A DIFFERENT WAY TO EXPLORE

Similar work.
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Compare the published Medicare service mix of Barry S Donner, MD with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

LAGUNA HILLS, CA · Exact areaEdit location

2024 published service data · 6 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Benjamin Menasheh Weinberg, MD

Gastroenterology · Internal Medicine (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
88%Service-mix similarityView profile →

Scott Hyunsoo Lee, M.D.

Gastroenterology (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
68%Service-mix similarityView profile →

Theodore Sy, MD

Gastroenterology · Internal Medicine (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
67%Service-mix similarityView profile →

Manish Prasad Shrestha, M.D.

Gastroenterology (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
64%Service-mix similarityView profile →

Dalia Al-Mudallal, M.D.

Gastroenterology · Internal Medicine (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
59%Service-mix similarityView profile →

Catherine Bao Ngo, M.D.

Gastroenterology · Internal Medicine (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
38%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.