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MATIAS MASSARO
NPI 1184222143
Nurse Practitioner - Psychiatric/Mental Health in Spokane, WA

Active since October 13, 2020Opted out of Medicare · through Aug 8, 2026
522 W RIVERSIDE AVE STE 8072, SPOKANE, WA 99201(206) 350-9411(206) 207-2587 Get Directions Write a Review

NPPES record last updated: July 18, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 18, 2023, Oct 13, 2020 (2 updates tracked since 2020).

About Matias Massaro NPPES

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

MATIAS MASSARO (NPI 1184222143) is an individual psychiatric/mental health provider in Spokane, Washington, licensed in Washington (AP61191323) and active in the NPI registry since October 2020. He has opted out of Medicare through August 8, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1184222143
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameMATIAS MASSARO
Location Address522 W RIVERSIDE AVE STE 8072Spokane, WA 99201-0580
Mailing Address522 W Riverside Ave Ste 8072Spokane, WA 99201-0580 · (206) 350-9411 · Fax (206) 207-2587
Phone(206) 350-9411
Fax(206) 207-2587
Sole ProprietorYes
Enumeration DateOctober 13, 2020
Last NPPES UpdateJuly 18, 20232 updates tracked since enumeration
NPPES CertifiedJuly 18, 2023
✔ NPI 1184222143 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in WA · AP61191323
522 W RIVERSIDE AVE STE 8072, Spokane, WA 99201
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

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

Matias Massaro 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 August 8, 2022 through August 8, 2026.

Opt-Out Effective DateAugust 8, 2022
Opt-Out In Effect ThroughAugust 8, 2026Opt-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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99201 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
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.

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 Matias Massaro's NPI number?

The NPI number for Matias Massaro is 1184222143. It was assigned to this individual provider in the NPPES registry on October 13, 2020.

Where is Matias Massaro located?

Matias Massaro practices at 522 W Riverside Ave Ste 8072, Spokane, WA 99201. The listed phone number is (206) 350-9411.

What is Matias Massaro's specialty?

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

Is Matias Massaro enrolled in Medicare?

No. Matias Massaro has opted out of Medicare through August 8, 2026. 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.

What insurance does Matias Massaro accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Matias Massaro 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 Matias Massaro was last updated on July 18, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.