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Compare the published Medicare service mix of Haitham T Shaheen, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS).

THE WOODLANDS, TX · Exact areaEdit location

2024 published service data · 5 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andres E Reyes, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · The Woodlands, TX

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
84%Service-mix similarityView profile →

Shivaramaiah Shashikumar, MD

Critical Care (Intensivists) · Internal Medicine (CMS) · The Woodlands, TX

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
75%Service-mix similarityView profile →

Daniel Rhodes Kievlan, M.D.

Critical Care (Intensivists) · Emergency Medicine (CMS) · The Woodlands, TX

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
68%Service-mix similarityView profile →

Nathaniel Conley Cassell, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · The Woodlands, TX

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
59%Service-mix similarityView profile →

Zoulficar Kobeissi, MD

Critical Care (Intensivists) · Internal Medicine (CMS) · The Woodlands, TX

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
48%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.