Gastrointestinal Specialties


Dr. Peter Muscarella

Specialty in Gastrointestinal and Abdominal Disorders

Gastrointestinal Surgery at Niagara Falls Memorial Medical Center is dedicated to providing outstanding clinical care through a multidisciplinary approach.  We specialize in advanced surgical and minimally invasive treatments for various conditions.

Our team prides itself on offering innovative and effective medical solutions, and our team of surgeons are renowned experts in their respective fields.

Dr. Peter Muscarella is recognized for his groundbreaking work, employing cutting-edge techniques for complex procedures, and contribution to the national surgical community.



Foregut conditions refer to medical issues that can affect the organs and structures that develop from the foregut during embryonic development. These conditions primarily involve the esophagus, stomach, liver, gallbladder, and pancreas. Some common foregut conditions include:

  • Strictures and ulcers
  • Hiatal hernia
  • Gastroesophageal reflux disease (GERD)
  • Esophageal motility disorders
  • Achalasia
  • Esophageal cancer
  • Gastroesophageal junction (GEJ) cancer
  • Gastric cancer
  • Peptic ulcer disease
  • Gastric ulcer
  • Gastric gastrointestinal stromal tumor (GIST)
  • Duodenal mass
  • Open and percutaneous gastrostomy (PEG) feeding tube placement and management
  • Esophagogastroduodenoscopy (EGD)
  • Esophageal stent placement for benign and malignant strictures
  • Endoscopic placement of nasojejunal feeding tubes



Colorectal conditions refer to medical issues that affect the colon (large intestine) and the rectum, which are parts of the gastrointestinal system responsible for processing and eliminating waste from the body. These conditions can vary in severity, ranging from mild and manageable to serious and potentially life-threatening. Some common colorectal conditions include:

  • Colorectal Cancer
  • Colorectal Polyps
  • Inflammatory Bowel Disease (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Diverticular Disease
  • Anal Fissures
  • Hemorrhoids
  • Colitis
  • Colonic Inertia
  • Fecal Incontinence


Pancreatitis is a medical condition characterized by inflammation of the pancreas, which is a large gland located behind the stomach. The pancreas plays a vital role in the digestive process by producing digestive enzymes that help break down food in the small intestine and hormones, including insulin, which regulates blood sugar levels.

Pancreatitis can occur in both acute and chronic forms:

  • Tumors and masses
  • Pancreatic cancer
  • Pancreatic cystic lesions
  • Pancreatic duct abnormalities (stones, strictures, disruptions)
  • Acute pancreatitis
  • Chronic pancreatitis
  • Pancreatic endocrine tumors


Gallbladder and Biliary Tract

  • Gallstones/cholecystitis
  • Obstructive jaundice
  • Choledochal cysts
  • Gallbladder polyps
  • Biliary colic
  • Common bile duct stones/choledocholithiasis
  • Cholangiocarcinoma
  • Cholangitis
  • Biliary strictures and fistulas




Of Americans are impacted by GERD


Will develop into Barrett’s Esophagus, a precursor to esophageal cancer


of those diagnosed with esophageal cancer will die


  • Small bowel obstruction
  • Small bowel tumors
  • Retroperitoneal cyst and mass
  • Gastrointestinal bleeding


Abdominal Wall Hernias

  • Incisional and ventral hernias
  • Umbilical hernia
  • Inguinal hernia



  • Liver masses
  • Liver cysts
  • Hemangiomas
  • Liver tumors
  • Liver abscess



  • Splenic cysts and masses
  • Splenic abscess
  • Splenic rupture/trauma
  • Unexplained splenomegaly
  • Idiopathic thrombocytopenic purpura (ITP)
  • Hereditary spherocytosis
  • Autoimmune hemolytic anemia


Endoscopy to treat, diagnose, and screen

Endoscopy is a medical procedure in which a flexible, thin tube with a camera and light on its end, called an endoscope, is used to visualize and examine the internal structures of various organs in the body. Endoscopy can be performed through natural openings, such as the mouth or anus (upper endoscopy and colonoscopy, respectively), or through small incisions in the skin (laparoscopy). The procedure helps in the diagnosis, treatment, and monitoring of various conditions affecting different organs.

Experienced and recognized

Dr. Muscarella



Respected Amongst Peers

Has co-authored more than 100 peer-reviewed articles and book chapters. He currently serves on the editorial boards for the nationally recognized journals “Surgery” and the “Journal of Surgical Research”



Dr. Muscarella participates in research projects and clinical trials 


Director of Pancreatic Surgery

Director of Pancreatic Surgery and the General Surgery Site Director for the Einstein campus at the Montefiore Medical Center

Niagara Falls Surgeon

Chief of Surgery, Peter Muscarella II, M.D.

Gastrointestinal & General Surgery

Dr. Muscarella participated in a two-year pancreatic cancer research fellowship during his residency training at The Ohio State University where he subsequently served as an Associate Professor of Surgery. 

Dr. Muscarella graduated from the University of Rochester with a degree in Microbiology prior to receiving his medical degree from New York Medical College.

To request an appointment, call 278-4400

Or fill out our online appointment request form here.

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