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TAMMY THIENDZI TRAN LCSW
NPI 1477958965
Social Worker - Clinical in San Jose, CA

Active since October 27, 2014PECOS Enrolled
6620 VIA DEL ORO, SAN JOSE, CA 95119(408) 360-2350 Get Directions Write a Review

NPPES record last updated: September 3, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Tammy Thiendzi Tran Lcsw NPPES

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

TAMMY THIENDZI TRAN LCSW (NPI 1477958965) is an individual clinical provider in San Jose, California, licensed in California (125632) and active in the NPI registry since October 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477958965
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameTAMMY THIENDZI TRANCredential: LCSW
Location Address6620 VIA DEL OROSan Jose, CA 95119-1452
Mailing Address6620 Via Del OroSan Jose, CA 95119-1452 · (408) 360-2350
Phone(408) 360-2350
Sole ProprietorNo
Enumeration DateOctober 27, 2014
Last NPPES UpdateSeptember 3, 2024
NPPES CertifiedSeptember 3, 2024
✔ NPI 1477958965 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 · 125632
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.
6620 VIA DEL ORO, San Jose, CA 95119
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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)

Tammy Thiendzi Tran 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 Tammy Tran reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
14 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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 95119 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 $70.37 – $206.04
Typical copayment $0.00 (range $17.59 – $51.51)
Most-billed visit code NA
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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.

JONATHAN HOWARD SHIPLEY MD
Student in an Organized Health Care Education/Training Program
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (669) 245-0370
MR. HAKEEM MICHAEL WATKINS-OLADUNJOYE
Marriage & Family Therapist
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 284-5265
HECTOR RAMIREZ JR. LCSW
Social Worker (Clinical)
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 360-2300
JHEANETT ANGELES PORTOBANCO PSY35811
Psychologist
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 660-3218
DR. EMILY CHEN MD
Student in an Organized Health Care Education/Training Program
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 360-2382
MARIAH CARROLL DO
Psychiatry & Neurology (Psychiatry)
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 972-3000
LISA ARIETA HAYES LCSW
Social Worker (Clinical)
6620 VIA DEL ORO, #280
SAN JOSE, CA 95119
Santa Clara County (408) 287-6200
NIKITA MAHBUBANI LMFT
Marriage & Family Therapist
6620 VIA DEL ORO
SAN JOSE, CA 95119
Santa Clara County (408) 360-2300

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 Tammy Tran's NPI number?

The NPI number for Tammy Tran is 1477958965. It was assigned to this individual provider in the NPPES registry on October 27, 2014.

Where is Tammy Tran located?

Tammy Tran practices at 6620 Via Del Oro, San Jose, CA 95119. The listed phone number is (408) 360-2350.

What is Tammy Tran's specialty?

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

Is Tammy Tran enrolled in Medicare?

Yes. Tammy Tran is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Tammy Tran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Tran reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Tammy Tran'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 Tammy Tran was last updated on September 3, 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.