Gastroenterology & Nutrition

The Division of Gastroenterology & Nutrition specializes in the diagnosis and treatment of nutritional and gastrointestinal problems, including:

  • inflammatory bowel disease (Crohn’s disease, ulcerative colitis)
  • irritable bowel disease
  • reflux disease
  • chronic diarrhea
  • constipation
  • liver diseases
  • celiac disease
  • eosinophilic esophagitis
  • nutrition
  • obesity
  • failure to thrive
  • abdominal pain
  • pancreatic diseases
  • nausea & vomiting
  • Hirschsprung’s disease

A qualified and diverse staff provides evaluation and diagnosis for infants, children and adolescents with diseases involving the gastrointestinal tract and/or liver, as well as nutrition support services.

We prevent, diagnose, and treat gastrointestinal, nutritional, hepatic and pancreatic disease in children from birth through young adulthood. All providers strive to provide the best medicine for your child and use evidence-based medicine and national algorithms when available.

Providing pediatric gastroenterology services and procedures on an outpatient basis, including:

  • 24 pH impedance
  • anorectal manometry
  • capsule endoscopy
  • colonoscopy and preps
  • esophageal manometry
  • liver biopsy
  • percutaneous gastrostomy tube placement and management
  • rectal suction biopsy
  • upper endoscopy
  • nutritional counseling (for under and overweight children)

Gastroenterology Laboratory (Special Services)

Our Division has a full-service GI laboratory. Testing includes the following:

  • disaccharidase determination
  • pancreatic enzyme determinations (pancreatic insufficiency)
  • fecal alpha-1 antiprypsin analysis (protein-losing enteropathy)
  • endomysial antibody with tier (serum test for celiac disease)
  • anti- neutrophil cytoplasmic antibodies (P-ANCA and C-ANCA)
  • H. Pylori antibody testing (ELISA method); H. Pylori (CLOTEST)
  • hydrogen breath testing for lactose intolerance and/or bacterial overgrowth

Team Members

Division Manager/Fellowship Program Administrator
Lorraine Esene

Nurse Practitioners
Anita Crawley, RN, CPNP
Laura White, FNP-BC, MSN, RN

Registered Nurse
Natalie Southard, RN, BSN

Procedure Nurses
Lisa Missert, RN
Melissa Severyn, RN
Cathy Williams, RN

Quality Assurance and Customer Service Coordinator
Erin Misener, LPN

Registered Dietitians
Georgina Bojczuk, RD, CSP
Kelly Savage, MSRD, CNSC

Outpatient Locations:

Conventus
1001 Main Street
4th Floor
Buffalo, NY 14203

University Commons
1404 Sweet Home Road
Suite 5
Amherst, NY 14228

Southwestern Office Park
4535 Southwestern Blvd.
Suite 712
Hamburg, NY 14075

Contact Us:

Office: 716.323.0080
Fax: 716.323.0295