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

BALTIMORE, MD · Exact areaEdit location

2024 published service data · 91 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Raymond E. Kim, MD

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (43237)
84%Service-mix similarityView profile →

Eric M Goldberg, M.D.

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
75%Service-mix similarityView profile →

Abdulhameed Al-Sabban, MBBS

Gastroenterology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (43237)
74%Service-mix similarityView profile →

Joshua Seth Forman, M.D.

Gastroenterology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (43237)
73%Service-mix similarityView profile →

Megan Dunnigan Willard, MD

Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Biopsy of large bowel using a flexible endoscope (45380)
65%Service-mix similarityView profile →

Albert Steven Fleisher, M.D.

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
64%Service-mix similarityView profile →

Saowanee Ngamruengphong, MD

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
63%Service-mix similarityView profile →

Ernest Tsao, MD

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
61%Service-mix similarityView profile →

Jonathan B Schreiber, MD

Gastroenterology · Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Biopsy of large bowel using a flexible endoscope (45380)
61%Service-mix similarityView profile →

Arjun Vaid, M.D.

Gastroenterology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Biopsy of large bowel using a flexible endoscope (45380)
60%Service-mix similarityView profile →

Raymond Keith Cross, MD

Gastroenterology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Biopsy of large bowel using a flexible endoscope (45380)
60%Service-mix similarityView profile →

Nauroz Syed, M.D.

Internal Medicine (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Biopsy of large bowel using a flexible endoscope (45380)
58%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.