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Compare the published Medicare service mix of Sammy Zakaria, MD, MPH with clinicians in the same registry specialty: Cardiovascular Disease.

BALTIMORE, MD · Exact areaEdit location

2024 published service data · 121 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Maurizio Colognesi-Capogrossi, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
84%Service-mix similarityView profile →

Thorsten Martin Leucker, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
76%Service-mix similarityView profile →

Seth Shay Martin

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)
74%Service-mix similarityView profile →

Marlene Williams, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
71%Service-mix similarityView profile →

Chiadi E Ndumele, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
71%Service-mix similarityView profile →

Mark D Kelemen, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
65%Service-mix similarityView profile →

Roger Scott Blumenthal, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days (93244)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
64%Service-mix similarityView profile →

Harry Silber, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
63%Service-mix similarityView profile →

Nisha Chandra-Strobos, M.D.

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days (93244)
63%Service-mix similarityView profile →

Steven R Jones, MD

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
62%Service-mix similarityView profile →

Stacey L Schott, MD

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days (93244)
61%Service-mix similarityView profile →

Oscar Horacio Cingolani, MD

Cardiovascular Disease · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
60%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.