Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Stephen M. Fleet, MD

Individual provider Cardiovascular Disease Physician · NPI 1588764948

Dr. Stephen M. Fleet, MD is registered under Cardiovascular Disease (Cardiology) in Greenfield, Massachusetts. Graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1977, 49 years ago. Practices with Baystate Medical Practices Inc, a 1,346-clinician group and accepts Medicare assignment. Licensed in Massachusetts and New Hampshire.

Years since qualifying
49
Trained at
Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Licensed in
MA, NH
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

164 High St
Greenfield, MA 01301-2613
Phone: (413) 794-2273
Fax: (413) 773-2841
Show map & directions

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

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 47690 (MA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 20714 (NH)

Record details

NPI number1588764948
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 25, 2006
Last updated in NPPESJanuary 18, 2023
Certification dateJanuary 18, 2023

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesGERIATRIC MEDICINE
Medical schoolCLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduated 1977 (49 years in practice)
Group practice Baystate Medical Practices Inc — 1346 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,452
Services billed 2,425 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Baystate Medical Practices Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1346 clinicians in the practice; 12 are shown here.

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