Dr. John O. Clarke
- Gender: Male
- Experience: 22 years
- Graduated from: University Of Missouri, Columbia School Of Medicine
- Graduation year: 1999
- Sole propriator: No
- NPI: 1467539643
Dr. John O. Clarke III M.D.
Gastroenterologist
He is located at 300 Pasteur Drive in Palo Alto, CA 94304. Can help patients with the following: Abdominal Pain, Gastritis, Headache, Hepatitis B (HBV), Obesity, Pancreas Divisum. His National Provider Identifier (NPI) number is 1467539643. Appointment can be made via the phone number (650) 723-4000. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. John O'Brien Clarke, 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. John O. Clarke.
- 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. John O. Clarke
Medicare Enrollment
Dr. John O. Clarke is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Stanford Health Care
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.
Payments received
Drug payment
| Teva Pharmaceuticals | $4247 |
| Covidien | $724 |
| C2 Therapeutics | $671 |
Other
| Consulting | $4500 |
| Food and Beverage | $1428 |
| Travel and Lodging | $729 |
Studies
UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated in 1999Additional Specialities
- Hospitalist
- Internist
Looking for more Gastroenterologists?
Out of the 23 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Female
- Address: 725 Welch Road Palo Alto, 94304, CA
- Gender: Male
- Address: Suite 210 750 Welch Road Palo Alto, 94304, CA
- Gender: Female
- Address: 3801 Miranda Avenue Palo Alto, 94304, CA
- Gender: Male
- Address: 300 Pasteur Drive Stanford, 94305, CA
- Gender: Female
- Address: 3801 Miranda Avenue Palo Alto, 94304, CA
- Gender: Female
- Address: Suite 202 900 Welch Road Palo Alto, 94304, CA
- Gender: Male
- Address: 300 Pasteur Drive Stanford, 94305, CA
- Gender: Male
- Address: 725 Welch Road Palo Alto, 94304, CA
- Gender: Female
- Address: 725 Welch Road Palo Alto, 94304, CA
- Gender: Male
- Address: Room 300 Pasteur Drive Palo Alto, 94304, CA
Questions & Answers
Has Dr. John O'Brien Clarke affiliation with hospitals?
Dr. John O'Brien Clarke is affiliated with STANFORD HEALTH CARE. For the full list of hospitals see this list.
What conditions does Dr. John O'Brien Clarke treat?
Dr. John O'Brien Clarke provides treatment for Abdominal Pain, Gastritis, Headache, Hepatitis B (HBV), Obesity, Pancreas Divisum. For the full list see this list.
Where can you meet with Dr. John O'Brien Clarke?
Dr. John O'Brien Clarke's office is located at 300 Pasteur Drive in Palo Alto, CA 94304.
Does Dr. John O'Brien Clarke have affiliation with practices?
Dr. John O'Brien Clarke is affiliated with Johns Hopkins Medical.