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Compare the published Medicare service mix of Thomas P Dresser, M.D. with clinicians in the same registry specialty: Specialty details in registry.

MO · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jerold W Wallis, MD

Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
87%Service-mix similarityView profile →

Ashwin Singh Parihar, MD

Diagnostic Radiology (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
81%Service-mix similarityView profile →

Barry A Siegel, MD

Diagnostic Radiology · Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
77%Service-mix similarityView profile →

Farrokh Dehdashti, MD

Diagnostic Radiology · Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
75%Service-mix similarityView profile →

Vikas Prasad, MD

Diagnostic Radiology (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
69%Service-mix similarityView profile →

Robert E Sonnemaker, MD

Specialty details in registry · Springfield, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
65%Service-mix similarityView profile →

Christopher Allan Swingle, DO

Diagnostic Radiology (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
62%Service-mix similarityView profile →

Henry D Royal, MD

Diagnostic Radiology (CMS) · Saint Louis, MO

Shared published services
1 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
61%Service-mix similarityView profile →

Razi Muzaffar, D.O.

Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
59%Service-mix similarityView profile →

Medhat M Osman, MD

Nuclear Medicine (CMS) · St Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
55%Service-mix similarityView profile →

Mark D Wittry, MD

Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
51%Service-mix similarityView profile →

Janet Helen Pollard, MD

Diagnostic Radiology · Nuclear Medicine (CMS) · Saint Louis, MO

Shared published services
1 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
47%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.