Sammy Zakaria, MD

Medicare activity in 2024

Official CMS public-use data for Sammy Zakaria, 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.

Most frequent services

1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)5,338 services
2. Critical care, first 30-74 minutes (99291)176 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)70 services
4. Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days (93244)43 services
5. Critical care, each additional 30 minutes (99292)43 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%
• Arthritis57%
• Ischemic heart disease55%
• Diabetes48%
• Heart failure47%

Hospitals where Sammy Zakaria works

Medicare's Facility Affiliation Data lists Sammy Zakaria 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.

• Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210029
• MedStar Franklin Square Medical CenterRosedale, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210015
• The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210009

Practice locations

Addresses where Sammy Zakaria is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 1800 Orleans StBaltimore, MD 21287 (410) 955‑5000
• 4940 Eastern AveBaltimore, MD 21224
• 4940 Eastern Ave, Bayview Medical CenterBaltimore, MD 21224 (410) 550‑0100
• 5300 Alpha Commons Dr, Fl 1Baltimore, MD 21224 (410) 847‑3770
• 5501 Hopkins Bayview CirBaltimore, MD 21224

Group practices

Medicare enrollment lists Sammy Zakaria as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University713 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary
• Critical Care (Intensivists)also
• Internal Medicinealso

Find other Cardiovascular Disease (Cardiology) doctors in Maryland →

Other cardiologists in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

• Brian Barr, MD
• Marlene S. Williams, MD
• Warren J. Smith, MD
• Steven J. Mason, MD
• Tala Al-Talib, MD
• Ankit Garg, MD
• Athol W. Morgan, MD
• William Ravekes, MD

All cardiologists in Baltimore →

Other clinicians in Johns Hopkins University

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

• Gerard E. Mullin, MD
• Carl Stafstrom, MD
• Erik H. Hoyer, MD
• Lucas Nikkel, MD
• Youssef G. Comair, MD
• Alexandra Roginsky Tsesis, MD

Clinician information

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