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Compare the published Medicare service mix of John Keith Abbott, M.D. with clinicians in the same registry specialty: Surgery.

ROWLETT, TX · 10 milesEdit location
Within 10 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 · 17 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Walter Stuart Johnston, M.D.

Surgery · Richardson, TX

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Removal of gallbladder with x-ray study of bile ducts using an endoscope (47563)
75%Service-mix similarity~9.1 milesView profile →

Russ Deacon Birdwell, M.D.

Surgery · Richardson, TX

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
63%Service-mix similarity~9.1 milesView profile →

Thomas Tien-Yau Wang, MD

Surgery · Richardson, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
54%Service-mix similarity~9.1 milesView profile →

Ashley Lindley Egan, M.D.

Surgery · Rockwall, TX

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Repair of groin hernia using an endoscope (49650)
51%Service-mix similarity~7.0 milesView profile →

Katherine R Makohon, M.D.

Surgery · Rockwall, TX

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
50%Service-mix similarity~8.7 milesView profile →

Houssam Osman, M.D.

Surgery · Richardson, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
49%Service-mix similarity~9.1 milesView profile →

Ronald Dennis Baxter, M.D.

Surgery · Richardson, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
49%Service-mix similarity~9.1 milesView profile →

Caraleigh Nicole Buxie, MD

Surgery · Rockwall, TX

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
42%Service-mix similarity~8.7 milesView profile →

Mark Louis Bailey, M.D.

Surgery · Richardson, TX

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
40%Service-mix similarity~9.1 milesView profile →

Joshua Mcmillan Mark, M.D.

Surgery · Rockwall, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
40%Service-mix similarity~7.0 milesView profile →

Jon Harris, M.D.

Surgery · Rockwall, TX

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)
  • Repair of groin hernia using an endoscope (49650)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
35%Service-mix similarity~7.0 milesView profile →

James S Kohn, M.D.

Surgery · Dallas, TX

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
32%Service-mix similarity~9.5 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.