Dr. Kelly J. O\'Callahan
- Gender: Female
- Experience: 28 years
- Graduated from: University Of Massachusetts Medical School
- Graduation year: 1993
- Sole propriator: No
- NPI: 1427056795
Dr. Kelly J. O\'Callahan M.D.
Gastroenterologist
She is located at 100 Central Street Floor 4 in Worcester, MA 01608. Can help patients with the following: Acute Pain, Bladder Control, Carcinoid Tumor, Gastroparesis, Portal Hypertension, Prescription Refill. Her National Provider Identifier (NPI) number is 1427056795. Appointment can be made via the phone number (508) 831-0708. She is affiliated with 2 practices and 2 hospitals.
Conditions treated
Dr. Kelly J. O\'Callahan, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Kelly J. O\'Callahan.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Kelly J. O\'Callahan
Medicare Enrollment
Dr. Kelly J. O\'Callahan is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: New England Gastroenterology Associates, Pc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated in 1993Additional Specialities
- Internist
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Questions & Answers
Does Dr. Kelly J. O\'Callahan have affiliation with practices?
Dr. Kelly J. O\'Callahan is affiliated with New England Gastroenterology Associates. For the full list of practices see this list.
Has Dr. Kelly J. O\'Callahan affiliation with hospitals?
Dr. Kelly J. O\'Callahan is affiliated with UMASS MEMORIAL MEDICAL CENTER/UNIVERSITY CAMPUS. For the full list of hospitals see this list.
Where can you meet with Dr. Kelly J. O\'Callahan?
Dr. Kelly J. O\'Callahan's office is located at 100 Central Street Floor 4 in Worcester, MA 01608.
What conditions does Dr. Kelly J. O\'Callahan treat?
Dr. Kelly J. O\'Callahan provides treatment for Acute Pain, Bladder Control, Carcinoid Tumor, Gastroparesis, Portal Hypertension, Prescription Refill. For the full list see this list.