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Compare the published Medicare service mix of Allison Leigh Tsao, MD with clinicians in the same registry specialty: Adult Congenital Heart Disease (Achd) · Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS).

PHILADELPHIA, PA · Exact areaEdit location

2024 published service data · 34 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Lauren Glassmoyer, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
87%Service-mix similarityView profile →

Ashwin Nathan, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
81%Service-mix similarityView profile →

Paul Nicolas Fiorilli, M.D.

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
78%Service-mix similarityView profile →

Howard C Herrmann, MD

Specialty details in registry · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
77%Service-mix similarityView profile →

Jay S Giri, MD

Cardiac Surgery · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
74%Service-mix similarityView profile →

Taisei John Kobayashi, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
73%Service-mix similarityView profile →

Daniel M Kolansky, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
73%Service-mix similarityView profile →

Nicholas Joseph Ruggiero, M.D.

Interventional Cardiology · Peripheral Vascular Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
68%Service-mix similarityView profile →

David L. Fischman, M.D.

Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Insertion of tube in right heart chambers for measurement (93451)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
68%Service-mix similarityView profile →

Robert H Li, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of tube in right heart chambers for measurement (93451)
65%Service-mix similarityView profile →

Oleg Vishnevsky, M.D.

Cardiovascular Disease (Cardiology) (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Insertion of tube in right heart chambers for measurement (93451)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
59%Service-mix similarityView profile →

Gene Chang, MD

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Insertion of tube in right heart chambers for measurement (93451)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
57%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.