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

BROWNSVILLE, TX · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Waqar Hussain, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
73%Service-mix similarityView profile →

Femi Layiwola, MD

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarityView profile →

Christian Edward Ellis, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
30%Service-mix similarityView profile →

Hector Hugo Arredondo Nino, MD

Internal Medicine · Brownsville, TX

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
27%Service-mix similarityView profile →

Jose Luis Villalobos, MD

Internal Medicine · Brownsville, TX

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
24%Service-mix similarityView profile →

Ahmad Karkoutly, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
24%Service-mix similarityView profile →

Nisar Hussain, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
22%Service-mix similarityView profile →

Joey Andrew Ugalino, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
17%Service-mix similarityView profile →

Miguel Angel Molinas, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Transitional care management services for problem of high complexity (99496)
16%Service-mix similarityView profile →

Juan Manuel Martinez, M.D.

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Transitional care management services for problem of high complexity (99496)
  • Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)
15%Service-mix similarityView profile →

Rafael Otero

Internal Medicine · Brownsville, TX

Shared published services
2 shared services · view billing descriptions
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
14%Service-mix similarityView profile →

Jorge R Guevara, MD

Internal Medicine · Brownsville, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
13%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.