Quick answers
- Does Marc Z. Krichavsky accept Medicare assignment?
- Yes. Medicare's clinician data says Marc Z. Krichavsky 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 Marc Z. Krichavsky see?
- In 2024, CMS data shows 754 Original Medicare patients and 2,784 services for Marc Z. Krichavsky. This counts Original Medicare only and measures volume, not quality.
- What is Marc Z. Krichavsky's NPI number?
- 1457377723. 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 Marc Z. Krichavsky, 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 | 754 |
|---|---|
| Services billed to Medicare | 2,784 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)725 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)424 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)415 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)197 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)103 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%
- Arthritis49%
- Ischemic heart disease49%
- Atrial fibrillation43%
- Diabetes32%
Hospitals where Marc Z. Krichavsky works
Medicare's Facility Affiliation Data lists Marc Z. Krichavsky 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.
- Bridgeport HospitalBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070010
- Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033
- 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 Marc Z. Krichavsky is enrolled with Medicare (CMS data updated October 2, 2026).
- 25 Germantown RdDanbury, CT 06810 (203) 292‑2000
- 30 Prospect St, Suite 200Ridgefield, CT 06877 (203) 438‑9621
- 95 Armory RdStratford, CT 06614 (203) 384‑3388
Group practices
Medicare enrollment lists Marc Z. Krichavsky as a member of this group (CMS data updated October 2, 2026).
- Northeast Medical Group Inc1,360 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Connecticut →
Other cardiologists in Danbury
Clinicians with the same Medicare primary specialty in Danbury, CT — not a recommendation.
Other clinicians in Northeast Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 2001 (25 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) | 1457377723 |
| 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