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

Dr. John Kassotis, MD

Individual provider Advanced Heart Failure and Transplant Cardiology Physician · NPI 1598759003

Dr. John Kassotis, MD is a Cardiovascular Disease (Cardiology) in Riverhead, New York. Graduated from Columbia University College of Physicians and Surgeons in 1990, 36 years ago. Practices with Peconic Cardiology PC, a 19-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
36
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
NJ, NY
In the registry since
2005
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

951 Roanoke Ave
Riverhead, NY 11901-2724
Phone: (631) 369-5005
Fax: (631) 369-4994
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 450 Clarkson Ave, Brooklyn, NY 11203-2056 — (718) 270-1081

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 187961-01 (NY)
Advanced Heart Failure and Transplant Cardiology Physician Taxonomy 207RA0001X · Licence 187961-01 (NY)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 187961-1 (NY)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 25MA07553100 (NJ)

Record details

NPI number1598759003
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESApril 7, 2023
Certification dateApril 7, 2023
Mailing address951 Roanoke Ave, Riverhead, NY 11901-2724

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesADVANCED HEART FAILURE AND TRANSPLANT CARDIOLOGY, CARDIAC ELECTROPHYSIOLOGY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1990 (36 years in practice)
Group practice Peconic Cardiology Pc — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount