HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Ildefonso Ismael Rodriguez-Rivera, M.D. with clinicians in the same registry specialty: Hematology/Oncology · Internal Medicine (CMS).

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 51 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Sommerhalder

Hematology/Oncology · Internal Medicine · Medical Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
90%Service-mix similarityView profile →

Sharon T Wilks, M.D.

Specialty details in registry · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
78%Service-mix similarityView profile →

Naga Koteswari Sucha Cheedella, MD

Hematology/Oncology · Internal Medicine · Medical Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
74%Service-mix similarityView profile →

Syed N Raza, M.D.

Hematology · Hematology/Oncology · Medical Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
62%Service-mix similarityView profile →

Drew W Rasco, MD

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
59%Service-mix similarityView profile →

Michael Song, MD

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
56%Service-mix similarityView profile →

Esther Urbaez Duran, M.D.

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of drug or substance under skin or into muscle (96372)
50%Service-mix similarityView profile →

Matthew James Butler, M.D.

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
49%Service-mix similarityView profile →

Marcela Mazo Canola, M.D.

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
48%Service-mix similarityView profile →

Eswar Tipirneni

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
42%Service-mix similarityView profile →

Antoine Joseph Harb, MD

Hematology/Oncology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
42%Service-mix similarityView profile →

Arun R Rao, M.D.

Hematology/Oncology · Medical Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of additional new drug or substance into vein (96375)
  • Injection of drug or substance under skin or into muscle (96372)
41%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.