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

MARI ZOL SANTOS LCSW
NPI 1629613963
Social Worker - Clinical in Rancho Cucamonga, CA

Active since November 11, 2019PECOS Enrolled
9668 MILLIKEN AVE STE 104-183, RANCHO CUCAMONGA, CA 91730(626) 692-5954 Get Directions Write a Review

NPPES record last updated: March 8, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 8, 2024, May 7, 2023, Oct 21, 2020 and 1 more (4 updates tracked since 2019).

About Mari Zol Santos Lcsw NPPES

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

MARI ZOL SANTOS LCSW (NPI 1629613963) is an individual clinical provider in Rancho Cucamonga, California, licensed in California (114631) and active in the NPI registry since November 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629613963
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARI ZOL SANTOSCredential: LCSW
Location Address9668 MILLIKEN AVE STE 104-183Rancho Cucamonga, CA 91730-6137
Mailing Address9668 Milliken Ave Ste 104-183Rancho Cucamonga, CA 91730-6137 · (626) 692-5954 · Fax (909) 476-0138
Phone(626) 692-5954
Sole ProprietorNo
Enumeration DateNovember 11, 2019
Last NPPES UpdateMarch 8, 20244 updates tracked since enumeration
NPPES CertifiedMarch 8, 2024
✔ NPI 1629613963 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 · 114631
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.
9668 MILLIKEN AVE STE 104-183, Rancho Cucamonga, CA 91730
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mari Zol Santos 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 Mari Santos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grow Healthcare Group PC
331 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 91730 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 $59.60 – $179.42
Typical copayment $0.00 (range $14.90 – $44.85)
Most-billed visit code NA
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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 Mari Santos's NPI number?

The NPI number for Mari Santos is 1629613963. It was assigned to this individual provider in the NPPES registry on November 11, 2019.

Where is Mari Santos located?

Mari Santos practices at 9668 Milliken Ave Ste 104-183, Rancho Cucamonga, CA 91730. The listed phone number is (626) 692-5954.

What is Mari Santos's specialty?

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

Is Mari Santos enrolled in Medicare?

Yes. Mari Santos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mari Santos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mari Santos 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 Mari Santos'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 Mari Santos was last updated on March 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.