MARINA JOSIFF THOMAS
NPI 1386048403
Social Worker - Clinical in Carson, CA

Q: What is Marina Thomas's NPI number?

The NPI number for Marina Thomas is 1386048403. It was assigned to this individual provider in the NPPES registry on October 17, 2014.

Q: What is Marina Thomas's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Marina Thomas was last updated on October 8, 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.

Active since October 17, 2014PECOS Enrolled

1 CIVIC PLAZA DR, CARSON, CA 90745(213) 660-6876 Get Directions Write a Review

NPPES record last updated: October 8, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 8, 2024, Feb 29, 2016 (2 updates tracked since 2016).

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About Marina Josiff Thomas NPPES

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

MARINA JOSIFF THOMAS (NPI 1386048403) is an individual clinical provider in Carson, California, licensed in California (LCSW124979) and active in the NPI registry since October 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1386048403

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameMARINA JOSIFF THOMAS

Location Address1 CIVIC PLAZA DRCarson, CA 90745-2243

Mailing Address1426 254th StHarbor City, CA 90710-2715 · (213) 660-6876

Phone(213) 660-6876

Sole ProprietorYes

Enumeration DateOctober 17, 2014

Last NPPES UpdateOctober 8, 20242 updates tracked since enumeration

NPPES CertifiedOctober 8, 2024

✔ NPI 1386048403 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 · LCSW124979

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1 CIVIC PLAZA DR, Carson, CA 90745

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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)

Marina Josiff Thomas 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 Marina Thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grow Healthcare Group PC

316 mi

Mental Health

99 S ALMADEN BLVD STE 600
San Jose, CA 95113

Reassigned Medicare billing, California enrollment
3,139 clinicians in this Medicare group

NPI 1154994846 (408) 402-4385

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 90745 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 18

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

MRS. RENEE GRINNELL CAPOZZOLA MPT

Physical Therapist

1 CIVIC PLAZA DR, SUITE # 625
CARSON, CA 90745

Los Angeles County (310) 549-4500

MR. JOEL A AGACID JR. RCP

Respiratory Therapist, Certified

1 CIVIC PLAZA DR, SUITE 625
CARSON, CA 90745

Los Angeles County (310) 549-4500

MS. KIM MARIE ATWATER OTR

Occupational Therapist

1 CIVIC PLAZA DR, SUITE 625
CARSON, CA 90745

Los Angeles County (310) 549-4500

ELBA CHAVEZ RAMIREZ

Social Worker (Clinical)

1 CIVIC PLAZA DR
CARSON, CA 90745

Los Angeles County (310) 233-1568

MS. JYOTSNABEN PATEL MFT LICENSED

Marriage & Family Therapist

1 CIVIC PLAZA DR
CARSON, CA 90745

Los Angeles County (213) 944-1322

MR. RICK EGGERT P.T.A

Physical Therapy Assistant

1 CIVIC PLAZA DR, SUITE 625
CARSON, CA 90745

Los Angeles County (310) 549-4500

DEBRA SUSAN STERN M.P.T.

Physical Therapist

1 CIVIC PLAZA DR, SUITE 625
CARSON, CA 90745

Los Angeles County (805) 501-1756

LOS ANGELES COUNTY DEPARTMENT OF MENTAL HEALTH

Clinic/Center (Mental Health (Including Community Mental Health Center))

1 CIVIC PLAZA DR
CARSON, CA 90745

Los Angeles County (310) 668-6925

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 Marina Thomas's NPI number?

The NPI number for Marina Thomas is 1386048403. It was assigned to this individual provider in the NPPES registry on October 17, 2014.

Where is Marina Thomas located?

Marina Thomas practices at 1 Civic Plaza Dr, Carson, CA 90745. The listed phone number is (213) 660-6876.

What is Marina Thomas's specialty?

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

Is Marina Thomas enrolled in Medicare?

Yes. Marina Thomas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marina Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marina Thomas reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, 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 Marina Thomas'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 Marina Thomas was last updated on October 8, 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.