Ziba Ranjbaran

Dr. Ranjbaran is a board-licensed Physical Medicine and Rehabilitation physician based in Mission Viejo, California. Originally an accomplished physician, researcher, and professor in Iran, she obtained her U.S. medical license in 2009 and further honed her expertise at Rush University Medical Center. She specializes in diagnosing and treating a wide range of musculoskeletal disorders including back and neck pain, nerve-related conditions, joint pain from osteoarthritis, tendonitis, bursitis, strains, sprains, and sports injuries.

Her approach emphasizes precise diagnosis to uncover the root causes of pain and dysfunction. Dr. Ranjbaran develops personalized, comprehensive non-surgical treatment plans aimed at restoring function and improving quality of life. These plans can be used independently or integrated with multidisciplinary rehabilitation teams to optimize patient recovery. Her mission is to help patients maintain active, healthy lives regardless of age or severity of their conditions.

Under her leadership, the MemorialCare Medical Group’s Electrodiagnostic Medicine Laboratory earned Exemplary Status Accreditation—the highest recognition—from the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM), reflecting her commitment to excellence and quality care.

• Comprehensive rehabilitation services tailored to individual patient needs
• Management of chronic and acute musculoskeletal disorders
• Patient education to promote active participation in recovery
• Development of personalized, non-surgical treatment plans

• Back and neck pain
• Nerve-related disorders and neuropathies
• Whole body pain syndromes
• Joint pain due to osteoarthritis
• Tendonitis and bursitis
• Muscle strains and sprains
• Sports injuries and rehabilitation

Driven by a passion for improving mobility and quality of life, Dr. Ranjbaran views every patient case as an opportunity to restore balance and function. Her treatment philosophy blends scientific precision with compassion, ensuring that each plan is tailored to the individual’s needs and lifestyle. Outside her clinical work, she enjoys running, hiking, and spending quality time with her family, embodying an active lifestyle herself.

Patients should note that while Dr. Ranjbaran is a rehabilitation specialist, she collaborates closely with referring primary care physicians and specialists to deliver expert rehabilitative care tailored to each patient’s unique situation.

• Medical Degree, Shiraz University of Medical Sciences, Iran
• Internship, Shiraz University of Medical Sciences
• Residency in Physical Medicine and Rehabilitation, Rush University Medical Center, Chicago, IL
• U.S. Medical License obtained in 2009
• Researcher in Physical Medicine & Rehabilitation, Rush University Medical Center
• Former physician, researcher, and professor in Iran
• Director, Electrodiagnostic Medicine Laboratory, MemorialCare Medical Group
• Exemplary Status Accreditation, American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM)

• Practices in Mission Viejo, California
• Affiliated with MemorialCare Medical Group
• Member, American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM)
• Collaborates with multidisciplinary rehabilitation teams to optimize outcomes