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ERIN WESTMARK DNP, ARNP
NPI 1790674067
Nurse Practitioner in Tacoma, WA

Active since July 01, 2025PECOS EnrolledAccepts Medicare Assignment
401 N 10TH ST, TACOMA, WA 98403(253) 579-5934 Get Directions Write a Review

NPPES record last updated: August 1, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Erin Westmark Dnp, Arnp NPPES

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

ERIN WESTMARK DNP, ARNP (NPI 1790674067) is an individual nurse practitioner in Tacoma, Washington, licensed in Washington (AP70016466) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with Tacoma General Allenmore Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1790674067
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameERIN WESTMARKCredential: DNP, ARNP
Location Address401 N 10TH STTacoma, WA 98403-2947
Mailing Address401 N 10th StTacoma, WA 98403-2947 · (253) 579-5934
Phone(253) 579-5934
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJuly 1, 2025
Last NPPES UpdateAugust 1, 2025
NPPES CertifiedAugust 1, 2025
✔ NPI 1790674067 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in WA · AP70016466
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 70016466-NP (WA)
401 N 10TH ST, Tacoma, WA 98403
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Accepted Insurance

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

Erin Westmark Dnp, 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 ID6709385834
PECOS Enrollment IDI20250815003861
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 Erin Westmark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington Gastroenterology PLLC
2.4 mi
Gastroenterology
2202 S CEDAR ST STE 330
Tacoma, WA 98405
  • Reassigned Medicare billing, Washington enrollment
  • 148 clinicians in this Medicare group
NPI 1306364401 (253) 272-5127

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Tacoma General Allenmore Hospital

Acute Care Hospitals · Tacoma, WA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500129
Location315 S Mlk Jr WayTacoma, WA 98405 · Pierce County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98403 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 Erin Westmark's NPI number?

The NPI number for Erin Westmark is 1790674067. It was assigned to this individual provider in the NPPES registry on July 1, 2025.

Where is Erin Westmark located?

Erin Westmark practices at 401 N 10th St, Tacoma, WA 98403. The listed phone number is (253) 579-5934.

What is Erin Westmark's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Erin Westmark enrolled in Medicare?

Yes. Erin Westmark 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 organization bills Medicare for Erin Westmark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Westmark reassigns Medicare benefits to Washington Gastroenterology PLLC (Tacoma, WA). 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 Erin Westmark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Erin Westmark accept?

Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Erin Westmark 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.

Is Erin Westmark affiliated with any hospitals?

According to CMS data, Erin Westmark is affiliated with Tacoma General Allenmore Hospital.

When was this NPI record last updated?

The NPPES record for Erin Westmark was last updated on August 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.