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Compare the published Medicare service mix of Gary J Maszak, MD with clinicians in the same registry specialty: Cardiovascular Disease.

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 106 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vicken Sarkis Zeitjian, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
53%Service-mix similarityView profile →

Ramavathi Nandyala, MD

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
38%Service-mix similarityView profile →

Jeffrey Clay Fletcher, D.O.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
37%Service-mix similarityView profile →

Ogei Yar, MD

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
36%Service-mix similarityView profile →

Shadi M Tolaymat, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
34%Service-mix similarityView profile →

Obinna Gift Isiguzo, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
34%Service-mix similarityView profile →

Ananth K Prasad, MD

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
34%Service-mix similarityView profile →

Venkata Krishna Puppala, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
32%Service-mix similarityView profile →

William C L Wu, M.D.

Cardiovascular Disease · San Antonio, TX

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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
31%Service-mix similarityView profile →

Robert M Saad, MD

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • 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 left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
30%Service-mix similarityView profile →

Sayena Azarbar, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
30%Service-mix similarityView profile →

Michael Jose Cavazos, M.D.

Cardiovascular Disease · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
30%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.