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Compare the published Medicare service mix of Chalana Umayanganee Gunawardena, MD with clinicians in the same registry specialty: Internal Medicine.

FRANKLIN, OH · 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 · 42 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Motaz Hossein, M.D.

Internal Medicine · Middletown, OH

Shared published services
2 shared services · view billing descriptions
  • 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)
49%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Hema Kumari Tamiri, MD

Internal Medicine · Middletown, OH

Shared published services
2 shared services · view billing descriptions
  • 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)
47%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Rajaratnam Pathmarajah, MD

Internal Medicine · Middletown, OH

Shared published services
2 shared services · view billing descriptions
  • 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)
46%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Michele Lynn Flack, D.O.

Internal Medicine · Miamisburg, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
45%Service-mix similarity~6.9 milesView profile →

Stephen M Hudson, M.D.

Internal Medicine · Miamisburg, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
42%Service-mix similarity~6.9 milesView profile →

Chirag Ashvin Shah, MD

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
37%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Juan M Remirez, M.D.

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
37%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Pavani Dantala, MD

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
36%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Lotfi F Mamlouk, MD

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
36%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Richard Brian Boster, MD

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
35%Service-mix similarityZIP centers less than 0.1 mi apartView profile →

Huda Jalal Khanzada

Internal Medicine · Dayton, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarity~8.6 milesView profile →

Sreevani Gollamudi, MD

Internal Medicine · Middletown, OH

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarityZIP centers less than 0.1 mi apartView 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.