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

Marci S Yoss, MD

Individual provider Family Medicine Physician · NPI 1942215363

Marci S Yoss, MD is a Family Medicine Physician in Northampton, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
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

325B King St
Northampton, MA 01060-2370
Phone: (413) 387-4100
Fax: (413) 387-4119
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 54446 (MA)

Record details

NPI number1942215363
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESNovember 14, 2016

Other providers in Northampton