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

Northstar Associates, PLLC

Organization Sleep Medicine (Psychiatry & Neurology) Physician · NPI 1912921586

Northstar Associates, PLLC is a Sleep Medicine (Psychiatry & Neurology) Physician in Bellingham, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
Specialties on file
3
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1345 King St
Bellingham, WA 98229-6223
Phone: (360) 676-1696
Fax: (360) 676-6636
Show map & directions

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

Specialties & licences

Sleep Disorder Diagnostic Clinic/Center (primary) Taxonomy 261QS1200X · Licence 602 099 399 (WA)
Sleep Medicine (Psychiatry & Neurology) Physician Taxonomy 2084S0012X
Durable Medical Equipment & Medical Supplies Taxonomy 332B00000X

Record details

NPI number1912921586
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Christopher Mathews — President · (360) 676-1696
Other names Northstar Medical Specialists
NPI enumeratedJuly 27, 2006
Last updated in NPPESDecember 5, 2025
Certification dateDecember 5, 2025
Mailing address1345 King St, Bellingham, WA 98229-6223