Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Ronald A Stiller, MD

Individual provider Specialist · NPI 1154396109

Dr. Ronald A Stiller, MD is a Critical Care (Intensivists) in Walla Walla, Washington. Graduated from George Washington University School of Medicine in 1982, 44 years ago. Practices with Providence Health and Services - Washington, a 264-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania and Washington.

Years since qualifying
44
Trained at
George Washington University School of Medicine
Licensed in
PA, WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

401 W Poplar St
Walla Walla, WA 99362-2846
Phone: (095) 897-3320
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1116 Lancaster Ave, Pittsburgh, PA 15218-1013 — (412) 334-7949

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence MD60720548 (WA)
Specialist Taxonomy 174400000X · Licence MD029256E (PA)

Record details

NPI number1154396109
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 22, 2006
Last updated in NPPESMay 31, 2024
Certification dateMay 31, 2024

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Providence Health And Services - Washington — 264 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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