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Compare the published Medicare service mix of Graham Walter Warren, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

LEXINGTON, KY · Exact areaEdit location

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nicolas P. Burnett, M.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
86%Service-mix similarityView profile →

Robert Bernard Summe, M.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
83%Service-mix similarityView profile →

Richard Matter

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
80%Service-mix similarityView profile →

Ronald C Mcgarry, M.D., PH.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
79%Service-mix similarityView profile →

Mark Edmund Bernard, M.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
79%Service-mix similarityView profile →

Thomas Hunter

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Weisi Yan, M.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Denise Fabian

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Laura Downes, M.D.

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
74%Service-mix similarityView profile →

Adam J T Smith, MD, PHD

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
73%Service-mix similarityView profile →

Eddy Shih-Hsin Yang, MD

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
72%Service-mix similarityView profile →

Shilpa Sachdeva Larkin, MD

Radiation Oncology (CMS) · Lexington, KY

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
69%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.