KATIE MICHELLE ARMBRUSTER PA-C
NPI 1942816186
Physician Assistant in Bellingham, WA

Q: What is Katie Armbruster's NPI number?

The NPI number for Katie Armbruster is 1942816186. It was assigned to this individual provider in the NPPES registry on September 22, 2020. The provider is also known as Katie Michelle Knudsen.

Q: What is Katie Armbruster's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Katie Armbruster was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since September 22, 2020PECOS EnrolledAccepts Medicare Assignment

80.97/100

CMS Quality Rating

4465 CORDATA PKWY STE 102, BELLINGHAM, WA 98226(360) 752-5280(360) 752-5282 Get Directions Write a Review

NPPES record last updated: November 20, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 20, 2025, May 9, 2023, Oct 2, 2020 and 1 more (4 updates tracked since 2020).

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About Katie Michelle Armbruster Pa-c NPPES

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

KATIE MICHELLE ARMBRUSTER PA-C (NPI 1942816186) is an individual physician assistant in Bellingham, Washington, licensed in Washington (PA61103950) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1942816186

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameKATIE MICHELLE ARMBRUSTERCredential: PA-C

Location Address4465 CORDATA PKWY STE 102Bellingham, WA 98226-8037

Mailing Address939 Caroline StPort Angeles, WA 98362-3909

Phone(360) 752-5280

Fax(360) 752-5282

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateSeptember 22, 2020

Last NPPES UpdateNovember 20, 20254 updates tracked since enumeration

NPPES CertifiedNovember 20, 2025

✔ NPI 1942816186 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in WA · PA61103950

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

4465 CORDATA PKWY STE 102, Bellingham, WA 98226

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Other Names 1

Former Name (1)Katie Michelle Knudsen

Accepted Insurance

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

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

Katie Michelle Armbruster Pa-c 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 ID8224448832

PECOS Enrollment IDI20201111000888

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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

30 services18 patients

Hospital Affiliations CMS Care Compare

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

St Joseph Hospital

Acute Care Hospitals · Bellingham, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number500030

Location2901 Squalicum ParkwayBellingham, WA 98225 · Whatcom County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98226 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

$71.29 typical visit price

range $18.56 – $141.11

Typical copayment $17.82 (range $4.64 – $35.27)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.97/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

89.63

Promoting Interoperability

Improvement Activities

Cost

64.44

Other Providers at the Same Location NPPES 9

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

HARMONY R SCHROEDER MD

Obstetrics & Gynecology