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

Jonathan H Marsh, MD

Individual provider Hematology & Oncology Physician · NPI 1225031354

Jonathan H Marsh, MD is a Hematology/Oncology in Palmer, Massachusetts. Graduated from State University of New York at Stony Brook, School of Medicine in 1986, 40 years ago. Practices with Baystate Medical Practices Inc, a 1,346-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
40
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
MA
In the registry since
2005
Specialties on file
2
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

40 Wright St
Palmer, MA 01069-1138
Phone: (413) 284-5400
Fax: (413) 284-5559
Show map & directions

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 261665 (MA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 261665 (MA)

Record details

NPI number1225031354
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2005
Last updated in NPPESNovember 28, 2016
Mailing address280 Chestnut St, 2nd Floor, Springfield, MA 01199-1001

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Baystate Medical Practices Inc — 1346 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare