MS. MARIANNE PETTERSEN MSW LICSW
NPI 1477605343
Social Worker in Seattle, WA

Q: What is Marianne Pettersen's NPI number?

The NPI number for Marianne Pettersen is 1477605343. It was assigned to this individual provider in the NPPES registry on January 18, 2007.

Q: What is Marianne Pettersen's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: Is Marianne Pettersen enrolled in Medicare?

No. Marianne Pettersen has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Active since January 18, 2007Opted out of Medicare · through Apr 1, 2028

200 WEST MERCER ST, SUITE 200, SEATTLE, WA 98119(206) 284-4861 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Ms. Marianne Pettersen Msw Licsw NPPES

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

MS. MARIANNE PETTERSEN MSW LICSW (NPI 1477605343) is an individual social worker in Seattle, Washington, licensed in Washington (LW00004884) and active in the NPI registry since January 2007. She has opted out of Medicare through April 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1477605343

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameMS. MARIANNE PETTERSENCredential: MSW LICSW

Location Address200 WEST MERCER ST, SUITE 200Seattle, WA 98119

Mailing Address200 West Mercer St, Suite 200Seattle, WA 98119 · (206) 284-4861

Phone(206) 284-4861

Sole ProprietorNo

Enumeration DateJanuary 18, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1477605343 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in WA · LW00004884

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

200 WEST MERCER ST, Seattle, WA 98119

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Other Identifiers 2

OtherPE6331WA · Regence Blue Shield

Other0005211606WA · Aetna

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Ms. Marianne Pettersen Msw Licsw 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 April 1, 2016 through April 1, 2028.

Opt-Out Effective DateApril 1, 2016

Opt-Out In Effect ThroughApril 1, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

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 Marianne Pettersen's NPI number?

The NPI number for Marianne Pettersen is 1477605343. It was assigned to this individual provider in the NPPES registry on January 18, 2007.

Where is Marianne Pettersen located?

Marianne Pettersen practices at 200 West Mercer St Suite 200, Seattle, WA 98119. The listed phone number is (206) 284-4861.

What is Marianne Pettersen's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Marianne Pettersen enrolled in Medicare?

No. Marianne Pettersen has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Marianne Pettersen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.