Quick answers
- Does Jeremy A. Mazurek accept Medicare assignment?
- Yes. Medicare's clinician data says Jeremy A. Mazurek 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 Jeremy A. Mazurek see?
- In 2024, CMS data shows 368 Original Medicare patients and 1,280 services for Jeremy A. Mazurek. This counts Original Medicare only and measures volume, not quality.
- What is Jeremy A. Mazurek's NPI number?
- 1336440254. 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 Jeremy A. Mazurek, 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 | 368 |
|---|---|
| Services billed to Medicare | 1,280 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)398 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)198 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)149 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)116 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)96 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 disease75%
- Heart failure75%
- Atrial fibrillation66%
- Chronic kidney disease63%
Hospitals where Jeremy A. Mazurek works
Medicare's Facility Affiliation Data lists Jeremy A. Mazurek 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.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
- Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330259
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401
- 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 Jeremy A. Mazurek is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Port Washington Blvd, Suite G02Roslyn, NY 11576 (516) 627‑4800
- 101 Northern BlvdGreenvale, NY 11548 (516) 629‑4000
Group practices
Medicare enrollment lists Jeremy A. Mazurek as a member of this group (CMS data updated October 2, 2026).
- CHS Physician Partners PC743 clinicians in the group
Specialties
Find other Advanced Heart Failure and Transplant Cardiology doctors in New York →
Other heart failure and transplant cardiologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
- Claudia G. Gidea, MD
- Jaya Batra
- Jayant Raikhelkar
- Jennifer H. Haythe, MD
- Sirish Vullaganti, MD
- Alex Reyentovich, MD
- Sean P. Pinney, MD
- Stephen Pan, MD
All heart failure and transplant cardiologists in New York →
Other clinicians in CHS Physician Partners PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336440254 |
| 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