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

John W Allen, DO

Individual provider Adult Medicine Physician · NPI 1497818348

John W Allen, DO is an Adult Medicine Physician in Sunnyside, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
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

3920 Outlook Rd
Sunnyside, WA 98944-9202
Phone: (509) 837-6174
Fax: (509) 837-6225
Show map & directions

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

Specialties & licences

Adult Medicine Physician (primary) Taxonomy 207QA0505X · Licence OP00000786 (WA)

Record details

NPI number1497818348
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedDecember 19, 2006
Last updated in NPPESJuly 8, 2007