John Kassotis, M.D.
Clinical Cardiac Electrophysiology Physician · Riverhead, NY
John Kassotis, M.D. is a clinical cardiac electrophysiology physician with a practice address in Riverhead, New York, and NPI 1598759003, issued on Sep 12, 2005. Check the license (New York 187961-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Kassotis
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License numbers
- 187961-01 NY
187961-1 NY
25MA07553100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 951 Roanoke Ave, Riverhead, NY 11901
- Phone
- (631) 369-5005
- Enumerated
- Sep 12, 2005
- Record last updated
- Apr 7, 2023
- Fax
- (631) 369-4994
- Medicaid ID
- 01755384 NY
- Medicare enrollment
- Enrolled (PECOS I20040728000778); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1990
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 214 in New York → Look up another NPI →
Also registered at 951 Roanoke Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Miguel Blanco, MDCardiovascular Disease Physician1235127861
- Karla Brantuk, PAPhysician Assistant1255389250
- Rameshchandra Dabhi, MDCardiovascular Disease Physician1033107677
- Prateek Dalal, MDCardiovascular Disease Physician1184612723
- Courtney Davila, NPFamily Nurse Practitioner1083116040
- Sean Donahoe, M.D.Cardiovascular Disease Physician1790722304
Verify John Kassotis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 187961-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
130 Medicare Part D claims for 42 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $26,557.26
35 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Peconic Cardiology PCRiverhead, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Kassotis among 214 clinical cardiac electrophysiology physician records in New York
John Kassotis, M.D. is one of 214 clinical cardiac electrophysiology physician records with a practice address in New York. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 91% of these records are
- Graduated1990 · median 2002 among the 194 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in New York
There are 214 clinical cardiac electrophysiology physician records in New York.
All 214 in New York → Every provider in Riverhead → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Eric Pagan, M.D.Riverhead, NY 119011336596741
- Ching Wei ChenWest Islip, NY 117951023350352
- Justin Shaber, M.D.West Islip, NY 117951255598595
- Eric Uyguanco, M.D.West Islip, NY 117951326219569
- Abhijeet Singh, MDStony Brook, NY 117941275793580
- Abram Mozes, M.D.Smithtown, NY 117871568418689
- Eric Rashba, M.D.Islandia, NY 117491659311868
- Nicholas BeccarinoHuntington, NY 117431528592169
Common questions
What is John Kassotis, M.D.'s NPI number?
John Kassotis, M.D.'s National Provider Identifier (NPI) is 1598759003, issued on Sep 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Kassotis, M.D. located?
The NPPES record lists a practice address at 951 Roanoke Ave, Riverhead, NY, 11901. Phone: (631) 369-5005. Providers update this record themselves, so call before visiting.
How can I verify John Kassotis, M.D.'s license?
NPPES lists New York license number 187961-01, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Kassotis, M.D. prescribe under Medicare Part D?
In 2024, John Kassotis, M.D. had 130 Medicare Part D claims for 42 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.