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

Michael R Dematteo, MD

Individual provider Hospitalist Physician · NPI 1851306278

Michael R Dematteo, MD is an Internal Medicine in Pittsfield, Massachusetts. Graduated from University of Massachusetts Medical School in 1981, 45 years ago. Practices with Berkshire Medical Center Inc, a 196-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
45
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

725 N St
Pittsfield, MA 01201-4124
Phone: (413) 496-6820
Fax: (413) 496-6821
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 48763 (MA)
Hospitalist Physician Taxonomy 208M00000X · Licence 48763 (MA)

Record details

NPI number1851306278
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESOctober 8, 2025
Certification dateOctober 8, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 1981 (45 years in practice)
Group practice Berkshire Medical Center Inc — 196 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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