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

William S Treloar, DO

Individual provider Emergency Medicine Physician · NPI 1174594360

William S Treloar, DO is an Emergency Medicine Physician in Roseburg, Oregon. Licensed in Oregon. Registered with an NPI since 2006.

Licensed in
OR
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

2700 NW Stewart Pkwy
Roseburg, OR 97470-1281
Phone: (541) 677-4313
Fax: (541) 677-4533
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DO26167 (OR)

Record details

NPI number1174594360
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 27, 2006
Last updated in NPPESJuly 13, 2026

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