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MARIEL ROSS
NPI 1417404450
Social Worker - Clinical in Arleta, CA

Active since September 07, 2016PECOS EnrolledAccepts Medicare Assignment
13507 CHASE ST, ARLETA, CA 91331(818) 941-6206 Get Directions Write a Review

NPPES record last updated: November 18, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 18, 2024, May 7, 2024, Mar 18, 2021 and 3 more (6 updates tracked since 2017).

About Mariel Ross NPPES

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

MARIEL ROSS (NPI 1417404450) is an individual clinical provider in Arleta, California, licensed in California (119328) and active in the NPI registry since September 2016. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1417404450
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARIEL ROSS
Location Address13507 CHASE STArleta, CA 91331-5724
Mailing Address13507 Chase StArleta, CA 91331-5724 · (818) 941-6206
Phone(818) 941-6206
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateSeptember 7, 2016
Last NPPES UpdateNovember 18, 20246 updates tracked since enumeration
NPPES CertifiedNovember 18, 2024
✔ NPI 1417404450 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 119328
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 ListedCase Manager/Care CoordinatorTaxonomy 171M00000X
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
13507 CHASE ST, Arleta, CA 91331
Open in Google Maps ↗

Secondary Practice Locations 3

Location 117707 Studebaker RdCerritos, CA 90703-2640 · Phone (562) 402-0688
Location 214659 Olive View DrSylmar, CA 91342-1652 · Phone (818) 485-0888
Location 31540 E Colorado StGlendale, CA 91205-1514 · Phone (818) 244-7257 · Fax (818) 243-5431

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mariel Ross is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981055464
PECOS Enrollment IDI20240109002828
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 Reassignments

2

Medicare enrollment records show Mariel Ross reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
1.0 mi
Health Maintenance Organization
13652 CANTARA ST
Panorama City, CA 91402
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1407888928 (818) 375-2000
Grow Healthcare Group PC
289 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 91331 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.

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 Mariel Ross's NPI number?

The NPI number for Mariel Ross is 1417404450. It was assigned to this individual provider in the NPPES registry on September 7, 2016.

Where is Mariel Ross located?

Mariel Ross practices at 13507 Chase St, Arleta, CA 91331. The listed phone number is (818) 941-6206.

What is Mariel Ross's specialty?

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

Is Mariel Ross enrolled in Medicare?

Yes. Mariel Ross is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mariel Ross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mariel Ross reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Panorama City, CA) and Grow Healthcare Group PC (San Jose, CA). Each 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 Mariel Ross'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 Mariel Ross was last updated on November 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.