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HEATHER I DIAZ LMHC
NPI 1578883757
Counselor - Mental Health in Lynnwood, WA

Active since June 10, 2010PECOS Enrolled
5108 196TH ST SW STE 350, LYNNWOOD, WA 98036(425) 582-2041(425) 527-0468 Get Directions Write a Review

NPPES record last updated: November 4, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 4, 2025, Oct 7, 2025 (2 updates tracked since 2025).

About Heather I Diaz Lmhc NPPES

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

HEATHER I DIAZ LMHC (NPI 1578883757) is an individual mental health provider in Lynnwood, Washington and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lakewood, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1578883757
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameHEATHER I DIAZCredential: LMHC
Location Address5108 196TH ST SW STE 350Lynnwood, WA 98036-6169
Mailing Address5650 Thistle DrPrescott, AZ 86305-6710 · (425) 582-2041 · Fax (425) 527-0468
Phone(425) 582-2041
Fax(425) 527-0468
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateJune 10, 2010
Last NPPES UpdateNovember 4, 20252 updates tracked since enumeration
NPPES CertifiedNovember 4, 2025
✔ NPI 1578883757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
5108 196TH ST SW STE 350, Lynnwood, WA 98036
Open in Google Maps ↗

Secondary Practice Location 1

Location 19485 W Colfax AveLakewood, CO 80215-3918 · Phone (303) 432-5200

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Heather I Diaz Lmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224526934
PECOS Enrollment IDI20251023004413
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 Heather Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pacific Mental Health LLC
Same address
Mental Health
5108 196TH ST SW STE 350
Lynnwood, WA 98036
  • Reassigned Medicare billing, Washington enrollment
  • 21 clinicians in this Medicare group
NPI 1255987368 (425) 582-2041

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

NICOLE CONNER
Social Worker (Clinical)
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
PACIFIC MENTAL HEALTH LLC
Counselor (Mental Health)
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
GABRIEL DREW GUTH
Counselor
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
GILLIAN M HALLISSEY LMHCA
Counselor
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
KATIE S ROSKILLY LMHCA
Counselor
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
MORGAN BOLING LSWAIC
Counselor
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
SAVANNAH TV STANCIEL LSWAIC
Social Worker (Clinical)
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041
ADRIANA M REEDY LSWAIC
Social Worker (Clinical)
5108 196TH ST SW STE 350
LYNNWOOD, WA 98036
Snohomish County (425) 582-2041

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 1578883757. It was assigned to this individual provider in the NPPES registry on June 10, 2010.

Where is Heather Diaz located?

Heather Diaz practices at 5108 196th St SW Ste 350, Lynnwood, WA 98036. The listed phone number is (425) 582-2041.

What is Heather Diaz's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Heather Diaz enrolled in Medicare?

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

Which organization bills Medicare for Heather Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Heather Diaz reassigns Medicare benefits to Pacific Mental Health LLC (Lynnwood, WA). 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 Heather Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Heather Diaz accept?

Health plans from Providence Health Plan 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 November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.