Quick answers
- Does Jyoti P. Ganguly accept Medicare assignment?
- Yes. Medicare's clinician data says Jyoti P. Ganguly accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Jyoti P. Ganguly see?
- In 2024, CMS data shows 1,678 Original Medicare patients and 4,402 services for Jyoti P. Ganguly. This counts Original Medicare only and measures volume, not quality.
- What is Jyoti P. Ganguly's NPI number?
- 1366456113. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Jyoti P. Ganguly, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,678 |
|---|---|
| Services billed to Medicare | 4,402 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)880 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)761 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)629 services
- Injection, regadenoson, 0.1 mg (J2785)300 services
- Ultrasound of both sides of head and neck blood flow (93880)268 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease54%
- Diabetes42%
- Anxiety36%
Hospitals where Jyoti P. Ganguly works
Medicare's Facility Affiliation Data lists Jyoti P. Ganguly at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330185
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330246
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330182
Practice locations
Addresses where Jyoti P. Ganguly is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 Montauk HwyWest Islip, NY 11795 (631) 465‑6225
- 200 Belle Terre RdPort Jefferson, NY 11777 (631) 465‑6225
- 496 Smithtown Byp, Suite 101Smithtown, NY 11787 (631) 979‑8880
- 50 Route 25aSmithtown, NY 11787 (631) 465‑6225
- 5225 Rte, 347 Suite 23Port Jefferson Station, NY 11776 (631) 473‑8880
Group practices
Medicare enrollment lists Jyoti P. Ganguly as a member of these groups (CMS data updated October 2, 2026).
- Cardiac Ekg Interpretation, P. C.57 clinicians in the group
- Millennium Medical Professionals, PLLC5 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in West Islip
Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.
Other clinicians in Cardiac Ekg Interpretation, P. C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1975 (51 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366456113 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians