Quick answers
- Does Zvi A. Alpern accept Medicare assignment?
- Yes. Medicare's clinician data says Zvi A. Alpern 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 Zvi A. Alpern see?
- In 2024, CMS data shows 556 Original Medicare patients and 1,997 services for Zvi A. Alpern. This counts Original Medicare only and measures volume, not quality.
- What is Zvi A. Alpern's NPI number?
- 1023115748. 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 Zvi A. Alpern, 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 | 556 |
|---|---|
| Services billed to Medicare | 1,997 |
| Different services or procedures | 37 |
| 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)511 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)306 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)201 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)160 services
- Biopsy of small bowel (except ileum) using an endoscope (44361)136 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%
- Arthritis58%
- Ischemic heart disease55%
- Diabetes42%
- Anxiety37%
Hospitals where Zvi A. Alpern works
Medicare's Facility Affiliation Data lists Zvi A. Alpern 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
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393
Practice locations
Addresses where Zvi A. Alpern is enrolled with Medicare (CMS data updated October 2, 2026).
- 11014 Jamaica AveRichmond Hill, NY 11418 (516) 750‑8000
- 380 S BroadwayHicksville, NY 11801 (516) 750‑8000
- 48 Route 25a, Suite 307Smithtown, NY 11787 (631) 265‑0062
Group practices
Medicare enrollment lists Zvi A. Alpern as a member of this group (CMS data updated October 2, 2026).
- Digestive Disease Care, PC40 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Richmond Hill
Clinicians with the same Medicare primary specialty in Richmond Hill, NY — not a recommendation.
Other clinicians in Digestive Disease Care, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023115748 |
| 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