-williams is 1851707947. It was assigned to this individual provider in the NPPES registry on July 9, 2014.

Where is Kimberly Mosley-williams located?

Kimberly Mosley-williams practices at 1000 N Alameda St Ste 390, Los Angeles, CA 90012. The listed phone number is (213) 804-3139.

What is Kimberly Mosley-williams's specialty?

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

Is Kimberly Mosley-williams enrolled in Medicare?

Yes. Kimberly Mosley-williams is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kimberly Mosley-williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kimberly Mosley-williams reassigns Medicare benefits to Healthright 360 (Pasadena, 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 Kimberly Mosley-williams'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 Kimberly Mosley-williams was last updated on September 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.