Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Marianne Stewart Johnston, PA-C

Individual provider Physician Assistant · NPI 1871724658

Mrs. Marianne Stewart Johnston, PA-C is a Physician Assistant in Renton, Washington. Qualified in 2005, 21 years ago. Practices with Stacey L Hiles MD PLLC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
21
Licensed in
WA
In the registry since
2009
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

17900 Talbot Rd S Ste 101
Renton, WA 98055-8212
Phone: (425) 235-9614
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA 60105502 (WA)

Record details

NPI number1871724658
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorYes
NPI enumeratedJuly 28, 2009
Last updated in NPPESNovember 30, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Stacey L Hiles Md Pllc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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