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

Mr. Dan W Reiff, PHD

Individual provider Mental Health Counselor · NPI 1184779845

Mr. Dan W Reiff, PHD is a Mental Health Counselor in Mercer Island, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

9725 SE 36th St Ste 301
Mercer Island, WA 98040-3841
Phone: (206) 232-8404
Show map & directions

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

Specialties & licences

Nutritionist (primary) Taxonomy 133N00000X · Licence NU00000947 (WA)
Mental Health Counselor Taxonomy 101YM0800X · Licence LH00009322 (WA)

Record details

NPI number1184779845
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 24, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address9725 Se 36th St, Suite 301, Mercer Island, WA 98040-3841

Other providers in Mercer Island