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

Liam O'Sullivan, MD

Individual provider Emergency Medicine Physician · NPI 1639431133

Liam O'Sullivan, MD is an Emergency Medicine in Wenatchee, Washington. Graduated from University of Arizona College of Medicine in 2015, 11 years ago. Practices with Central Washington Health Services Association, a 702-clinician group and accepts Medicare assignment. Licensed in Arizona and Washington.

Years since qualifying
11
Trained at
University of Arizona College of Medicine
Licensed in
AZ, WA
In the registry since
2012
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

1201 S Miller St
Wenatchee, WA 98801-3201
Phone: (509) 663-8711
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD60546517 (WA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence R73282 (AZ)

Record details

NPI number1639431133
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2012
Last updated in NPPESNovember 3, 2015
Mailing address820 N Chelan Ave, Wenatchee, WA 98801-2028

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Central Washington Health Services Association — 702 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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