Overview
Dr. Mark M. Tsuchiyose is a board-certified gastroenterologist with over 35 years of experience treating complex gastrointestinal and liver disorders. He provides personalized, patient-centered care and performs advanced diagnostic and therapeutic endoscopy with a strong emphasis on safety, comfort, and long-term outcomes. His approach blends clinical precision with a deep commitment to understanding each patient’s full health picture.
Expanded his clinical model through formal training in functional and holistic medicine since 2014, focusing on root causes of chronic disease.
Developed targeted nutritional strategies to support pyloric valve function and help patients reduce bile-related injury and discontinue long-term PPI therapy safely.
At CDCH, improves liver health, reducing liver fat in nearly 90% of patients through metabolic and nutrition-focused interventions.
Advocates for physician support, community health, and public wellness while helping patients transition away from unnecessary long-term acid suppression.
Committed to compassionate, whole-person care.
Dr. Tsuchiyose is rated as an Experienced provider by MediFind in the treatment of Small Bowel Bacterial Overgrowth. His top areas of expertise are Exocrine Pancreatic Insufficiency, Angiodysplasia of the Colon, Indigestion, Gastrectomy, and Endoscopy.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- MEDICARE SNP
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
Accepted plan types not found. Please verify directly with the provider.
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MEDICARE MAPD
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
1850 Sullivan Ave, Suite 420, Daly City, CA 94015
Additional Areas of Focus
Dr. Tsuchiyose has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Genesis Healthcare Partners PC
Michelle Nguyen is a Gastroenterologist in Los Gatos, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Small Bowel Bacterial Overgrowth. Her top areas of expertise are Irritable Bowel Syndrome (IBS), Bacterial Gastroenteritis, Small Bowel Bacterial Overgrowth, and Exocrine Pancreatic Insufficiency.
Stanford Health Care
Irene Sonu is a Gastroenterologist in Stanford, California. Dr. Sonu is rated as a Distinguished provider by MediFind in the treatment of Small Bowel Bacterial Overgrowth. Her top areas of expertise are Gastroparesis, Gastroesophageal Reflux Disease (GERD), Gastric Dysmotility, Endoscopy, and Colonoscopy.
Stanford Health Care
Leila Neshatian is a Gastroenterologist in Redwood City, California. Dr. Neshatian is rated as a Distinguished provider by MediFind in the treatment of Small Bowel Bacterial Overgrowth. Her top areas of expertise are Bowel Incontinence, Irritable Bowel Syndrome (IBS), Neurogenic Bowel, Endoscopy, and Colonoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Angiodysplasia of the ColonDr. Tsuchiyose isAdvanced. Learn about Angiodysplasia of the Colon.
- DiarrheaDr. Tsuchiyose isAdvanced. Learn about Diarrhea.
- Exocrine Pancreatic InsufficiencyDr. Tsuchiyose isAdvanced. Learn about Exocrine Pancreatic Insufficiency.
- HemorrhoidsDr. Tsuchiyose isAdvanced. Learn about Hemorrhoids.
- IndigestionDr. Tsuchiyose isAdvanced. Learn about Indigestion.
- Non-Alcoholic Fatty Liver DiseaseDr. Tsuchiyose isAdvanced. Learn about Non-Alcoholic Fatty Liver Disease.
- Experienced
- Alcoholic CirrhosisDr. Tsuchiyose isExperienced. Learn about Alcoholic Cirrhosis.
- Anal FissureDr. Tsuchiyose isExperienced. Learn about Anal Fissure.
- Bacterial GastroenteritisDr. Tsuchiyose isExperienced. Learn about Bacterial Gastroenteritis.
- Barrett EsophagusDr. Tsuchiyose isExperienced. Learn about Barrett Esophagus.
- Benign Esophageal StrictureDr. Tsuchiyose isExperienced. Learn about Benign Esophageal Stricture.
- Childhood PancreatitisDr. Tsuchiyose isExperienced. Learn about Childhood Pancreatitis.