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
Mailing address3920 Outlook Rd, Sunnyside, WA 98944-9202