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
Mailing address607 Se Jefferson St, Dallas, OR 97338-2025

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