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DR. SHEILA M ADDISON PHD, LMFT
NPI 1255539128
Marriage & Family Therapist in Seattle, WA

Active since July 03, 2007Opted out of Medicare · through Jan 8, 2028
3250 AIRPORT WAY S STE 422, SEATTLE, WA 98134(510) 599-5467 Get Directions Write a Review

NPPES record last updated: June 5, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 5, 2026, Dec 6, 2023, Oct 12, 2016 (3 updates tracked since 2016).

About Dr. Sheila M Addison Phd, Lmft NPPES

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

DR. SHEILA M ADDISON PHD, LMFT (NPI 1255539128) is an individual marriage & family therapist in Seattle, Washington, licensed in California (49616) and active in the NPI registry since July 2007. She has opted out of Medicare through January 8, 2028.

NPPES Registry Identity

NPI1255539128
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameDR. SHEILA M ADDISONCredential: PHD, LMFT
Location Address3250 AIRPORT WAY S STE 422Seattle, WA 98134-2173
Mailing AddressPo Box 16745Seattle, WA 98116-0745 · (510) 599-5467
Phone(510) 599-5467
Sole ProprietorYes
Enumeration DateJuly 3, 2007
Last NPPES UpdateJune 5, 20263 updates tracked since enumeration
NPPES CertifiedJune 5, 2026
✔ NPI 1255539128 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Licenses✔ Licensed in CA · 49616✔ Licensed in WA · 61067042✔ Licensed in MA · 1897-MH-MF✔ Licensed in OR · T3610✔ Licensed in CT · 2765
Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

3250 AIRPORT WAY S STE 422, Seattle, WA 98134
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Sheila M Addison Phd, Lmft has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 8, 2024 through January 8, 2028.

Opt-Out Effective DateJanuary 8, 2024
Opt-Out In Effect ThroughJanuary 8, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES

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

ASHLEY MARIE LACY
Marriage & Family Therapist
3250 AIRPORT WAY S STE 422
SEATTLE, WA 98134
King County (206) 504-3581

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 Sheila Addison's NPI number?

The NPI number for Sheila Addison is 1255539128. It was assigned to this individual provider in the NPPES registry on July 3, 2007.

Where is Sheila Addison located?

Sheila Addison practices at 3250 Airport Way S Ste 422, Seattle, WA 98134. The listed phone number is (510) 599-5467.

What is Sheila Addison's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Sheila Addison enrolled in Medicare?

No. Sheila Addison has opted out of Medicare through January 8, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Sheila Addison was last updated on June 5, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.