Platinum Digestive Health

9481 Pittsburgh Ave #200

IDEAL Gastro Associates treats the digestive health needs for patients in communities in San Bernardino County, California with offices in Upland and Rancho Cucamonga. Our practice delivers the highest quality, evidence-based care to our patients with liver and gastrointestinal needs and specializes in gastroenterology, hepatology, pancreatic diseases. Our team of physicians and advance practice providers works in a unified manner to deliver exceptional, personalized care.

Premier Gastroenterology Institute (PGI) is the leader in providing high quality Gastroenterology care. In addition we specialize in Hepatobiliary Disease, Digestive Disease, Pancreatic Disease, Inflammatory Bowel Disease and colon cancer screening. All of our providers are board certified and provide excellent patient experience. The single most important function of Premier gastroenterology Institute is quality. We accept the majority of insurance and ensure that patients are seen in a timely fashion.

Dr. Andrea Tieng is a New York City-trained gastroenterologist with over 15 years of experience in identifying and treating diseases of the digestive system. As one of the only female gastroenterologists practicing in Upland, Rancho Cucamonga, Redlands and San Bernardino, Dr. Tieng specializes in providing sensitive and compassionate treatment to women, and delivers personalized care to all patients 18 years and older. Dr. Tieng practices preventative care, helping detect and diagnose cancer and other diseases by performing the following procedures: Colonoscopy, upper endoscopy, esophageal dilation, and flexible sigmoidoscopy. Other treatments include: Irritable bowel syndrome (IBS), liver disease (hepatitis), and reflux.

9481 Pittsburgh Ave #200

At Westside Pain Specialists, located in Beverly Hills and Rancho Cucamonga, California, Dr. James Nassiri uses his rich background in treating patients with a wide variety of acute chronic pain conditions. Patients from throughout the Los Angeles area benefit from his expertise in treating arthritis, back, neck, knee, and shoulder pain, and sciatica with platelet rich plasma injections and other innovative pain management techniques. Dr. Nassiri’s educational path began in his hometown at the University of Southern California, where he graduated with Honors, earning a degree in Exercise Science.

11276 5th St

11276 5th St