A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Lang Robertson Liebman, M.D. with clinicians in the same registry specialty: Radiation Oncology (CMS).

RICHMOND, VA · Exact areaEdit location

2024 published service data · 19 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Osman Muddassir Siddiqui, MD

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Design and construction of complex radiation treatment device (77334)
93%Service-mix similarityView profile →

Christopher Chipko, M.D.

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Design and construction of complex radiation treatment device (77334)
91%Service-mix similarityView profile →

Joseph Daniel Pennington, MD

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Design and construction of complex radiation treatment device (77334)
89%Service-mix similarityView profile →

Rebecca Frieda Krc, DO

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Design and construction of complex radiation treatment device (77334)
86%Service-mix similarityView profile →

Gregory Daniel Judy, M.D.

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Design and construction of complex radiation treatment device (77334)
85%Service-mix similarityView profile →

Nicholas Anthony Serrano, MD

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
80%Service-mix similarityView profile →

Shiyu Song, M.D.,PH.D.

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Ct guidance for insertion of radiation therapy fields (77014)
77%Service-mix similarityView profile →

David M Randolph, MD

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Ct guidance for insertion of radiation therapy fields (77014)
76%Service-mix similarityView profile →

Laurie W Cuttino, M.D.

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Ct guidance for insertion of radiation therapy fields (77014)
76%Service-mix similarityView profile →

Timothy J Wallace, MD

Radiation Oncology (CMS) · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Ct guidance for insertion of radiation therapy fields (77014)
75%Service-mix similarityView profile →

Timothy J Harris, M.D.

Radiation Oncology (CMS) · Richmond, VA

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

Elisabeth Weiss, MD

Radiation Oncology (CMS) · Richmond, VA

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