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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JULIA ANN HASSEN LCSW
NPI 1558222729
Social Worker - Clinical in Stanford, CA

Active since November 18, 2025PECOS Enrolled
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 7, 2026, Nov 18, 2025 (2 updates tracked since 2025).

About Julia Ann Hassen Lcsw NPPES

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

JULIA ANN HASSEN LCSW (NPI 1558222729) is an individual clinical provider in Stanford, California, licensed in California (LCSW133114) and active in the NPI registry since November 2025. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1558222729
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameJULIA ANN HASSENCredential: LCSW
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Phone(650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateNovember 18, 2025
Last NPPES UpdateAugust 7, 20262 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
✔ NPI 1558222729 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 · LCSW133114
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.
300 PASTEUR DR, Stanford, CA 94305
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1300 Pasteur DrStanford, CA 94305-2200 · Phone (650) 723-4000
Location 226485 Carmel Rancho Blvd Ste 5Carmel, CA 93923-8706 · Phone (831) 200-8295

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Julia Ann Hassen Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2961975537
PECOS Enrollment IDI20260625000059
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 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.

PRISTA CHARUWORN MD
Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Santa Clara County (650) 723-6661
ANDREW CHARLES PICEL M.D
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
MATTHEW A WRIGHT M.D. PH.D.
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. QUAZI ZUBAIR AL-TARIQ M.D.
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
ANGIE DEE MURKINS NP
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. JAMSHID GHAJAR MD PHD
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
SARA BAKHTARY M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Santa Clara County (650) 723-5252
YU KUANG LAI MD
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000

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 Julia Hassen's NPI number?

The NPI number for Julia Hassen is 1558222729. It was assigned to this individual provider in the NPPES registry on November 18, 2025.

Where is Julia Hassen located?

Julia Hassen practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Julia Hassen's specialty?

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

Is Julia Hassen enrolled in Medicare?

Yes. Julia Hassen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Julia Hassen was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.