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

Individual provider Internal Medicine Physician · NPI 1750365664

Dr. Gregory D Lewis, MD is an Advanced Heart Failure and Transplant Cardiology in Boston, Massachusetts. Graduated from University of Rochester School of Medicine and Dentistry in 1999, 27 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
27
Trained at
University of Rochester School of Medicine and Dentistry
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.

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Practice location Address checks out

55 Fruit St Grb 740 Bigelow Teaching Service Inpatient & Cardiolog
Boston, MA 02114-2696
Phone: (617) 724-7436
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Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 210023 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 210023 (MA)

Record details

NPI number1750365664
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 5, 2005
Last updated in NPPESNovember 28, 2012

Medicare enrollment

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

Medicare specialtyADVANCED HEART FAILURE AND TRANSPLANT CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1999 (27 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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