Quick answers
- Does Mordechai A. Sacks accept Medicare assignment?
- Yes. Medicare's clinician data says Mordechai A. Sacks 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 Mordechai A. Sacks see?
- In 2024, CMS data shows 15 Original Medicare patients and 28 services for Mordechai A. Sacks. This counts Original Medicare only and measures volume, not quality.
- What is Mordechai A. Sacks's NPI number?
- 1265890396. 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 Mordechai A. Sacks, 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 | 15 |
|---|---|
| Services billed to Medicare | 28 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Hospitals where Mordechai A. Sacks works
Medicare's Facility Affiliation Data lists Mordechai A. Sacks 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.
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
Practice locations
Addresses where Mordechai A. Sacks is enrolled with Medicare (CMS data updated October 2, 2026).
- 32 Strawberry Hill CtStamford, CT 06902 (203) 276‑4925
Group practices
Medicare enrollment lists Mordechai A. Sacks as a member of this group (CMS data updated October 2, 2026).
- Emergency Medicine Physicians of Fairfield County LLC35 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Stamford
Clinicians with the same Medicare primary specialty in Stamford, CT — not a recommendation.
Other clinicians in Emergency Medicine Physicians of Fairfield County LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265890396 |
| 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