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

Jon W Cronin, MD

Individual provider Internal Medicine Physician · NPI 1326085523

Jon W Cronin, MD is a Cardiovascular Disease (Cardiology) in Milton, Massachusetts. Graduated from University of Massachusetts Medical School in 1981, 45 years ago. Practices with South Shore Internal Medicine Associates Inc, an 11-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
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

100 Highland Street S Shore Internal Med
Milton, MA 02186
Phone: (617) 698-8855
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 50231 (MA)

Record details

NPI number1326085523
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2006
Last updated in NPPESJuly 13, 2026
Mailing address8 Heather Dr, Milton, MA 02186-5265

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 1981 (45 years in practice)
Group practice South Shore Internal Medicine Associates Inc. — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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