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

Dr. Jeffrey Alan Held, MD

Individual provider Internal Medicine Physician · NPI 1841243557

Dr. Jeffrey Alan Held, MD is an Internal Medicine in Cambridge, Massachusetts. Graduated from University of Florida College of Medicine in 1998, 28 years ago. Practices with Massachusetts Institute of Technology, a 56-clinician group and accepts Medicare assignment. Licensed in Florida and Massachusetts.

Years since qualifying
28
Trained at
University of Florida College of Medicine
Licensed in
FL, 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

25 Carleton St # E23
Cambridge, MA 02142-1323
Phone: (617) 258-9355
Fax: (617) 258-9355
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 290818 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME90446 (FL)

Record details

NPI number1841243557
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESMay 19, 2026
Certification dateMay 19, 2026
Mailing address25 Carleton St # E23, Cambridge, MA 02142-1323

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Massachusetts Institute Of Technology — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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