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Compare the published Medicare service mix of John Shumway, MD with clinicians in the same registry specialty: Radiation Oncology (CMS).

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 23 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Steven Marc Kurtzman, MD

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)
  • Complex radiation therapy planning for delivery of internal radiation (77318)
78%Service-mix similarityView profile →

Ankit Agarwal, M.D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Ying Li, MD

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)
49%Service-mix similarityView profile →

Timothy Downey Wagner, MD, MBA

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
46%Service-mix similarityView profile →

Richard Tuli, M.D., PH.D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Complex radiation therapy planning (77263)
46%Service-mix similarityView profile →

Shraddha Dalwadi, M.D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
46%Service-mix similarityView profile →

Gary D Lewis, MD

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)
45%Service-mix similarityView profile →

Neil Chandrabhan Chevli

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)
43%Service-mix similarityView profile →

Sylvia Zubyk, M. D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)
42%Service-mix similarityView profile →

Chul Soo Ha, M.D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
41%Service-mix similarityView profile →

Bryan Chih-Chang Lin, MD

Internal Medicine · Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
41%Service-mix similarityView profile →

Eva Mercedes Galvan, M.D.

Radiation Oncology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
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.