Gastroenterology in Derry, NH
4 verified gastroenterology doctors in Derry.
Gastroenterologists specialize in the digestive system, treating conditions of the stomach, intestines, liver, and pancreas.
NPPES tenure ≠ clinical experience. "Years on NPPES" is time since the physician first registered a National Provider Identifier, not time practicing medicine. Verify current license status with the state medical board.
Dr. Steven Taylor, MD
Gastroenterology
CMS Open Payments· No payments in 2023
Industry Payments
No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.
Dr. Knut Roalsvig, MD
Gastroenterology
CMS Open Payments· No payments in 2023
Industry Payments
No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.
Dr. Leon Mclean, MD
Gastroenterology
CMS Open Payments· $35,250 (2023)
Industry Payments (2023)
Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.
$35,250
Total received
79
Transactions
8
Paying companies
Top paying companies
Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total is higher than 96% of that group — among the highest recipients.
Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.
Payments to Leon Mclean do not imply any wrongdoing. Many are meals, education, or research support.
Dr. Steven Tsistrakis, MD
Gastroenterology
CMS Open Payments· $399.55 (2023)
Industry Payments (2023)
Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.
$399.55
Total received
20
Transactions
8
Paying companies
Top paying companies
Among the 17,272 gastroenterology doctors we've analyzed, about 63% received any industry payment (median $623 among those who did). This doctor's total ranks around the 62th percentile of that group.
Benchmark reflects doctors we've analyzed, not all US gastroenterology doctors.
Payments to Steven Tsistrakis do not imply any wrongdoing. Many are meals, education, or research support.