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HEATHER JULIETA DIAZ MSW, LSWAIC
NPI 1477039139
Social Worker - Clinical in Seattle, WA

Active since July 16, 2018PECOS Enrolled
325 9TH AVE, SEATTLE, WA 98104(206) 520-5000 Get Directions Write a Review

NPPES record last updated: October 24, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 24, 2023, Jul 16, 2018 (2 updates tracked since 2018).

About Heather Julieta Diaz Msw, Lswaic NPPES

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

HEATHER JULIETA DIAZ MSW, LSWAIC (NPI 1477039139) is an individual clinical provider in Seattle, Washington, licensed in Washington (LW61389928) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477039139
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameHEATHER JULIETA DIAZCredential: MSW, LSWAIC
Location Address325 9TH AVESeattle, WA 98104-2420
Mailing AddressPo Box 50095Seattle, WA 98145-5095
Phone(206) 520-5000
Sole ProprietorNo
Enumeration DateJuly 16, 2018
Last NPPES UpdateOctober 24, 20232 updates tracked since enumeration
NPPES CertifiedOctober 24, 2023
✔ NPI 1477039139 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 WA · LW61389928
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.
325 9TH AVE, Seattle, WA 98104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Heather Julieta Diaz Msw, Lswaic 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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 $63.67 – $189.37
Typical copayment $0.00 (range $15.91 – $47.34)
Most-billed visit code NA
Established Patient
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
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.

SANDRA K WALKER ARNP
Nurse Practitioner (Acute Care)
325 9TH AVE
SEATTLE, WA 98104
King County (206) 598-0502
JULIA J VISSER DPT
Physical Therapist
325 9TH AVE, BOX 359920
SEATTLE, WA 98104
King County (206) 744-1675
GENIA J MONCADA
Pharmacist
325 9TH AVE, MAILSTOP 359912
SEATTLE, WA 98104
King County (206) 731-3219
JACQUELINE M. KIM LICSW, MSW
Social Worker (Clinical)
325 9TH AVE, BOX 359760
SEATTLE, WA 98104
King County (206) 744-8511
MS. DIANE E WHEELER MS, PA-C
Physician Assistant (Medical)
325 9TH AVE
SEATTLE, WA 98104
King County (206) 744-3000
AMELIA V. RIVERA
Physical Therapist
325 9TH AVE
SEATTLE, WA 98104
King County (206) 774-3300
TIMOTHY WILLIAM MENZA MD, PHD
Internal Medicine (Infectious Disease)
325 9TH AVE
SEATTLE, WA 98104
King County (206) 520-5000
DEMETRIOS TEREZAKIS
Occupational Therapist
325 9TH AVE
SEATTLE, WA 98104
King County (206) 744-6112

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 Heather Diaz's NPI number?

The NPI number for Heather Diaz is 1477039139. It was assigned to this individual provider in the NPPES registry on July 16, 2018.

Where is Heather Diaz located?

Heather Diaz practices at 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 520-5000.

What is Heather Diaz's specialty?

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

Is Heather Diaz enrolled in Medicare?

Yes. Heather Diaz is registered in the Medicare PECOS enrollment system.

What insurance does Heather Diaz accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Heather Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Heather Diaz was last updated on October 24, 2023. 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.