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

Robert M Weiss

Individual provider Internal Medicine Physician · NPI 1861575953

Robert M Weiss is a Gastroenterology in Holyoke, Massachusetts. Graduated from Columbia University College of Physicians and Surgeons in 1985, 41 years ago. Practices with Pioneer Valley Gastroenterology Associates PC, a 2-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
41
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
MA
In the registry since
2006
Specialties on file
2

Practice location Address checks out

10 Hospital Dr Ste 102
Holyoke, MA 01040-6603
Phone: (413) 534-1132
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 57667 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 57667 (MA)

Record details

NPI number1861575953
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 23, 2006
Last updated in NPPESFebruary 11, 2011
Mailing addressPo Box 9132, Brookline, MA 02446-9132

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1985 (41 years in practice)
Group practice Pioneer Valley Gastroenterology Associates Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Holyoke