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

Thomas John Breen, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1972090868

Thomas John Breen, MD is a Cardiovascular Disease (Cardiology) in Eatontown, New Jersey. Graduated from Albany Medical College of Union University in 2018, 8 years ago. Practices with Monmouth Cardiology Associates, LLC, a 43-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Minnesota and New Jersey.

Years since qualifying
8
Trained at
Albany Medical College of Union University
Licensed in
MN, NJ
In the registry since
2018
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Eatontown, NJ

Additional practice locations (2)

  • 20 York St, New Haven, CT 06510-3220 — (203) 688-4242
  • Mayo Clinic 200 1st St Sw, Rochester, MN 55905 — (507) 284-2511

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 25MA12570800 (NJ)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence 65806 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 29276 (MN)

Record details

NPI number1972090868
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2018
Last updated in NPPESApril 16, 2025
Certification dateApril 16, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 2018 (8 years in practice)
Group practice Monmouth Cardiology Associates, Llc — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Eatontown