MRS. MARIANNE STEWART JOHNSTON PA-C
NPI 1871724658
Physician Assistant in Renton, WA

Active since July 28, 2009PECOS EnrolledAccepts Medicare Assignment
17900 TALBOT RD S, SUITE 101, RENTON, WA 98055(425) 235-9614 Get Directions Write a Review

NPPES record last updated: November 30, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Marianne Stewart Johnston Pa-c NPPES

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

MRS. MARIANNE STEWART JOHNSTON PA-C (NPI 1871724658) is an individual physician assistant in Renton, Washington, licensed in Washington (PA 60105502) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS, is affiliated with Valley Medical Center, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1871724658
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMRS. MARIANNE STEWART JOHNSTONCredential: PA-C
Location Address17900 TALBOT RD S, SUITE 101Renton, WA 98055-8212
Mailing AddressPo Box 826Black Diamond, WA 98010-0826 · (425) 235-9614 · Fax (425) 235-1060
Sole ProprietorYes
Medical School CMSOtherGraduated 2005
Enumeration DateJuly 28, 2009
Last NPPES UpdateNovember 30, 2017
NPI 1871724658 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 · PA 60105502
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.
17900 TALBOT RD S, Renton, WA 98055

Accepted 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

Mrs. Marianne Stewart Johnston 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 ID6305984592
PECOS Enrollment IDI20091109000398
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 2

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
87 services27 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
47 services25 patients

Hospital Affiliations CMS Care Compare

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

Valley Medical Center

Acute Care Hospitals · Renton, WA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number500088
Location400 S 43rd StRenton, WA 98055 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98055 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
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers19 claims60 services$5.73 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 10

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

Clinic/Center
17900 TALBOT RD S, #101
RENTON, WA 98055
Clinic/Center (Primary Care)
17900 TALBOT RD S, SUITE 101
RENTON, WA 98055
Internal Medicine
17900 TALBOT RD S, #101
RENTON, WA 98055
Legal Medicine
17900 TALBOT RD S, #101
RENTON, WA 98055
Family Medicine
17900 TALBOT RD S, #102
RENTON, WA 98055
Psychologist
17900 TALBOT RD S, SUITE 102
RENTON, WA 98055
Dentist
17900 TALBOT RD S, STE #103
RENTON, WA 98055
Dentist (General Practice)
17900 TALBOT RD S, SUITE 103
RENTON, WA 98055

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 Marianne Johnston's NPI number?

The NPI number for Marianne Johnston is 1871724658. It was assigned to this individual provider in the NPPES registry on July 28, 2009.

Where is Marianne Johnston located?

Marianne Johnston practices at 17900 Talbot Rd S Suite 101, Renton, WA 98055. The listed phone number is (425) 235-9614.

What is Marianne Johnston's specialty?

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

Is Marianne Johnston enrolled in Medicare?

Yes. Marianne Johnston 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.

What insurance does Marianne Johnston accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Marianne Johnston 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 Marianne Johnston affiliated with any hospitals?

According to CMS data, Marianne Johnston is affiliated with Valley Medical Center.

When was this NPI record last updated?

The NPPES record for Marianne Johnston was last updated on November 30, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.