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

Kathryn Stiff, NP

Individual provider Family Nurse Practitioner · NPI 1134490188

Kathryn Stiff, NP is a Family Nurse Practitioner in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts and Washington.

Licensed in
MA, WA
In the registry since
2012
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

55 Fruit St
Boston, MA 02114-2621
Phone: (617) 726-2000
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2336622 (MA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence AP60252118 (WA)

Record details

NPI number1134490188
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedJanuary 23, 2012
Last updated in NPPESMay 6, 2025
Certification dateMay 6, 2025

Other providers in Boston