HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Stanley James Pietrak, M.D. with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

WASHINGTON, DC · Exact areaEdit location

2024 published service data · 46 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nadim Haddad

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
73%Service-mix similarityView profile →

Hemanth K Gavini, MD

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
69%Service-mix similarityView profile →

Arthur Nelson West, MD

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
66%Service-mix similarityView profile →

Walid Chalhoub, M.D.

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
64%Service-mix similarityView profile →

Raymond Janowski

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
61%Service-mix similarityView profile →

Julio Alejandro Salcedo, MD

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
56%Service-mix similarityView profile →

Ira David Shocket, MD

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
55%Service-mix similarityView profile →

Thomas M Loughney, MD

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
55%Service-mix similarityView profile →

Getachew Mekasha, M.D., PH.D.

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
54%Service-mix similarityView profile →

Ali Asif Khan, MD, MPH

Gastroenterology · Internal Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
52%Service-mix similarityView profile →

Gary William Thompson, MD

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
52%Service-mix similarityView profile →

Samuel A. Schueler, M.D.

Gastroenterology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
51%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.