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

Margaret Mass, MD

Individual provider Family Medicine Physician · NPI 1083343107

Margaret Mass, MD is a Family Practice in Everett, Washington. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2022, 4 years ago. Practices with The Polyclinic PLLC, a 366-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
4
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
WA
In the registry since
2022
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3901 Hoyt Ave
Everett, WA 98201-4918
Phone: (425) 303-3091
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD70026676 (WA)

Record details

NPI number1083343107
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 6, 2022
Last updated in NPPESJuly 20, 2026
Certification dateJuly 20, 2026
Mailing address7600 Evergreen Way, Everett, WA 98203-6421

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2022 (4 years in practice)
Group practice The Polyclinic Pllc — 366 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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