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

Dr. William Daniel Peffley, DO

Individual provider Family Medicine Physician · NPI 1275548562

Dr. William Daniel Peffley, DO is a Family Medicine Physician in Dallas, Oregon. Practices as a sole proprietor. Licensed in Oregon.

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

607 SE Jefferson St
Dallas, OR 97338-2025
Phone: (503) 623-1200
Fax: (503) 623-1414
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence DO27471 (OR)

Record details

NPI number1275548562
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJuly 29, 2006
Last updated in NPPESApril 5, 2012

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