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 S. Christopher Malaisrie, M.D. with clinicians in the same registry specialty: Cardiac Surgery · General Surgery · Thoracic Surgery (CMS).

CHICAGO, IL · Exact areaEdit location

2024 published service data · 43 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Duc Thinh Pham, M.D.

Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
78%Service-mix similarityView profile →

Christopher Kunal Mehta, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
59%Service-mix similarityView profile →

Ankit Bharat, MD

General Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
45%Service-mix similarityView profile →

Jeffrey Mark Silver, MD

Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
39%Service-mix similarityView profile →

Valluvan Jeevanandam

Cardiac Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Replacement of aortic valve on heart-lung machine (33405)
  • Replacement of mitral valve on heart-lung machine (33430)
  • Coronary artery bypass or valve procedure reoperation more than 1 month after original operation (33530)
32%Service-mix similarityView profile →

Todd Guynn, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
30%Service-mix similarityView profile →

Takeyoshi Ota

Cardiac Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
29%Service-mix similarityView profile →

Khaled Abdelhady, M.D.

Cardiovascular Disease (Cardiology) · General Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
28%Service-mix similarityView profile →

Kalvin Cheuk Hang Lung, M.D., M.SC.

Cardiac Surgery · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
27%Service-mix similarityView profile →

Stephen Francis Chiu

Cardiac Surgery · Pediatric Medicine · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
26%Service-mix similarityView profile →

Christopher Wigfield, MD, MD, FRCS

Cardiac Surgery · Thoracic Surgery · Vascular Surgery (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
24%Service-mix similarityView profile →

Samuel Suk Kim, MD

Cardiac Surgery · Surgical Oncology · Thoracic Surgery (CMS) · Chicago, IL

Shared published services
2 shared services · view billing descriptions
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
23%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.