Andrew Messiha MD

Dr. Andrew H. Messiha is a double board-certified physician in Anesthesiology and Pain Medicine with advanced expertise in multimodal and interventional pain management. He completed his medical degree at Penn State College of Medicine, followed by a General Surgery Internship at Harbor-UCLA Medical Center, Anesthesiology Residency at Case Western Reserve University/MetroHealth Medical Center in Cleveland, Ohio, and a Pain Medicine Fellowship at the University of Pittsburgh Medical Center. With a strong clinical focus on treating the whole patient, Dr. Messiha integrates interventional procedures, medical therapy, physical rehabilitation, and psychological approaches to manage acute and chronic pain conditions. He is actively involved in clinical leadership and hospital committees across Southern California and is committed to delivering evidence-based, patient-centered care that improves long-term quality of life. Key Professional Highlights: • Double Board-Certified in Anesthesiology and Pain Medicine (American Board of Anesthesiology) • Medical Doctor – Penn State College of Medicine • General Surgery Internship – Harbor-UCLA Medical Center • Anesthesiology Residency – Case Western Reserve University / MetroHealth Medical Center • Pain Medicine Fellowship – University of Pittsburgh Medical Center • Expertise in interventional and multimodal pain management • Focus on chronic pain, back pain, neck pain, and nerve-related conditions • Member of American Society of Anesthesiologists • Member of California Society of Anesthesiologists • Member of North American Neuromodulation Society • Member of American Society of Regional Anesthesia and Pain Medicine • Active participation in Memorial Care EPIC Ambulatory Steering Committee • Member of Memorial Care Orange Coast Medical Center Pain Stewardship Committee • Member of Hoag Hospital Opioid Committee • Dedicated to patient-centered care and long-term pain relief outcomes