Quick answers
- Does William I. Frumkin accept Medicare assignment?
- Yes. Medicare's clinician data says William I. Frumkin 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 William I. Frumkin see?
- In 2024, CMS data shows 279 Original Medicare patients and 2,348 services for William I. Frumkin. This counts Original Medicare only and measures volume, not quality.
- What is William I. Frumkin's NPI number?
- 1598789018. 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 William I. Frumkin, 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 | 279 |
|---|---|
| Services billed to Medicare | 2,348 |
| Different services or procedures | 43 |
| 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)460 services
- Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days (93297)382 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)325 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)192 services
- Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)111 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 disease57%
- Diabetes55%
- Atrial fibrillation51%
- Arthritis48%
Hospitals where William I. Frumkin works
Medicare's Facility Affiliation Data lists William I. Frumkin 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.
- Flushing Hospital Medical CenterFlushing, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330193
- Jamaica Hospital Medical CenterJamaica, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330014
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024
Practice locations
Addresses where William I. Frumkin is enrolled with Medicare (CMS data updated October 2, 2026).
- 184 E 70th St, Suite B2New York, NY 10021 (212) 535‑1550
- 650 Central AveCedarhurst, NY 11516 (516) 804‑8590
- 8900 Van Wyck Expy, Fl 1Richmond Hill, NY 11418 (718) 206‑6000
Group practices
Medicare enrollment lists William I. Frumkin as a member of this group (CMS data updated October 2, 2026).
- Five Towns Heart Imaging Medical P.C.12 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in Five Towns Heart Imaging Medical P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598789018 |
| 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