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Compare the published Medicare service mix of Ephraim E Nsien, MD with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

SUGAR LAND, TX · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nasrullah Manji, M.D.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
48%Service-mix similarityView profile →

Shaheer Ahmed Siddiqui, M.D.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
46%Service-mix similarityView profile →

Malcolm Khodadad Irani, M.D.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
43%Service-mix similarityView profile →

Abraham Chacko, D.O.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
30%Service-mix similarityView profile →

Samuel Akinyeye, MD

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Diagnostic exam of large bowel using a flexible endoscope (45378)
24%Service-mix similarityView profile →

Altaib Al Yassin

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
22%Service-mix similarityView profile →

Pragnesh Jitendrabhai Patel, MD

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
22%Service-mix similarityView profile →

Stanley Howard Stein, M.D.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Diagnostic exam of large bowel using a flexible endoscope (45378)
  • Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (43249)
18%Service-mix similarityView profile →

Nisreen Husain, M.D.

Gastroenterology · Internal Medicine (CMS) · Sugar Land, TX

Shared published services
1 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
12%Service-mix similarityView profile →

Charles Gia Phan, M.D.

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
1 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
11%Service-mix similarityView profile →

Maryann Osayande

Gastroenterology (CMS) · Sugar Land, TX

Shared published services
1 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
10%Service-mix similarityView profile →

Gregory L. Shannon, M.D.

Gastroenterology · Internal Medicine (CMS) · Sugar Land, TX

Shared published services
1 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
9%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.