Search › Washington › 101YM0800X
Matthew Simpson, LMHC
NPI 1609425420 · on the registry since 2019 · sole proprietor
Practice
- Address
- 1400 112th Ave Se Ste 100
Bellevue, WA 98004 - Phone
- (208) 620-9791
- Organisation at this address
- Dbt Eastside
Adding Solutions
Donna Coombs Lmhc
The Hamilton Center
Equilibrium Pcs, PllcInferred from a shared address, not stated in the registry. - Clinicians at this address
- 50
Registry record
- Primary taxonomy
- 101YM0800X
101YM0800X
- Also registered as
- 106S00000X
- Licence states on file
- WA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2025-08-04
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Washington