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

Mark Levi Briggs, LMHCA

Individual provider Counselor · NPI 1598435117

Mark Levi Briggs, LMHCA is a Counselor in Issaquah, Washington. Licensed in Washington. Registered with an NPI since 2021.

Licensed in
WA
In the registry since
2021

Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 3057
Issaquah, WA 98027-0137
Phone: (425) 835-2503
Fax: (425) 285-5436
Show map & directions

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

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence CG61099654 (WA)

Record details

NPI number1598435117
Entity typeIndividual (Type 1)
GenderMale
Credentials LMHCA
Sole proprietorNo
NPI enumeratedSeptember 15, 2021
Last updated in NPPESJanuary 6, 2026
Certification dateJanuary 6, 2026
Mailing addressPo Box 3057, Issaquah, WA 98027-0137

Other providers in Issaquah