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Search › Washington › Dermatology Physician

Calvin Knapp, MD

NPI 1225533458 · on the registry since 2018

Practice

Address
4004 Colby Ave
Everett, WA 98201
Phone
(425) 339-5417
Fax
(425) 339-5429
Organisation at this address
Optum Care Washington Pllc
Optum Care Washington Pllc
Inferred from a shared address, not stated in the registry.
Clinicians at this address
13

Registry record

Primary taxonomy
Dermatology Physician
207N00000X
Licence states on file
WA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2026-04-17

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