Quick answers
- Does Ralph F. Caselnova accept Medicare assignment?
- Yes. Medicare's clinician data says Ralph F. Caselnova 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 Ralph F. Caselnova see?
- In 2024, CMS data shows 1,165 Original Medicare patients and 4,243 services for Ralph F. Caselnova. This counts Original Medicare only and measures volume, not quality.
- What is Ralph F. Caselnova's NPI number?
- 1548219835. 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 Ralph F. Caselnova, 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 | 1,165 |
|---|---|
| Services billed to Medicare | 4,243 |
| Different services or procedures | 75 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)833 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)821 services
- Injection, regadenoson, 0.1 mg (J2785)413 services
- Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)300 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)285 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%
- Ischemic heart disease67%
- Arthritis57%
- Diabetes54%
- Heart failure47%
Hospitals where Ralph F. Caselnova works
Medicare's Facility Affiliation Data lists Ralph F. Caselnova 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.
- Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330332
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
- 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 Ralph F. Caselnova is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 100 Port Washington BlvdRoslyn, NY 11576
- 1000 Montauk HwyWest Islip, NY 11795 (631) 465‑6225
- 1000 N Village AveRockville Center, NY 11570
- 200 Belle Terre RdPort Jefferson, NY 11777
- 4295 Hempstead TpkeBethpage, NY 11714 (516) 579‑6000
Group practices
Medicare enrollment lists Ralph F. Caselnova as a member of these groups (CMS data updated October 2, 2026).
- CHS Physician Partners PC743 clinicians in the group
- Cardiac Ekg Interpretation, P. C.57 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in Roslyn
Clinicians with the same Medicare primary specialty in Roslyn, NY — not a recommendation.
Other clinicians in CHS Physician Partners PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548219835 |
| 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