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

Dr. Mark Stephen Weinfeld, MD

Individual provider Internal Medicine Physician · NPI 1518958180

Dr. Mark Stephen Weinfeld, MD is a Cardiovascular Disease (Cardiology) in Boston, Massachusetts. Graduated from Harvard Medical School in 1991, 35 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
35
Trained at
Harvard Medical School
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 Vbk 508 Cardiac Ultrasound
Boston, MA 02114-2696
Phone: (617) 726-8871
Fax: (617) 726-8383
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 77805 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 77805 (MA)

Record details

NPI number1518958180
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2005
Last updated in NPPESFebruary 15, 2012

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1991 (35 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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