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

LA · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kelly Ryder, M.D.

Internal Medicine · Alexandria, LA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
69%Service-mix similarityView profile →

Walter Michael Bortz, M.D.

Internal Medicine · Marrero, LA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
58%Service-mix similarityView profile →

Corey G. Albritton, M.D.

Internal Medicine · Delhi, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
43%Service-mix similarityView profile →

Venkat N. Mallepalli, M.D.

Internal Medicine · Monroe, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
42%Service-mix similarityView profile →

Donald Scott Haynes, M.D.

Internal Medicine · Homer, LA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
37%Service-mix similarityView profile →

Peter W Karam, M.D.

Internal Medicine · Lake Charles, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
36%Service-mix similarityView profile →

Lisa A Diehl

Internal Medicine · Baton Rouge, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
36%Service-mix similarityView profile →

Michelle Lynne Blake, M.D.

Internal Medicine · Monroe, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
35%Service-mix similarityView profile →

Erica M Brown-Jackson, MD

Internal Medicine · Metairie, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
33%Service-mix similarityView profile →

Christopher Morgan Toups

Internal Medicine · Metairie, LA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
33%Service-mix similarityView profile →

Chad Allen Vincent, M.D.

Internal Medicine · Lafayette, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
32%Service-mix similarityView profile →

Chatura Davanmini Jayasinghepatirane, MD

Internal Medicine · Shreveport, LA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
32%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.