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

Claus Henner Janssen, MD

Individual provider Family Medicine Physician · NPI 1992758312

Claus Henner Janssen, MD is a Family Medicine Physician in Port Townsend, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1010 Sheridan St Ste 101
Port Townsend, WA 98368-2901
Phone: (360) 385-3500
Fax: (360) 385-5496
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD00031036 (WA)

Record details

NPI number1992758312
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2006
Last updated in NPPESNovember 15, 2024
Certification dateNovember 15, 2024

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