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

BEVERLY HILLS, CA · 10 milesEdit location
Within 10 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 · 25 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Linas J Kazlauskas, MD

Radiation Oncology (CMS) · Glendale, CA

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)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Calculation of radiation therapy dose (77300)
70%Service-mix similarity~10.0 milesView profile →

April Vassantachart, MD

Radiation Oncology (CMS) · Sherman Oaks, CA

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)
  • Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)
  • Calculation of radiation therapy dose (77300)
67%Service-mix similarity~8.0 milesView profile →

Lisa Martine Chaiken, MD

Radiation Oncology (CMS) · Santa Monica, CA

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)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
66%Service-mix similarity~5.4 milesView profile →

Ronny Kalash

Radiation Oncology (CMS) · Sherman Oaks, CA

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)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
62%Service-mix similarity~8.0 milesView profile →

Eric M Chung, M.D.

Radiation Oncology (CMS) · West Hollywood, CA

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)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
61%Service-mix similarity~1.5 milesView profile →

Leslie E Botnick, M.D.

Radiation Oncology (CMS) · Sherman Oaks, CA

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)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
58%Service-mix similarity~8.0 milesView profile →

Benjamin Liang King, M.D.

Radiation Oncology (CMS) · West Hollywood, CA

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)
  • Calculation of radiation therapy dose (77300)
  • Ct guidance for insertion of radiation therapy fields (77014)
58%Service-mix similarity~1.5 milesView profile →

Julie Kau Jang, MD, PHD

Radiation Oncology (CMS) · West Hollywood, CA

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~1.5 milesView profile →

Anthony Tuan Nguyen, MD, PHD

Radiation Oncology (CMS) · West Hollywood, CA

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)
56%Service-mix similarity~1.5 milesView profile →

Robert C Wollman, MD

Diagnostic Radiology · Radiation Oncology (CMS) · Santa Monica, CA

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)
55%Service-mix similarity~5.4 milesView profile →

Karen G.m. Sokolov, M.D.

Radiation Oncology (CMS) · Burbank, CA

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)
54%Service-mix similarity~7.3 milesView profile →

Darlene M Bugoci, M.D.

Radiation Oncology (CMS) · Los Angeles, CA

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)
54%Service-mix similarity~6.4 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.