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TIONG YEE TAN LCSW
NPI 1275999690
Social Worker - Clinical in Newport Beach, CA

Active since January 14, 2016PECOS Enrolled
5000 BIRCH ST STE 3000, NEWPORT BEACH, CA 92660(949) 229-6943(949) 576-3913 Get Directions Write a Review

NPPES record last updated: November 16, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 16, 2024, Jun 19, 2020, Mar 17, 2018 and 3 more (6 updates tracked since 2016).

About Tiong Yee Tan Lcsw NPPES

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

TIONG YEE TAN LCSW (NPI 1275999690) is an individual clinical provider in Newport Beach, California, licensed in California (88693) and active in the NPI registry since January 2016. He is enrolled in Medicare PECOS and maintains a secondary practice location in Rancho Santa Margarita.

NPPES Registry Identity

NPI1275999690
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameTIONG YEE TANCredential: LCSW
Location Address5000 BIRCH ST STE 3000Newport Beach, CA 92660-2140
Mailing Address14271 Jeffrey Rd # 220Irvine, CA 92620-3405 · (949) 648-8305
Phone(949) 229-6943
Fax(949) 576-3913
Sole ProprietorNo
Enumeration DateJanuary 14, 2016
Last NPPES UpdateNovember 16, 20246 updates tracked since enumeration
NPPES CertifiedNovember 16, 2024
✔ NPI 1275999690 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 · 88693
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.
5000 BIRCH ST STE 3000, Newport Beach, CA 92660
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Other Names 1

Other Name (5)Joshua Tan

Secondary Practice Location 1

Location 130211 Avenida De Las Bandera Ste 200Rancho Santa Margarita, CA 92688-2159 · Phone (877) 421-1711 · Fax (949) 576-3913

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tiong Yee Tan 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 Tiong Yee Tan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grow Healthcare Group PC
340 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 92660 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 20

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

JA HOSPICE
Hospice Care, Community Based
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (925) 222-0114
DIANA VALENCIA ASW
Social Worker (Clinical)
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711
DR. TAIGA SUZUKI D.C
Chiropractor
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (917) 622-9837
ELIZABETH DELGADO MORALES LMFT
Counselor (Mental Health)
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711
CARLOS JAVIER LEDEZMA GONZALEZ ASW
Social Worker
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711
SAMUEL ZAVALA ACSW
Social Worker (Clinical)
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711
JAZMIN RUBIO ASW
Social Worker (Clinical)
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711
JACKLYN PRICELLA SAUCEDO LCSW
Social Worker (Clinical)
5000 BIRCH ST STE 3000
NEWPORT BEACH, CA 92660
Orange County (877) 421-1711

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 Tiong Yee Tan's NPI number?

The NPI number for Tiong Yee Tan is 1275999690. It was assigned to this individual provider in the NPPES registry on January 14, 2016. The provider is also known as Joshua Tan.

Where is Tiong Yee Tan located?

Tiong Yee Tan practices at 5000 Birch St Ste 3000, Newport Beach, CA 92660. The listed phone number is (949) 229-6943.

What is Tiong Yee Tan's specialty?

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

Is Tiong Yee Tan enrolled in Medicare?

Yes. Tiong Yee Tan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Tiong Yee Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tiong Yee Tan 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 Tiong Yee Tan'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 Tiong Yee Tan was last updated on November 16, 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.