Quick answers
- Does H M. Cohn accept Medicare assignment?
- Yes. Medicare's clinician data says H M. Cohn 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 H M. Cohn see?
- In 2024, CMS data shows 623 Original Medicare patients and 2,748 services for H M. Cohn. This counts Original Medicare only and measures volume, not quality.
- What is H M. Cohn's NPI number?
- 1437470283. 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 H M. Cohn, 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 | 623 |
|---|---|
| Services billed to Medicare | 2,748 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)149 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)125 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)122 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)119 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)108 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%
- Arthritis61%
- Ischemic heart disease52%
- Diabetes40%
- Anxiety39%
Hospitals where H M. Cohn works
Medicare's Facility Affiliation Data lists H M. Cohn 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
- North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310051
Practice locations
Addresses where H M. Cohn is enrolled with Medicare (CMS data updated October 2, 2026).
- 3400 Nesconset Hwy, Suite 101East Setauket, NY 11733 (631) 751‑8700
Group practices
Medicare enrollment lists H M. Cohn as a member of this group (CMS data updated October 2, 2026).
- Medical Services of Setauket PC15 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in East Setauket
Clinicians with the same Medicare primary specialty in East Setauket, NY — not a recommendation.
Other clinicians in Medical Services of Setauket PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437470283 |
| 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