Our Team


Facial Plastics

P. Daniel Knott, MD

Dr. P. Daniel Knott is director of Facial Plastic, Aesthetic and Reconstructive Surgery in Otolaryngology-Head and Neck Surgery at UCSF Medical Center. Knott, who joined UCSF in 2011 after 10 years at the Cleveland Clinic, has training and experience in facial aesthetics and microvascular surgery. His expertise includes treatment of facial paralysis, facial rejuvenation, reconstruction of facial cutaneous malignancies, minimally invasive facial soft tissue augmentation, rhinoplasty and free tissue transfer.

In his research, he is helping develop new methods for palatal and orbito-maxillary reconstruction, microvascular treatment of osteonecrosis and cartilage bioengineering. He has won several national awards for his research, which includes studies of head and neck tissue transplantation. Knott earned a medical degree at the School of Medicine at the University of California, San Diego and completed a five-year surgical residency at the Cleveland Clinic in otolaryngology-head and neck surgery. He also completed a fellowship in facial plastic and reconstructive surgery at UCLA Medical Center.

Rahul Seth, MD

Dr. Rahul Seth is a facial plastic and reconstructive surgeon who specializes in the treatment of facial aesthetics and rejuvenation of the aging face, rhinoplasty and nasal airway surgery, treatment of facial paralysis, reconstruction of facial cutaneous malignancies and free tissue transfer. His research interests include clinical outcomes of advanced techniques and therapeutic methods for the reconstruction of the head and neck. With a background in engineering, Seth designed and patented new technologies used in the diagnosis and treatment of head and neck diseases. He has won several national awards and laboratory grant funding for his research, and has published numerous medical articles in his field.

Seth earned a medical degree from the University of Rochester and completed a five-year surgical residency in Otolaryngology - Head and Neck Surgery from the Cleveland Clinic. Subsequently, he completed further subspecialty training in facial plastic and reconstructive surgery from the University of California, Los Angeles. He is an assistant professor in Otolaryngology - Head and Neck Surgery at UCSF.

Andrea Park, MD

Dr. Andrea Park is a fellowship trained facial plastic and reconstructive surgeon who loves helping her patients to look and feel their very best. She specializes in facial rejuvenation, rhinoplasty, and reconstruction of the face and neck to help restore both form and function after ablative surgery.

She is highly trained in microvascular free tissue transfer, as well as a variety of facial reanimation procedures. During her T32 NIH research fellowship she studied various nerve injury models and novel ways to prevent synkinesis. She has won several awards and grant funding for her research work, and has published extensively on the subject.

Dr. Park graduated with service and research distinctions from the University of Iowa Carver College of Medicine. She then completed her otolaryngology residency and a two-year T-32 NIH research fellowship at Washington University in St. Louis. She chose to complete additional subspecialty training in facial plastic and reconstructive surgery at UCLA in order to further refine her skills so that she could offer her patient’s the best possible aesthetic and functional results.



Robert Kersten, MD

Professor and division chief of Oculofacial Plastic Surgery. He completed his medical school, residency and fellowship training at the University of Iowa. He is board certified and a member of the ASOPRS. Dr. Kersten brings more than 30 years of experience to the center with his focus on precision, restorative surgery.



Reza Vagefi, MD

M. Reza Vagefi specializes in plastic and reconstructive surgery of the eyelids, tear drainage system, orbit and face. His areas of expertise and interests include: aesthetic facial rejuvenation, disorders of the eyelid and tear drainage system and orbital disease.

After earning a bachelor's degree in French from Johns Hopkins University, Vagefi completed medical school at Yale University. He completed an internship at Stanford University followed by an ophthalmology residency at UCSF. During his residency, he was awarded the Starr E. Shulman, MPA fellowship by the California Academy of Eye Physicians and Surgeons. He then spent two additional years training in oculofacial plastic, reconstructive or orbital surgery in Salt Lake City, Utah.

Vagefi is board certified and a member of the American Society of Ophthalmic Plastic and Reconstructive Surgery and the American Academy of Ophthalmology. He instructs fellows, residents and medical students at UCSF, San Francisco VA Medical Center and SFGH.


Jeffry Ralph, MD

Dr. Jeffrey W. Ralph is a neurologist who specializes in diseases of the nerve, muscle and neuromuscular transmission. He is an expert in peripheral neuropathy, with a particular interest in immune-mediated neuropathies. In 2004, he was appointed director of the Neuropathy Center at UCSF Medical Center, founded in part with funding from the Neuropathy Association. In addition to treating patients in the clinic, he is an electromyographer, performing specialized tests such as single-fiber electromyograms and multiple-channel recordings for dystonia analysis.

Ralph completed a neurology residency and fellowships in neuromuscular and clinical neurophysiology at the University of California, San Francisco. His research has addressed treatments for neuropathy caused by HIV and AIDS.

Jonathan Strober, MD

Dr. Jonathan Strober is director of clinical services for Child Neurology and director of the Muscular Dystrophy Clinic at UCSF Benioff Children's Hospital. The Muscular Dystrophy Clinic, sponsored by the Muscular Dystrophy Association, treats children with disorders of the muscle and nerve. Strober, a specialist in childhood neuromuscular disorders, is board certified in pediatrics, neurology and psychiatry and has special certification in child neurology. He also is trained to perform electromyography (EMG) to evaluate patients with suspected neuromuscular disorders.

Strober's research includes studies of new therapies, including research to determine the safety of a dietary supplement called creatine monohydrate for children with neuromuscular and mitochondrial disorders. He earned a medical degree at Temple University Medical School in Philadelphia and completed a residency at the Long Island Jewish Medical Center in pediatrics. He completed fellowships in child neurology at the University of Pennsylvania School of Medicine in Philadelphia and in neuromuscular disorders at Emory University School of Medicine in Atlanta, Ga.


Charles Limb, MD

Dr. Charles Limb is the chief of division of otology, neurotology and skull base surgery at UCSF. He is also the director of the UCSF Douglas Grant Cochlear Implant Center and holds a joint appointment in the department of neurological surgery. Limb's expertise covers the full scope of otology and neurotology, with a focus on the treatment of hearing loss and auditory disorders. He specializes in all surgeries of the temporal bone. His current areas of research focus on the study of the neural basis of musical creativity as well as the study of music perception in deaf individuals with cochlear implants.

Limb is the Francis A. Sooy professor of otolaryngology-head and neck surgery at UCSF. Previously, he was associate professor of otolaryngology-head and neck surgery and a faculty member at the Peabody Conservatory of Music and School of Education at Johns Hopkins University. He received his undergraduate degree from Harvard University and his medical degree from Yale University School of Medicine. He completed a residency and fellowship in otolaryngology-head and neck surgery at The Johns Hopkins Hospital, a postdoctoral research fellowship at the Center for Hearing Sciences at Johns Hopkins and a second postdoctoral fellowship at the National Institutes of Health.

Aaron Tward, MD

Dr. Aaron Tward is a surgeon who specializes in the diagnosis and treatment of ear and skull base disorders. His clinical interests include cochlear implantation, management of benign and malignant tumors of the skull base including acoustic neuroma (vestibular schwannoma), surgery for chronic otitis media, stapedectomy, superior semi-circular canal dehiscence repair and endoscopic surgery of the ear and skull base.

Tward's research interests include tumor biology, the genetics and genomics of head and neck disorders, and clinical outcomes of surgery on the ear and skull base.


Jeffrey Sharon, MD

Dr. Jeffrey Sharon is the director of the UCSF Balance and Falls Center. He specializes in cochlear implants, along with the treatment of dizziness, vertigo, hearing loss, ear infections, cholesteatoma, vestibular schwannoma, otosclerosis, superior canal dehiscence, and other conditions related to the ear.

After receiving his medical degree from Mount Sinai School of Medicine, Sharon completed his internship and residency at Barnes-Jewish Hospital in Saint Louis, followed by a fellowship in otology, neurotology and skull base surgery at the Johns Hopkins School of Medicine.

In addition to treating patients, Sharon has conducted and published research on several topics related to hearing and balance disorders. This includes patient safety in lateral skull base surgery, the use of MRI in cochlear implantation, and osteoradionecrosis of the skull base. He is especially interested in studying outcomes after treatment for vestibular disorders, and has published several studies looking at outcomes after surgery for superior canal dehiscence.

Sharon is a member of the American Academy of Otolaryngology-Head and Neck Surgery, the American Auditory Society and the American Neurotology Society. He is an assistant professor in the UCSF Division of Otology, Neurotology and Skull Base Surgery.

Steven Cheung, MD

Dr. Steven W. Cheung is an otologist, or ear specialist, and an ear and skull base surgeon at UCSF Medical Center. He specializes in diseases such as eardrum perforation, cholesteatoma, otosclerosis and acoustic neuroma. He also performs implantable hearing device surgery, including bone anchored, middle ear and cochlear, to treat various forms of hearing loss. His current research focuses on learning and reorganization of the brain in hearing loss and tinnitus so that innovative rehabilitative therapies may be developed.

Cheung graduated from Dartmouth College and earned his medical degree from the University of Pennsylvania School of Medicine. He completed a residency in otolaryngology-head and neck surgery, at UCSF Medical Center, where he also completed clinical and research fellowships in neurotology, the neurological study of the ear.

Physical Therapy

Erica Pitsch, PhD

Erica Pitsch earned her master's in physical therapy from the graduate program in Physical Therapy at UCSF/SFSU and her post-professional doctorate in Physical Therapy from the University of Southern California in 2010. She achieved her Neurologic Clinical specialist certification in 2012.



Heather Bhide, PT, DPT, NCS

Heather Bhide is a physical therapist who specializes in working with patients with a neurologic diagnosis, such as stroke, Parkinson's disease, vestibular dystonia, multiple sclerosis and spinal cord Injury.

Bhide earned a bachelor's degree in integrative biology from University of California, Berkeley, and her doctorate in physical therapy from the University of Southern California. She is a member of the American Physical Therapy Association (Neurology Section).