Dr. Andrea S. Tieng
- Gender: Female
- Experience: 18 years
- Graduation year: 2003
- Sole propriator: No
- NPI: 1356528566
Dr. Andrea S. Tieng M.D.
Gastroenterologist
She is located at 10801 Foothill Boulevard Suite 106 in Rancho Cucamonga, CA 91730. Can help patients with the following: Celiac Disease, Diverticulosis, Hepatitis C (HCV), Hot Flashes, Urethritis, Urinary Tract Infection (UTI). Her National Provider Identifier (NPI) number is 1356528566. Appointment can be made via the phone number (909) 255-7200. She is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. Andrea S. Tieng, 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. Andrea S. Tieng.
- 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. Andrea S. Tieng
Insurances Accepted by Dr. Andrea S. Tieng
- Medicare
Medicare Enrollment
Dr. Andrea S. Tieng is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Andrea Tieng Md Inc
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
| AbbVie | $403 |
| Allergan | $263 |
| Prometheus Laboratories | $234 |
Other
| Food and Beverage | $2327 |
Studies
Graduated in 2003Additional Specialities
- Internist
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Questions & Answers
Where can you meet with Dr. Andrea S. Tieng?
Dr. Andrea S. Tieng's office is located at 10801 Foothill Boulevard Suite 106 in Rancho Cucamonga, CA 91730.
What conditions does Dr. Andrea S. Tieng treat?
Dr. Andrea S. Tieng provides treatment for Celiac Disease, Diverticulosis, Hepatitis C (HCV), Hot Flashes, Urethritis, Urinary Tract Infection (UTI). For the full list see this list.
Has Dr. Andrea S. Tieng affiliation with hospitals?
Dr. Andrea S. Tieng is affiliated with SAN ANTONIO REGIONAL HOSPITAL.
Does Dr. Andrea S. Tieng accept patients with Medicare?
Yes, Dr. Andrea S. Tieng accepts patients with Medicare.
Does Dr. Andrea S. Tieng have affiliation with practices?
Dr. Andrea S. Tieng is affiliated with Allergy Asthma Consultants of the Inland Empire. For the full list of practices see this list.