Individual
MARGARET MASS
Active
Sole proprietor
No
Provider details
NPI number
Gender
F
Credential
MD
Contact information
Practice address
904 7TH AVE, SEATTLE, WA 98104-1132
(206) 860-4700
Mailing address
PO BOX 5127, EVERETT, WA 98206-5127
(206) 860-5414
Taxonomy
Speciality
Code
Description
License number
State
207Q00000X
Family Medicine Physician
Primary
MD70026676
WA
Other
Enumeration date
06/06/2022
Last updated
01/27/2026
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