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Compare the published Medicare service mix of James W Lyon, MD with clinicians in the same registry specialty: Diagnostic Radiology · Interventional Radiology (CMS).

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 231 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert P Flynn, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
78%Service-mix similarityView profile →

Clinton R Nichols, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
59%Service-mix similarityView profile →

Gregg D Alzate, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
58%Service-mix similarityView profile →

Aaron Mathew Smith, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
53%Service-mix similarityView profile →

John J Dente, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
49%Service-mix similarityView profile →

Jay Beckett Federhart, MD

Diagnostic Radiology · Interventional Pain Management · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
46%Service-mix similarityView profile →

Derrick Ross Allen, MD

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
44%Service-mix similarityView profile →

Tyler Clark Mandt, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
43%Service-mix similarityView profile →

John P. Lubisich, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
24%Service-mix similarityView profile →

Michael Galen Chan, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
23%Service-mix similarityView profile →

Michael W Kistler, M.D.

Specialty details in registry · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
19%Service-mix similarityView profile →

Saba Thaer Naamo, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
18%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.