Meet Our Specialists | PIH Health

Meet Our Specialists

Bariatric Surgery

Obesity is a common, serious, and costly chronic disease. Bariatric surgery has been shown to be the most effective treatment for morbid obesity resulting in significant weight loss and helps to prevent, improve or resolve more  than 40 obesity related diseases or conditions that  include:

  • Type 2 Diabetes
  • Heart Disease
  • Obstructive sleep apnea
  • Certain cancers

The PIH Health Bariatric Surgery Program, led by Dr. Justin Braverman, provides a comprehensive team approach to providing individuals with the support needed to successfully achieve and maintain successful outcomes.  We are pleased to offer a virtual introduction to Dr. Justin Braverman so you can learn more about our program and how it can help the patients you treat who may be suffering from this serious health condition.

Justin Braverman MD

Gastroenterology and Digestive Health Services

Endoscopic Ultrasound (EUS) helps to diagnose a number of digestive disorders. EUS provides detailed images of an individual’s internal structures. It may be used to:

  • Detect small tumors in the pancreas
  • Stage gastrointestinal cancers (determine how severe the cancer is)
  • Detect stones in the biliary ducts

For patients in need of this procedure, the Digestive Health Services at PIH Health Whittier Hospital is able to provide this support.

We are pleased to provide a virtual introduction to Dr. Ashwin Ashok who will discuss his subspecialty training and expertise in EUS. Trained in endoscopic treatments, Dr. Ashwin Ashok manages cirrhosis, chronic liver disease, hepatitis, inflammatory bowel disease, irritable bowel syndrome, celiac disease, GERD, and other general GI issues.

Ashwin Ashok MD

Heart and Vascular Center

One of the largest structural heart programs on the West Coast, the Heart and Vascular Center at PIH Health offers  transcatheter aortic valve replacement, left atrial appendage closure, mitral valve repair and  patent foramen ovale (PFO) atrial septal defect closure.

TMVR with MitraClip® is a minimally invasive procedure that may be an option for patients with MR who are too sick for surgery.  The cardiologist places a thin tube (catheter) through the skin into a large vein in the leg to reach the heart.  A clip is then implanted onto the center of the mitral valve (the valve between the left atrium and left ventricle of the heart).

For patients not ideally suited for long term anticoagulation, the Watchman FLX Left Atrial Appendage Closure (LAAC) Device is an implant-based alternative to warfarin. The Watchman FLX device closes off an area of the heart called the left atrial appendage (LAA) to keep harmful blood clots that can form in the LAA from entering the blood stream and potentially causing a stroke. By closing off the LAA, the risk of stroke may be reduced and, over time, patients may be able to stop taking their blood thinner, such as warfarin.

Dr. Steven Burstein provides an overview on treatment options for patients with cardiovascular disorders.

Steven Burstein MD


Movement disorders refers to a group of nervous system (neurological) conditions that cause abnormal increased movements, which may be voluntary or involuntary. Movement disorders can also cause reduced or slow movement.

We are pleased to offer a virtual introduction to Dr. Keith Cochran who is board certified in neurology and subspecializes in movement disorders.

Keith Cochran MD

Orthopedic Surgery

Sports medicine is a branch of medicine that deals with physical fitness and the treatment and prevention of injuries related to sports and exercise. The goal of sports medicine is to help people engage in exercise safely and effectively in order to achieve their training goals.

Our sports medicine specialists treat a wide range of physical conditions, including acute traumas such as fractures, sprains, strains, and dislocations. They also treat chronic overuse injuries, including tendonitis, degenerative diseases, and overtraining syndrome.

We are pleased to provide a virtual introduction to Dr. Andrew Hsaio, who in addition to treating patients with sports injuries, also specializes in  arthroscopy and reconstructive procedures of the elbow, shoulder and knee.

Andrew Hsiao MD

Dr. David A. Lewis, provides routine to complex care for patients with orthopedic problems.  He provides both conservative and surgical treatment options for general orthopedic disorders, sports injuries and joint pain. 

We are pleased to offer a virtual introduction to Dr. Lewis so that you can learn more about his expertise and how he can assist your patients who may be suffering from orthopedic problems.

David Lewis MD

Total Joint Replacement

Several conditions can cause joint pain and disability and lead patients to consider joint replacement surgery. In many cases, joint pain is caused by damage to the cartilage that lines the ends of the bones—either from arthritis, a fracture, or another condition.  If nonsurgical treatments like medications, physical therapy, and changes to everyday activities does not relieve a patient’s pain and disability, total joint replacement may be necessary.

PIH Health Orthopedic surgeon, Dr. Andrew Luu, specializes in anterior hip replacement which allows the surgeon to perform the surgery with a more minimally invasive approach. 

Advantages include:

  • Less muscle trauma
  • Less postoperative pain
  • Earlier and easier recovery
  • Less limping
  • Shorter hospital stay
  • Decreased chance of hip dislocations

We are pleased to offer a virtual introduction to Dr. Andrew Luu so that you can hear more about his expertise and how he can assist your patients who may be suffering from hip and knee pain.

Andrew Luu MD