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

Sonja Schaffer

Individual provider Family Nurse Practitioner · NPI 1336694439

Sonja Schaffer is a Nurse Practitioner in Charlton, Massachusetts. Graduated from University of Massachusetts Medical School in 2016, 10 years ago. Practices with Saint Vincent Physician Services Inc, a 72-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2016
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Practice location Address checks out

9 Trolley Crossing Rd
Charlton, MA 01507-1351
Phone: (508) 784-1278
Fax: (508) 784-1279
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 9 Trolley Crossing Rd, Charlton, MA 01507-1351 — (508) 784-1278
  • 128 Main St, Sturbridge, MA 01566-1556 — (508) 347-9240
  • 128 Main St, Sturbridge, MA 01566-1556 — (508) 347-9240

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2289480 (MA)

Record details

NPI number1336694439
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 18, 2016
Last updated in NPPESMay 7, 2018
Mailing address9 Trolley Crossing Rd, Charlton, MA 01507-1351

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice Saint Vincent Physician Services Inc — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Charlton