Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Birch Bay Dermatology P.S.

Dermatology Physician in Bellingham, WA · enumerated 2015 · authorized official Doug Hagensen, Director of Operations.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255728887

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Registry record

Entity type Organization (Type 2)

Legal business name Birch Bay Dermatology P.S.

Practice address 4540 Cordata Pkwy, Ste 101, Bellingham, WA, 98226

Phone (360) 255-5049

Fax (360) 778-2395

Enumeration date Apr 21, 2015

Last updated in NPPES Apr 21, 2015

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD60450667 (WA) Primary

Authorized official

Name Doug Hagensen

Title Director of Operations

Phone (360) 255-5049

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-04-21. Verify at npiregistry.cms.hhs.gov.

Where is Birch Bay Dermatology P.S. located?

The practice location on file with NPPES is in Bellingham, WA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-21.