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NINA ARMSTRONG
NPI 1629406558
Nurse Practitioner - Psychiatric/Mental Health in Portland, OR

Active since November 01, 2013PECOS Enrolled
700 NE MULTNOMAH ST STE 275, PORTLAND, OR 97232(503) 728-1380(503) 841-6343 Get Directions Write a Review

NPPES record last updated: October 25, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 25, 2019, Sep 17, 2019 (2 updates tracked since 2019).

About Nina Armstrong NPPES

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

NINA ARMSTRONG (NPI 1629406558) is an individual psychiatric/mental health provider in Portland, Oregon, licensed in Oregon (201908256NP-PP) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629406558
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameNINA ARMSTRONG
Location Address700 NE MULTNOMAH ST STE 275Portland, OR 97232-4103
Mailing Address700 Ne Multnomah St Ste 275Portland, OR 97232-4103
Phone(503) 728-1380
Fax(503) 841-6343
Sole ProprietorNo
Enumeration DateNovember 1, 2013
Last NPPES UpdateOctober 25, 20192 updates tracked since enumeration
✔ NPI 1629406558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in OR · 201908256NP-PP
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
700 NE MULTNOMAH ST STE 275, Portland, OR 97232
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nina Armstrong 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.

Medicare Billing Reassignment

Medicare enrollment records show Nina Armstrong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Willamette Health & Wellness LLC
Same address
Psychiatric/Mental Health
700 NE MULTNOMAH ST, SUITE 275
Portland, OR 97232
  • Reassigned Medicare billing, Oregon enrollment
  • 24 clinicians in this Medicare group
NPI 1093140188 (503) 729-1380

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97232 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
$90.51 typical visit price
range $58.99 – $176.88
Typical copayment $22.62 (range $14.74 – $44.22)
Most-billed visit code 99203
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
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 8

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

REBECCA PIERPONT PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
JACOB LAZEN
Social Worker (Clinical)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
MRS. JANETTE MARIE WILKINSON RN, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
ISAAC ANIHILI THELIN PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
TIFFANY SOMMER CNM, PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
RYAN C HOLLISTER LPC
Counselor (Professional)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
BENJAMIN RAJ ANDERSON PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380
ERICA CHRISTINE COHNSTAEDT
Nurse Practitioner (Psychiatric/Mental Health)
700 NE MULTNOMAH ST STE 275
PORTLAND, OR 97232
Multnomah County (503) 729-1380

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 Nina Armstrong's NPI number?

The NPI number for Nina Armstrong is 1629406558. It was assigned to this individual provider in the NPPES registry on November 1, 2013.

Where is Nina Armstrong located?

Nina Armstrong practices at 700 NE Multnomah St Ste 275, Portland, OR 97232. The listed phone number is (503) 728-1380.

What is Nina Armstrong's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Nina Armstrong enrolled in Medicare?

Yes. Nina Armstrong is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nina Armstrong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nina Armstrong reassigns Medicare benefits to Willamette Health & Wellness LLC (Portland, OR). 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 Nina Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nina Armstrong accept?

Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Nina Armstrong 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 Nina Armstrong was last updated on October 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.