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

Individual provider Mental Health Counselor · NPI 1144649294

Tiffany Addelle Diedesch, LMHC is a Mental Health Counselor in Mount Vernon, Washington. Practices as a sole proprietor and works from 2 locations. Licensed in Washington.

Licensed in
WA
In the registry since
2014
Specialties on file
2
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

325 Pine St Ste F
Mount Vernon, WA 98273-5929
Phone: (425) 299-2848
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 515 Lakeway Dr, Bellingham, WA 98225-5233 — (360) 676-2187

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence MC 60738278 (WA)
Mental Health Counselor Taxonomy 101YM0800X · Licence LH60959223 (WA)

Record details

NPI number1144649294
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorYes
NPI enumeratedApril 15, 2014
Last updated in NPPESJune 18, 2019

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