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Compare the published Medicare service mix of Robert O Lindsey, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

LONG BEACH, CA · Exact areaEdit location

2024 published service data · 45 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Richard Y Chai, MD

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
63%Service-mix similarityView profile →

Keith R Burnett, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
48%Service-mix similarityView profile →

Dong H Kim, MD

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
42%Service-mix similarityView profile →

Charlton Byun, M.D.

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
32%Service-mix similarityView profile →

Archana C Lucchesi, M.D.

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
30%Service-mix similarityView profile →

Daniel Leon Gianella, MD

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
29%Service-mix similarityView profile →

Justin L Mccoy, MD

Diagnostic Radiology · Interventional Radiology · Otolaryngology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
29%Service-mix similarityView profile →

Francine M Kim, M.D.

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
1 shared services · view billing descriptions
  • Mri scan of brain before and after contrast (70553)
27%Service-mix similarityView profile →

Charles Franklin Brown, M.D.

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
27%Service-mix similarityView profile →

Gregory Lee Thalken, MD

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
26%Service-mix similarityView profile →

Gabriel F Ramirez, MD

Specialty details in registry · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of upper spinal canal without contrast (72141)
23%Service-mix similarityView profile →

Ammar Istwani, M.D.

Diagnostic Radiology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
19%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.