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Compare the published Medicare service mix of Gregg Alan Dickerson, M.D. with clinicians in the same registry specialty: Radiation Oncology (CMS).

GREENVILLE, MS · 100 milesEdit location
Within 100 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ross Edward Bland, M.D.

Radiation Oncology (CMS) · Monroe, LA

Shared published services
3 shared services · view billing descriptions
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
84%Service-mix similarity~86.6 milesView profile →

Steven E Zachow, MD

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Continuing radiation therapy consultation per week (77336)
79%Service-mix similarity~87.0 milesView profile →

Margaret E Wadsworth, M.D.

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
75%Service-mix similarity~86.8 milesView profile →

Sidney A Johnson, MD

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
75%Service-mix similarity~85.7 milesView profile →

Margie Jeanann Suggs, M.D.

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
74%Service-mix similarity~86.8 milesView profile →

Eric L Balfour, M.D.

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
71%Service-mix similarity~85.7 milesView profile →

Shahid Hameed, MD

Radiation Oncology (CMS) · Pine Bluff, AR

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
71%Service-mix similarity~82.9 milesView profile →

Richard B Friedman, MD

Specialty details in registry · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
67%Service-mix similarity~86.8 milesView profile →

Jimmy Caudell, MD

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
65%Service-mix similarity~85.7 milesView profile →

Eswara Kumar Mundra, MD

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Radiation treatment management, 5 treatment sessions (77427)
64%Service-mix similarity~85.7 milesView profile →

Toms Vengaloor Thomas, M.D

Radiation Oncology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Radiation treatment management, 5 treatment sessions (77427)
62%Service-mix similarity~83.2 milesView profile →

Robert Allbright, M.D.

Specialty details in registry · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Radiation treatment management, 5 treatment sessions (77427)
57%Service-mix similarity~83.2 milesView 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 approximate distance 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.