1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Nurse Practitioner
  6. NPI Profile

ALEXIS J MATTY ARNP
NPI 1104695659
Nurse Practitioner - Psychiatric/Mental Health in Seattle, WA

Active since December 26, 2023PECOS EnrolledAccepts Medicare Assignment
2600 SW HOLDEN ST, SEATTLE, WA 98126(206) 933-7117 Get Directions Write a Review

NPPES record last updated: September 10, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Alexis J Matty Arnp NPPES

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

ALEXIS J MATTY ARNP (NPI 1104695659) is an individual psychiatric/mental health provider in Seattle, Washington, licensed in Washington (ARNP.AP.70043641-NP) and active in the NPI registry since December 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1104695659
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameALEXIS J MATTYCredential: ARNP
Location Address2600 SW HOLDEN STSeattle, WA 98126-3505
Mailing AddressPo Box 2265Vashon, WA 98070-2265 · (702) 906-9064
Phone(206) 933-7117
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateDecember 26, 2023
Last NPPES UpdateSeptember 10, 2025
NPPES CertifiedSeptember 10, 2025
✔ NPI 1104695659 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 WA · ARNP.AP.70043641-NP
Also ListedRegistered NurseTaxonomy 163W00000X · License RN61136510 (WA)
2600 SW HOLDEN ST, Seattle, WA 98126
Open in Google Maps ↗

Other Names 1

Former Name (1)Alexis J Weimer

Other Identifiers 1

OtherARNP.AP.70043641-NPWA · Arnp

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexis J Matty Arnp 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 ID4789161399
PECOS Enrollment IDI20260123003294
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 Reassignments

2

Medicare enrollment records show Alexis Matty reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multicare Health System
12 mi
Family Medicine
222 STATE AVE N
Kent, WA 98030
  • Reassigned Medicare billing, Washington enrollment
  • 4,383 clinicians in this Medicare group
NPI 1811949928 (253) 372-7788
King County Public Hospital District No 2
15 mi
Internal Medicine
11521 NE 128TH ST, STE 100
Kirkland, WA 98034
  • Reassigned Medicare billing, Washington enrollment
  • 1,074 clinicians in this Medicare group
NPI 1548350713 (425) 899-6800

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 98126 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
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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 20

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

CHRISTINA IRENE CHANDLER M.ED
Counselor
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 390-8560
MS. MOLLY GROGAN LSWAIC CDPT MHP
Social Worker (Clinical)
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7000
ERIC SAILOR
Registered Nurse
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7200
EPUNA FUAIMAMAO NAEA-VAIOLO I
Counselor
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7199
SHANNON LYNN CARTER
Registered Nurse (Psychiatric/Mental Health, Adult)
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7000
SHAYNE MICHAEL JEFFERSON RN
Registered Nurse
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7299
QUINN ALEXIS GORDON
Student in an Organized Health Care Education/Training Program
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7000
ANESHIA MAHALIA HERNTON CNA
Behavior Technician
2600 SW HOLDEN ST
SEATTLE, WA 98126
King County (206) 933-7000

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 Alexis Matty's NPI number?

The NPI number for Alexis Matty is 1104695659. It was assigned to this individual provider in the NPPES registry on December 26, 2023. The provider is also known as Alexis J Weimer.

Where is Alexis Matty located?

Alexis Matty practices at 2600 SW Holden St, Seattle, WA 98126. The listed phone number is (206) 933-7117.

What is Alexis Matty's specialty?

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

Is Alexis Matty enrolled in Medicare?

Yes. Alexis Matty 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.

Which organizations bill Medicare for Alexis Matty's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexis Matty reassigns Medicare benefits to 2 organizations: Multicare Health System (Kent, WA) and King County Public Hospital District No 2 (Kirkland, WA). Each 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 Alexis Matty's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexis Matty accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Alexis Matty 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 Alexis Matty was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.