Tieng, Andrea S MD is a highly experienced gastroenterologist located in Rancho Cucamonga, CA. With over 15 years of expertise in diagnosing and treating digestive system diseases, Dr. Tieng offers personalized and compassionate care to all patients, with a special focus on women. She performs a range of specialized procedures and is known for her thoroughness, attentiveness, and impeccable follow-up.
Dr. Tieng's office is conveniently accessible to residents of Upland, Rancho Cucamonga, Redlands, and San Bernardino. She accepts most insurance plans and schedules appointments and procedures within a two-week notice. With her extensive training and expertise, Dr. Tieng is dedicated to delivering safe, confidential, and effective care to her patients.
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