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

XYLEM NILSEN LCSW, QMHP
NPI 1447655105
Social Worker in Portland, OR

Q: What is Xylem Nilsen's NPI number?

The NPI number for Xylem Nilsen is 1447655105. It was assigned to this individual provider in the NPPES registry on October 23, 2014. The provider is also known as Kari Anne Nilsen.

Q: What is Xylem Nilsen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Xylem Nilsen was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since October 23, 2014PECOS EnrolledAccepts Medicare Assignment

4411 SW VERMONT ST, PORTLAND, OR 97219(503) 494-9992 Get Directions Write a Review

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 15, 2026, May 12, 2025, Nov 19, 2024 (3 updates tracked since 2024).

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About Xylem Nilsen Lcsw, Qmhp NPPES

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

XYLEM NILSEN LCSW, QMHP (NPI 1447655105) is an individual social worker in Portland, Oregon, licensed in Oregon (L11474) and active in the NPI registry since October 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1447655105

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameXYLEM NILSENCredential: LCSW, QMHP

Location Address4411 SW VERMONT STPortland, OR 97219-1020

Mailing Address4411 Sw Vermont StPortland, OR 97219-1020 · (503) 494-9992

Phone(503) 494-9992

Sole ProprietorYes

Medical School CMSOtherGraduated 2018

Enumeration DateOctober 23, 2014

Last NPPES UpdateOctober 15, 20263 updates tracked since enumeration

NPPES CertifiedOctober 15, 2026

✔ NPI 1447655105 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 OR · L11474

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.

4411 SW VERMONT ST, Portland, OR 97219

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Other Names 1

Former Name (1)Kari Anne Nilsen

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Xylem Nilsen Lcsw, Qmhp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133612716

PECOS Enrollment IDI20251202003341

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.

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.

SARAH KUPPENBENDER KONG FNP-C

Nurse Practitioner (Family)

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

UNIVERSITY PROFESSIONAL SERVICES

General Practice

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

SHERILYN M DESTEFANO MD

Family Medicine

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

ELIZABETH STEINER HAYWARD MD

Family Medicine

4411 SW VERMONT ST, OHSU GABRIEL PARK FAMILY HEALTH CENTER
PORTLAND, OR 97219

Multnomah County (503) 494-1900

JAN HAXBY RPH

Pharmacist

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-2098

MS. CLAIRE E. HULL PA-C

Physician Assistant

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

THEA J DENNIS-ARENDS MD

Family Medicine

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

FRANKLYN DAVID DORNFEST MD

Family Medicine

4411 SW VERMONT ST
PORTLAND, OR 97219

Multnomah County (503) 494-9992

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 Xylem Nilsen's NPI number?

The NPI number for Xylem Nilsen is 1447655105. It was assigned to this individual provider in the NPPES registry on October 23, 2014. The provider is also known as Kari Anne Nilsen.

Where is Xylem Nilsen located?

Xylem Nilsen practices at 4411 SW Vermont St, Portland, OR 97219. The listed phone number is (503) 494-9992.

What is Xylem Nilsen's specialty?

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

Is Xylem Nilsen enrolled in Medicare?

Yes. Xylem Nilsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Xylem Nilsen was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.