Nitin K. Ahuja, MD, MS
Gastroenterology
Accepting new patients
Sees patients age 18 and up
Penn Gastroenterology Perelman
Make an appointmentCall 215-349-8222
Headshot of Nitin K. Ahuja, MD, MS
Penn Medicine Provider

About me

  • Director, Program in Neurogastroenterology and Motility
  • Associate Professor of Clinical Medicine (Gastroenterology)

Education and training

  • Medical School: University of Michigan
  • Residency: University of Virginia Health System
  • Fellowship: Johns Hopkins University School of Medicine

What my patients think about me

Average Rating

186 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

January 2026
he knows this area extremely well well.
January 2026
very patient, thorough and kind.
January 2026
he is knowledgeable, thorough and truly listens to his patients while offering several care options.
January 2026
thank you

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Ahuja is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Rosenthal B, Zoll B, Ryan HN, Toto E, Reynolds JC, Ahuja NK Comparing small intestinal bacterial overgrowth and intestinal methanogen overgrowth: a retrospective cohort study , Gastro Hep Advances, 2(7): 2023,925-927

NK Ahuja The therapeutic inventory: a lodestone for complex motility encounters , Gastro Hep Advances, 5(3): 2026

Ahuja NK Looking Behind the Veil , The New York Review of Books: 2025

Khanna T, Itzoe M, Mukherjee J, Ahuja NK Concomitant use of prescription-based agents for chronic constipation: a single-center retrospective study , Gastro Hep Advances, 4(10): 2025,1-3

Hewlett KK, PeBenito A, Hecht AL, Tiffany C, Tanes C, Glover RC, Friedman ES, Reynolds JC, Bittinger K, Wu GD, Ahuja NK, Zackular JP Dietary fiber modulates the window of susceptibility to Clostridioides difficile infection , Gastroenterology, 169(5): 2025,970-982

Brenner DM, Sayuk GS, Cash BD, Harris LA, Ahuja NK, Deutsch JK, Yang Y, Zhao S, Rosenbaum DP, Lembo AJ Tenapanor improves abdominal symptoms irrespective of changes in complete spontaneous bowel movement frequency in adults with irritable bowel syndrome with constipation , Digestive Diseases , 43(2): 2025,146-157

Ahuja A, Ahuja NK Preparing the next generation of gastroenterologists to tackle climate change , Clinical Gastroenterology and Hepatology, 23(1): 2025,7-10

Ahuja NK Gut Instincts , The New York Review of Books: 2023

Bor S, Kalkan IH, Savarino E, Rao S, Tack J, Pasricha J, Cangemi D, Schol J, Karunaratne T, Ghisa M, Ahuja NK, Lacy B Prokinetics – safety and efficacy: The European Society of Neurogastroenterology and Motility/The American Neurogastroenterology and Motility Society expert review , Neurogastroenterology and Motility, 36(5): 2024,e14774

Shah ED, Ahuja NK, Brenner DM, Chan WW, Curley MA, Nee J, Iturrino-Moreda J, Staller K, Saini CD, Chey WD Optimizing the management algorithm for adults with functional constipation failing a fiber/laxative trial in general gastroenterology: cost-effectiveness and cost-minimization analysis , American Journal of Gastroenterology, 119(2): 2024,342-352