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Similar work.
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Compare the published Medicare service mix of Mark C Smith, MD with clinicians in the same registry specialty: Radiation Oncology (CMS).

IOWA CITY, IA · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Carryn M Anderson, MD

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
87%Service-mix similarityView profile →

Kristin A Plichta

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
85%Service-mix similarityView profile →

Wenqing Sun, M.B.

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
85%Service-mix similarityView profile →

William M. Rockey, M.D.

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
83%Service-mix similarityView profile →

Addison Willett, MD, JD, MBA

Radiation Oncology (CMS) · Iowa City, IA

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 →

James Donald Byrne, M.D., PH.D.

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
74%Service-mix similarityView profile →

Malgorzata Kozak, M.D.

Radiation Oncology (CMS) · Iowa City, IA

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)
71%Service-mix similarityView profile →

Bryan G Allen, M.D., PH.D.

Radiation Oncology (CMS) · Iowa City, IA

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)
60%Service-mix similarityView profile →

John M Buatti, MD

Radiation Oncology (CMS) · Iowa City, IA

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)
59%Service-mix similarityView profile →

Jessica Rose Parkhurst, M.D.

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Design and construction of complex radiation treatment device (77334)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ct guidance for insertion of radiation therapy fields (77014)
55%Service-mix similarityView profile →

Kailin Yang, MD, PHD

Radiation Oncology (CMS) · Iowa City, IA

Shared published services
1 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
26%Service-mix similarityView profile →

Samuel Dewayne Andrews, M.D.

Specialty details in registry · Iowa City, IA

Shared published services
1 shared services · view billing descriptions
  • Radiation treatment management, 5 treatment sessions (77427)
26%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.