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

ELMHURST, IL · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

George Stathopoulos, MD

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
94%Service-mix similarityView profile →

Shakthi D Kumar, MD

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
92%Service-mix similarityView profile →

Jason Bradley Kramer, M.D.

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
86%Service-mix similarityView profile →

Allison Patricia Rzepczynski, MD

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
86%Service-mix similarityView profile →

Danish Shahab, M.D.

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
79%Service-mix similarityView profile →

Atena Lodhi, MD

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
79%Service-mix similarityView profile →

Michael Greenspan, MD

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
78%Service-mix similarityView profile →

Christopher A Boutin, MD

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
71%Service-mix similarityView profile →

Karen Hsia Ma, MD, PHARMD

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Ashish K Arora, MD

Gastroenterology (CMS) · Elmhurst, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
47%Service-mix similarityView profile →

Arouj Bajwa, MD

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
1 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
23%Service-mix similarityView profile →

Eric Michael Montminy, MD

Gastroenterology · Internal Medicine (CMS) · Elmhurst, IL

Shared published services
2 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
20%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.