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Compare the published Medicare service mix of Alexander Andrew Chapman, M.D. with clinicians in the same registry specialty: General Surgery (CMS).

MANSFIELD, OH · 100 milesEdit location
Within 100 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 54 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Lillianne Stanitsas, M.D.

General Surgery (CMS) · Youngstown, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
92%Service-mix similarity~99.7 milesView profile →

Heath A Dorion, M.D.

General Surgery (CMS) · Youngstown, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
86%Service-mix similarity~99.7 milesView profile →

Yizhi Shan, M.D.

Critical Care (Intensivists) · General Surgery (CMS) · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Critical care, first 30-74 minutes (99291)
83%Service-mix similarity~60.6 milesView profile →

Katie Francis, M.D.

General Surgery (CMS) · Akron, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
82%Service-mix similarity~56.6 milesView profile →

Ryan Lee Lucero

General Surgery (CMS) · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
81%Service-mix similarity~60.6 milesView profile →

Allyn Marie Checovich, M.D.

General Surgery (CMS) · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
77%Service-mix similarity~60.6 milesView profile →

James Alford Flippin, MD

Critical Care (Intensivists) · General Surgery (CMS) · Cleveland, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Critical care, first 30-74 minutes (99291)
77%Service-mix similarity~63.5 milesView profile →

Farid Fuad Muakkassa, M.D.

Critical Care (Intensivists) · General Surgery (CMS) · Akron, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
77%Service-mix similarity~54.9 milesView profile →

Brian Scott Gruber, MD

General Surgery (CMS) · Youngstown, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
77%Service-mix similarity~99.7 milesView profile →

Lana Jesic, D.O.

General Surgery (CMS) · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
74%Service-mix similarity~60.6 milesView profile →

Gregory S Huang, MD

General Surgery (CMS) · Youngstown, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarity~99.7 milesView profile →

Thanh Van Nguyen, D.O.

General Surgery (CMS) · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
72%Service-mix similarity~60.6 milesView 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 approximate distance 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.