HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Sue Sun Yom, M.D., PH.D. with clinicians in the same registry specialty: Radiation Oncology (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 33 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Steven Neema Seyedin, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Calculation of radiation therapy dose (77300)
91%Service-mix similarityView profile →

Jason Chan, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Calculation of radiation therapy dose (77300)
89%Service-mix similarityView profile →

Michael N Corradetti, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Calculation of radiation therapy dose (77300)
88%Service-mix similarityView profile →

Alexander R. Gottschalk, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
88%Service-mix similarityView profile →

William Cheng Chen, MD

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
84%Service-mix similarityView profile →

Anna Kristina Paulsson, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
83%Service-mix similarityView profile →

Julian C Hong, M.D., M.S.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
83%Service-mix similarityView profile →

Nicolas Demetrios Prionas, MD, PHD

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Calculation of radiation therapy dose (77300)
82%Service-mix similarityView profile →

Victor Eric Chen, MD, MPH

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
77%Service-mix similarityView profile →

Steve Braunstein, MD, PHD

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
77%Service-mix similarityView profile →

Lisa Singer

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
76%Service-mix similarityView profile →

Mary Uan-Sian Feng, M.D.

Radiation Oncology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Ct guidance for insertion of radiation therapy fields (77014)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
75%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.