Dr. Canio received his medical degree from Howard University College of Medicine in Washington, D.C. and completed his Internship, Residency and Fellowship at the Department of Internal Medicine and Division of Gastroenterology at the University of California at Davis Medical Center. He is Board Certified in both Internal Medicine and Gastroenterology. Dr. Canio has been in practice since 1997 and has been with Capitol G.I. since 2002. Dr. Canio sees patients in both our Carmichael and Roseville offices. Dr. Canio is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Gastritis, Familial Adenomatous Polyposis, Chronic Erosive Gastritis, Gastrectomy, and Colonoscopy.

Randell Vallero is a Gastroenterologist in Roseville, California. Dr. Vallero is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Barrett Esophagus, Gastrointestinal Bleeding, Gastrectomy, and Endoscopy. Dr. Vallero is currently accepting new patients.

Dr. Hsu received his medical degree from the University of Wales, College of Medicine, the United Kingdom, in 1985. He completed his Residency in Internal Medicine at the California Pacific Medical Center in San Francisco, California. Dr. Hsu received his G.I. Fellowship and Advanced Therapeutic Endoscopy Training at the University of California, Davis Medical Center (UCDMC). He is Board Certified in both Internal Medicine and Gastroenterology. Dr. Hsu has been in practice since 1989 and has been with Capitol G.I. since 2000. He served as Director of Endoscopy, G.I. Fellowship Training Program at UCDMC, and appointed Clinical Professor of Medicine since 2007. He is the current Governor of Northern California, American College of Gastroenterology and Co-Chair, CMAC of Northern California, Crohn's and Colitis Foundation. He has special interests in Barrett's Endoscopic Therapies, Endoscopic Retrograde Cholangiopancreatography, Colon Cancer Prevention, Inflammatory Bowel Disease, Intestinal Microbiome, and Fecal Microbiota Transplantation. Dr. Hsu sees patients in our Roseville office. Dr. Hsu is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Gas Bloat Syndrome, Gastrectomy, and Endoscopy.

Danny Yen is a Gastroenterologist in Roseville, California. Dr. Yen is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhagic Proctocolitis, Ulcerative Colitis, Gardner Syndrome, and Endoscopy. Dr. Yen is currently accepting new patients.

Dr. Parikh received his medical degree from N.D.M.V.P. Samaj’s Medical College in Nashik, India and completed his Internship at Nashik Civil Hospital. He completed his Residency at St. Joseph Mercy Oakland Hospital in Pontiac, Michigan and his Fellowship at Wayne State University in Detroit, Michigan. Dr. Parikh is Board Certified in both Internal Medicine and Gastroenterology. He has been in practice since 2006 and has been with Capitol G.I. since 2009. Dr. Parikh sees patients in our Carmichael, Lincoln, and Roseville offices. Dr. Parikh is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Trichohepatoenteric Syndrome, Diarrhea, Swallowing Difficulty, and Endoscopy.

David Pompa is a Gastroenterologist in Roseville, California. Dr. Pompa is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Hemorrhoids, Diverticular Disease, and Gardner Syndrome. Dr. Pompa is currently accepting new patients.

Vadim Bul is a Gastroenterologist in Rocklin, California. Dr. Bul is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Tenesmus, Familial Adenomatous Polyposis, Diarrhea, and Viral Gastroenteritis. Dr. Bul is currently accepting new patients.

Thomas Hopkins is a primary care provider, practicing in Internal Medicine in Roseville, California. Dr. Hopkins is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Danon Disease, Pompe Disease, Obesity, and Hypertension. Dr. Hopkins is currently accepting new patients.

John Doolittle is a primary care provider, practicing in Family Medicine in Roseville, California. Dr. Doolittle is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Insomnia, Type 2 Diabetes (T2D), High Cholesterol, and Sciatica. Dr. Doolittle is currently accepting new patients.

Dr. Rangi received his medical degree from Government Medical College in Amritsar, India, and completed his Internship, Residency, and Fellowship at Wayne State University in Detroit, Michigan.  He is Board Certified in both Internal Medicine and Gastroenterology.  Dr. Rangi has been in practice since 1997 and has been with Capitol G.I. since 2005.  Dr. Rangi sees patients in our Roseville office. Dr. Rangi is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Gastrectomy.

Roy Harris is a primary care provider, practicing in Family Medicine in Rocklin, California. Dr. Harris is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are High Cholesterol, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Harris is currently accepting new patients.

Dr. Madan received his medical degree from Punjabi University in Patiala, India and completed his Internship at Government Medical College in Patiala, India. He completed his Residency at Mercy Hospitaland Medical Center in Chicago, Illinois, and his Fellowship at Southern Illinois University in Carbondale, Illinois. Dr. Madan is Board Certified in both Internal Medicine and Gastroenterology. He has been in practice since 2000 and has been with Capitol G.I. since 2010. Dr. Madan sees patients in both our Carmichael and Roseville offices. Dr. Madan is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Chronic Idiopathic Constipation (CIC), Endoscopy, and Gastrectomy.

William Chen is a Gastroenterologist in Roseville, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Gastrointestinal Bleeding, Esophageal Varices, Cholangitis, Endoscopy, and Colonoscopy. Dr. Chen is currently accepting new patients.

Nava Nasr is a primary care provider, practicing in Hospital Medicine in Roseville, California. Dr. Nasr is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Sepsis, Ogilvie Syndrome, Heart Attack, and Peptic Ulcer.

Anna Abalos is a primary care provider, practicing in Family Medicine in Roseville, California. Dr. Abalos is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Generalized Anxiety Disorder (GAD).

Jakkidi Reddy is a primary care provider, practicing in Internal Medicine in Roseville, California. Dr. Reddy is rated as an Advanced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are High Cholesterol, Coronary Heart Disease, Hypothyroidism, Hip Replacement, and Vertebroplasty.

I provide care for the patient rather than just treating the disease. Dr. Toussi is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Folate Deficiency, Vitamin B12 Deficiency Anemia, Multiple Carboxylase Deficiency, and Subacute Combined Degeneration.

We are committed to academic excellence in education and promoting preventive medicine. Dr. Davies is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are Helicobacter Pylori Infection, Bacterial Gastroenteritis, Encopresis, and Celiac Disease.

Philosophy of care: I strive to provide a welcoming and collaborative environment for my patients to try to address their concerns and provide the highest level of evidence-based care.I became a medical provider because I found learning from others a very rewarding experience and to try to make a positive impact in the lives of others and my community. Dr. Massaro is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Childhood Volvulus, Endoscopy, and Gastrectomy.

Specializing in Internal Medicine procedures. Dr. Cheema is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. His top areas of expertise are Hyperemesis Gravidarum, Malnutrition, Relapsing Multiple Sclerosis (RMS), and Type 2 Diabetes (T2D).