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Compare the published Medicare service mix of Sasikumar Vishwanath, M.D. with clinicians in the same registry specialty: Internal Medicine.

FLORALA, AL · 25 milesEdit location
Within 25 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 · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joshua Kaleb Kolmetz, M.D.

Internal Medicine · Crestview, FL

Shared published services
3 shared services · view billing descriptions
  • Injection of drug or substance under skin or into muscle (96372)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
46%Service-mix similarity~23.0 milesView profile →

Vicente Arturo Mendez, MD

Internal Medicine · Crestview, FL

Shared published services
3 shared services · view billing descriptions
  • Injection of drug or substance under skin or into muscle (96372)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • 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~18.7 milesView profile →

Rex Allen Butler, M.D.

Internal Medicine · Andalusia, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
39%Service-mix similarity~21.3 milesView profile →

Wayne E. Campbell, M.D.

Internal Medicine · Crestview, FL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
39%Service-mix similarity~23.0 milesView profile →

Yongkuma C Yongkuma, M.D

Internal Medicine · Andalusia, AL

Shared published services
3 shared services · view billing descriptions
  • Injection of drug or substance under skin or into muscle (96372)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
32%Service-mix similarity~21.3 milesView profile →

Alexander Neiman, MD

Internal Medicine · Defuniak Springs, FL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
29%Service-mix similarity~14.1 milesView profile →

William Hayden Childs, M.D.

Internal Medicine · Samson, AL

Shared published services
1 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
26%Service-mix similarity~17.2 milesView profile →

Steven Scott Donchey, MD

Internal Medicine · Crestview, FL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
20%Service-mix similarity~18.7 milesView profile →

Khalid Mohamed Moussa, MD

Internal Medicine · Crestview, FL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
18%Service-mix similarity~18.7 milesView profile →

David L Harrison, MD

Internal Medicine · Crestview, FL

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
12%Service-mix similarity~18.7 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.