Dr. Theodore Anthony Tollivoro
Dr. Theodore A. Tollivoro
Last updated: Aug 5, 2025

Dr. Theodore A. Tollivoro

  • Gender: Male
  • Experience: 8 years
  • Graduation year: 2013
  • Sole propriator: Yes
  • NPI: 1811230147

Dr. Theodore A. Tollivoro M.D.

Gastroenterologist

He is located at 9900 Southeast Sunnyside Road in Clackamas, OR 97015. Can help patients with the following: Barrett's Esophagus, Carcinoid Tumor, Inflammatory Bowel Disease (IBD), Pancreatic Cysts, Primary Sclerosing Cholangitis (PSC), Swallowing Disorders. His National Provider Identifier (NPI) number is 1811230147. Appointment can be made via the phone number (800) 813-2000. He is affiliated with 1 hospitals.

Conditions treated

Dr. Theodore Anthony Tollivoro, 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. Theodore A. Tollivoro.

  • Abdominal Pain
  • Anemia
  • Ascites
  • Autoimmune Hepatitis
  • Bad Breath
  • Barrett's Esophagus
  • Bleeding Varices
  • Blood in Stool
  • Botulism
  • Cancer
  • Carcinoid Tumor
  • Celiac Disease
  • Childhood Obesity
  • Cirrhosis
  • Clostridium Difficile Colitis
  • Colitis
  • Colonoscopy
  • Constipation
  • Crohn's Disease
  • Diarrhea
  • Diverticulosis
  • Eosinophilic Esophagitis
  • Esophagitis
  • Fatty Liver Disease
  • Feeding and Swallowing
  • Food Allergies
  • Gallbladder Pain
  • Gastric Bypass Surgery
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastroparesis
  • Heartburn
  • Helicobacter Pylori Infection
  • Hemorrhoids
  • Hepatitis A (HAV)
  • Hepatitis B (HBV)
  • Hepatitis C (HCV)
  • Indigestion
  • Inflammatory Bowel Disease (IBD)
  • Internal Bleeding
  • Intussusception
  • Irritable Bowel Syndrome (IBS)
  • Lactose Intolerance
  • Leaky Gut Syndrome
  • Liver Disease
  • Nausea and Vomiting
  • Pancreas Divisum
  • Pancreatic Cancer
  • Pancreatic Cysts
  • Pancreatitis
  • Peptic Ulcer
  • Portal Hypertension
  • Primary Biliary Cirrhosis (PBC)
  • Primary Sclerosing Cholangitis (PSC)
  • Stomach Cancer
  • Swallowing Disorders
  • Ulcerative Colitis

Medicare Enrollment

Dr. Theodore A. Tollivoro is enrolled to bill Medicare as a Practitioner - Gastroenterology (also registered under: Practitioner - Internal Medicine) .

Bills through: Kaiser Foundation Health Plan Of The Northwest

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.

Payments received

Drug payment

Aries Pharmaceuticals $138
Gilead Sciences $104
Janssen $85

Other

Food and Beverage $436

Studies

Graduated in 2013

Additional Specialities

  • Resident

Affiliated hospitals

JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
1601 YGNACIO VALLEY RD
WALNUT CREEK, 94598 CA
(925) 939-3000

Looking for more Gastroenterologists?

Out of the 11 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.

Dr. Elaine Rose Gossman
  • Gender: Female
  • Address: 9900 Southeast Sunnyside Road Clackamas, 97015, OR
Dr. Ben Jasper Bryant
  • Gender: Male
  • Address: 9900 Southeast Sunnyside Road Clackamas, 97015, OR
Dr. Susan Esther Johnson
  • Gender: Female
  • Address: 9701 Southwest Barnes Road Suite 300 Portland, 97225, OR
Dr. Thomas P. Huber
  • Gender: Male
  • Address: 1510 Division Street Suite 210 Oregon City, 97045, OR
Dr. Samita Garg
  • Gender: Female
  • Address: 9500 Euclid Avenue Cleveland, 44195, OH
Dr. Wayne Wong
  • Gender: Male
  • Address: 3500 North Interstate Avenue Portland, 97227, OR
Dr. Karl H. Kim
  • Gender: Male
  • Address: 19250 Southwest 90th Avenue Tualatin, 97062, OR
Dr. David D. Clarke
  • Gender: Male
  • Address: 9900 Southeast Sunnyside Road Clackamas, 97015, OR
Dr. Kamran Aghaie
  • Gender: Male
  • Address: 9900 Southeast Sunnyside Road Clackamas, 97015, OR
Dr. Jeffrey Stephen Olson
  • Gender: Male
  • Address: 9900 Southeast Sunnyside Road Clackamas, 97015, OR

Questions & Answers

Has Dr. Theodore Anthony Tollivoro affiliation with hospitals?

Dr. Theodore Anthony Tollivoro is affiliated with JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS.

What conditions does Dr. Theodore Anthony Tollivoro treat?

Dr. Theodore Anthony Tollivoro provides treatment for Barrett's Esophagus, Carcinoid Tumor, Inflammatory Bowel Disease (IBD), Pancreatic Cysts, Primary Sclerosing Cholangitis (PSC), Swallowing Disorders. For the full list see this list.

Does Dr. Theodore Anthony Tollivoro accept insurance?

Unfortunately we don't have any information if Dr. Theodore Anthony Tollivoro accepts insurance.

Where can you meet with Dr. Theodore Anthony Tollivoro?

Dr. Theodore Anthony Tollivoro's office is located at 9900 Southeast Sunnyside Road in Clackamas, OR 97015.