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Advanced Heart Failure and Transplant Cardiology

Michael P. Zacharias, DO

Works at hospitals in Marietta, OH · Cleveland, OH · Westlake, OH … · Ohio

Summary

Dr. Michael P. Zacharias, DO is a heart failure and transplant cardiologist at 11100 Euclid Ave, Cleveland, OH 44106. Phone: (216) 844-1000. Accepts Medicare assignment. In 2024, Michael P. Zacharias had 409 Original Medicare patients and 814 services. NPI 1932306073. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Heart failure and transplant cardiologist (Medicare lists Advanced Heart Failure and Transplant Cardiology)
  • Address: 11100 Euclid Ave, Cleveland, OH 44106 · Directions (1 more location)
  • Phone: (216) 844‑1000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Marietta Memorial Hospital, UH Cleveland Medical Center, UH St John Medical Center and 2 more
  • Group practice: University Hospitals Medical Group Inc (+1 more)
  • Medical school: Ohio State University College Of Medicine · graduated 2007 (19 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Michael P. Zacharias, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Michael P. Zacharias accept Medicare assignment?
Yes. Medicare's clinician data says Michael P. Zacharias 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 Michael P. Zacharias see?
In 2024, CMS data shows 409 Original Medicare patients and 814 services for Michael P. Zacharias. This counts Original Medicare only and measures volume, not quality.
What is Michael P. Zacharias's NPI number?
1932306073. 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 Michael P. Zacharias, 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 patients409
Services billed to Medicare814
Different services or procedures26
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Critical care, first 30-74 minutes (99291)189 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)166 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)71 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)62 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)50 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%
  • Heart failure75%
  • Ischemic heart disease69%
  • Arthritis57%
  • Atrial fibrillation52%

Hospitals where Michael P. Zacharias works

Medicare's Facility Affiliation Data lists Michael P. Zacharias 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.

Practice locations

Addresses where Michael P. Zacharias is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Michael P. Zacharias as a member of these groups (CMS data updated October 2, 2026).

  • University Hospitals Medical Group Inc2,294 clinicians in the group
  • Marietta Memorial Hospital392 clinicians in the group

Specialties

Find other Advanced Heart Failure and Transplant Cardiology doctors in Ohio →

Other heart failure and transplant cardiologists in Cleveland

Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.

All heart failure and transplant cardiologists in Cleveland →

Other clinicians in University Hospitals Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolOhio State University College Of Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1932306073
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians