Bosley Hair Restoration & Transplant

It appears there may be some confusion regarding Dr. Gerald Scott Welker. While the Bosley website lists a Dr. Gerald Scott Welker associated with their San Francisco clinic, public records indicate that this Dr. Welker passed away in March 2023. Information regarding his specific professional experience, educational background, memberships, awards, or accomplishments prior to his passing has not been readily found in the provided search results. He graduated from the Uniformed Services University of the Health Sciences in 1994 and had over 25 years of experience, specializing in General Surgery and Other Specialty.

**Mark Oyama, MD** is a distinguished professional with extensive experience in his field. He earned his Doctor of Veterinary Medicine (DVM) degree from the University of Illinois and completed his specialty training at the University of California at Davis. Dr. Oyama holds a Master of Science in Clinical Epidemiology (MSCE) from the University of Pennsylvania, where he also serves as a Professor of Cardiology and the Charlotte Newton Sheppard Endowed Chair of Medicine. He is a Diplomate of the American College of Veterinary Internal Medicine (ACVIM) and has previously served as President of the ACVIM, Specialty of Cardiology. Dr. Oyama's expertise includes mitral valve disease, heart failure therapies, clinical epidemiology, and cardiac biomarkers. He is also an Associate Scholar at Penn Medicine's Center for Clinical Epidemiology and Biostatistics and has been involved with the NIH One Health Alliance-Clinical Translational Science committee.

Dr. James Aachen-Winans is a highly experienced hair restoration surgeon who joined Bosley in 2005. He has a distinguished career spanning over 40 years, with his practice dedicated solely to hair restoration and transplantation since 2005. Dr. Aachen-Winans earned his M.D. from the University of Southern California Keck School of Medicine and completed his residency in Otolaryngology, Head and Neck Surgery, and Facial Plastic Surgery at White Memorial Medical Center. He is board-certified in Ear, Nose, and Throat/Head and Neck Surgery and Facial Plastic Surgery. His professional affiliations include being a Fellow of the American College of Surgeons and a Fellow of the American Academy of Otolaryngology and Head and Neck Surgery. Dr. Aachen-Winans is also a member of the International Society of Hair Restoration Surgery (ISHRS), the American Academy of Facial Plastic & Reconstructive Surgery, and the California Academy of Cosmetic Surgery. He has performed thousands of successful hair transplant procedures and is consistently recognized as one of Bosley's top-rated physicians, receiving excellent patient reviews for his professionalism and natural results.

Dr. Agustin A. Burgos is a board-certified surgeon with extensive experience in both general and hair restoration surgery. He earned his Bachelor of Science in Biology and his Medical Degree from the University of Puerto Rico, and then completed his surgical residency at Tulane Medical School. Prior to joining Bosley, Dr. Burgos practiced general and laparoscopic surgery for 16 years in South Florida. His practice at Bosley allows him to blend his surgical skills with his passion for art and patient care. Dr. Burgos is licensed to practice medicine in New York, California, and Florida and is bilingual in English and Spanish.

Dr. Richard E. Lorenz is a board-certified plastic surgeon with over 40 years of medical experience. He received his Bachelor of Science in Biology from the University of Washington and his M.D. from the University of Minnesota. Dr. Lorenz completed his general surgery residency at Sinai Hospital of Detroit and his plastic surgery residency at Phoenix Plastic Surgery Residency, and he has been practicing hair restoration exclusively since 2001. Prior to focusing on hair restoration, he had a private practice in plastic and reconstructive surgery for seventeen years and served as a Clinical Instructor in Plastic Surgery at the Mayo Graduate School of Medicine in Phoenix, Arizona. He is a Diplomate of the American Board of Plastic Surgery and the National Board of Medical Examiners.

Dr. Carlos C. Tan is a highly experienced surgeon with over 40 years in the medical field before dedicating his practice to hair restoration at Bosley. He earned his Doctor of Medicine from the Far Eastern University Nicanor Reyes Medical Foundation, graduating in the top 20 of his class. Dr. Tan completed a fellowship in Cardiovascular and Thoracic Surgery at the Texas Heart Institute. His extensive surgical background includes private practice in General and Vascular Surgery, Advanced Laparoscopic Surgery, Bariatric Surgery, and endoscopic procedures from 1985 to 2011, followed by practice in Minor Outpatient Surgery and Regenerative Medicine until joining Bosley. He is a Fellow of the American College of Surgeons. Dr. Tan is also a member of the Philippine American Medical Association of Georgia, participating in medical missions.

Dr. Allan Parungao is a board-certified plastic surgeon with over 23 years of experience in cosmetic plastic surgery, specializing in hair restoration. He earned his Doctor of Medicine from Southern Illinois University School of Medicine and holds a Master of Science in Applied Physiology from Finch University of Health Sciences/The Chicago Medical School. Dr. Parungao is a Fellow of the American College of Surgeons and a member of the American Society of Plastic Surgeons and the International Society of Hair Restoration Surgery (ISHRS). Prior to focusing on hair restoration, his extensive surgical background included craniofacial surgery, head and neck reconstruction, and microvascular surgery. He served as Chief Surgeon & Assistant National Medical Director for Bosley in Chicago from 2011 to 2022.

Dr. Kurt W. Sprunger is a highly experienced surgeon with over 40 years in the medical field. He earned his undergraduate degree in Chemistry/Biology from Indiana University and his medical degree from Indiana University School of Medicine. Dr. Sprunger completed his residency in general surgery at the University of Iowa. He is board-certified by the American Board of Surgery and is a Fellow of the American College of Surgeons. Dr. Sprunger has extensive experience in various surgical procedures, including hair transplantation, and is dedicated to helping patients improve their confidence through hair restoration.

Dr. Frank Cohen is a highly experienced hair restoration physician with Bosley, where he is committed to both the art and science of hair restoration. He earned his Bachelor of Science degree with High Honors from the University of Florida, majoring in Biochemistry and Pharmacology, and was recognized as a member of the Phi Beta Kappa Honor Society. He continued his medical education at the University of Florida College of Medicine, where he was inducted into the Florida Blue Key Honor Society. Dr. Cohen completed his surgical internship and residency at Montefiore Medical Center, affiliated with the Albert Einstein College of Medicine, where he served as Chief Resident during his final year. His clinical research has been published in several surgical journals, and he is a Board-Certified Surgeon by the American Board of Surgery. Dr. Cohen also has experience on the faculty of the Jacobs School of Medicine in Buffalo, New York, where he contributed to developing a surgical program. He has a deep, lifelong interest in hair science and the aesthetic aspects of hair restoration, aiming to help patients regain their confidence.

Dr. Sharone M. Jacobs is a skilled surgeon specializing in hair restoration at Bosley in Philadelphia. She earned her medical degree from Louisiana State University School of Medicine and completed her general surgery residency at New York-Presbyterian Queens. Dr. Jacobs previously worked as a wound care surgeon with Vohra Wound Physicians and Montefiore Medical Center, where she also led the Hyperbaric Medicine clinic. She is an associate fellow of the American College of Surgeons and is noted for her meticulous and detail-oriented approach to patient care.

Dr. Steven S. Lee is a Fellow of the American College of Surgeons and dedicates his practice to hair restoration. He earned his biology degree Magna Cum Laude from the University of California, Los Angeles, and then received his medical degree from Tufts University School of Medicine, where he achieved clinical honors in surgery and medicine. Dr. Lee completed his residency in General Surgery at Cedars-Sinai Medical Center in Los Angeles. He has previously served as a general surgeon in various medical facilities, including Skagit Regional Clinics, Sunnyside Community Hospital, Banner Health Payson Arizona, and Kaiser Permanente.