Our Physicians Louis Certo, M.D., F.A.C.S. Medical Director of The Circulatory Centers A graduate of St. Vincent College in Latrobe, Dr. Certo earned his medical degree from the University of Rome in Italy. After completing a five-year residency in General Surgery, he joined the St. Francis Medical Center staff in 1988 and UPMC St. Margaret Hospital staff in 1990. He also is on the staff at UPMC Passavant Cranberry, Allegheny General Hospital and Surgery Centers in Erie, Austintown and Cleveland, Ohio. Dr. Certo is Board Certified and Recertified in General Surgery. For the past ten years he has devoted most of his practice to venous surgery and has been associated with The Circulatory Centers since 1997. Dr. Certo is a current member of the American College of Phlebology. Robert A. Musson, M.D. Associate Medical Director/Staff Physician Dr. Musson was born and raised in Akron, Ohio. After receiving a Bachelor of Science Degree in Biology from the University of Akron in 1985, he attended The Ohio State University College of Medicine in Columbus, Ohio, where he received his M.D. in 1989. After a three year residency in Family Medicine at Akron City Hospital, he became Board Certified in that field in 1992. He joined The Circulatory Centers in 1992, and it was here that he received additional training in the field of Phlebology, or vein care medicine. Dr. Musson is an Active Physician Member of The American College of Phlebology, the principal American professional society in Phlebology. Dr. Musson is also an accomplished author and has written an informative book on the subject of varicose veins titled, "Varicose Veins and Spider Veins: Myths and Realities." Thomas A. Doyle, M.D. Staff Physician Dr. Doyle graduated from Princeton University in 1985 with a degree in Geology then earned his medical degree from Columbia University College of Physicians and Surgeons in New York City in 1989. He completed his residency in Emergency Medicine at Georgetown University in Washington, DC in 1993. Board Certified in Emergency Medicine, Dr. Doyle is on staff at Sewickley Valley Hospital and has practiced in that emergency department since 1993. He joined the staff of The Circulatory Centers in 2005. Peter T. Go, M.D. Staff Physician Dr. Go completed his B.S. in Pre-Med at the University of St. Thomas in Manila, Philippines in 1969 - where he also earned his Degree as an M.D. He completed his Surgical Residency at McKeesport Hospital and has operated a private practice in General Surgery in Somerset, PA for over nineteen years. Dr. Go also held the position as Chief of Surgery for Somerset Hospital and Meyerdale Medical Center for six years. Dr. Go is a Fellow of the International College of Surgeons as well as the Board of Governors of The American Hernia Society, the founding member of the Society for Laparoendoscopic Surgeons, as well as an active member of the Wound Healing Society of America. Paul Shields, D.O. Staff Physician Dr. Paul Shields completed his undergraduate studies at Gannon University in Erie, PA. He then went on to earn his Doctor of Osteopathic Medicine (DO) degree from the Philadelphia College of Osteopathic Medicine in 1999. Dr. Shields subsequently completed a three year Family Medicine residency and is board certified by the American Osteopathic Board of Family Physicians (AOBFP). Dr. Shields practices medicine full time in the Erie area and serves as the medical director of the Pennsylvania Soldiers’ and Sailors’ Home. In addition, Dr. Shields holds staff appointments as an attending physician at Hamot Medical Center, Saint Vincent Health Center and HealthSouth Rehabilitation Hospital in Erie. Dr. Shields has received additional training in the field of phlebology and Endovenous Laser Treatment (EVLT) procedures and performs EVLTs with The Circulatory Centers of Pennsylvania. Dr. Shields joined The Circulatory Centers in 2006 as a staff physician, practicing primarily in the Erie office. Brenda Williams, M.D. Staff Physician Dr. Williams, was born and raised in Ohio. She completed her B.S. in Animal Science at the University of Minnesota before returning to attend the Ohio State University College of Medicine in Columbus. After graduating in 1984 Dr. Williams moved to Pittsburgh to complete a residency in Family Practice at St. Margaret Memorial Hospital. Following a two year baptism in the emergency rooms of Forbes Regional and Forbes Metropolitan Hospitals, she happily joined The Circulatory Centers staff in 1989. After a brief hiatus for family-time in 2000/2001 we were pleased to welcome her back on staff. Dr. Williams is Board Certified in Family Practice. Rachel Budd, M.S.N., C.N.P. Nurse Practitioner Rachel was born and raised in Wayne county Ohio. She received her Bachelors of Science in nursing from Eastern Michigan University in 2001 and Masters of Science in nursing from Malone college in 2006. She is certified as a family nurse practitioner through the American Academy of Nurse Practitioners. Rachel is also a provider of Advanced Cardiac life support, Advanced Pediatric life support and CPR through the American Heart Association. She has worked in various areas of nursing including perioperative and medical-surgical. She joined the Circulatory Center in early 2007 where she received additional training in vein treatment and care. Kathryn M. Claridge, M.S.N., F.N.P., C.R.N.P. Nurse Practitioner Kathy received her Bachelor of Science degree in Nursing from Edinboro University and her Master of Science degree in Nursing from Gannon University in the Family Nurse Practitioner program. With over 23 years of extensive clinical experience that includes Family Practice, Urology, Internal Medicine and Laser, Kathy joined The Circulatory Centers in 2004 where she has completed additional and intensive training in vein treatment and care. Kathy is an Active Member of The American College of Phlebology, the principal American professional society in Phlebology. She was the Clinical Director for Laser Technology Associates, Inc. where she was responsible for physician training and instruction of various medically necessary and cosmetic laser procedures. Kathy is a member of the Northwest Pennsylvania Chapter of Nurse Practitioners and holds professional certifications in Advance Cardiac Life Saving (AHA), CLIA Level 2 Laboratory and Yag and IPL Laser. Sharon L. Montgomery, PA-C Physician Assistant Sharon is a graduate of Alderson - Broaddus College in Philippi, West Virginia. She began with The Circulatory Centers in 1986. Sharon was born and raised in the Pittsburgh area. After receiving a Bachelor of Science Degree in Medical Science and becoming nationally certified as a Physician Assistant, she began training with Dr. Katz (founder of The Circulatory Centers) in 1986. She now sees patients in the office and assists in surgery. Janette Vodhanel, M.S.N., C.N.P. Nurse Practitioner Janette was born and raised in Youngstown, Ohio. She received her Bachelor of Science degree in Nursing from Youngstown State University and her Master of Science degree in Nursing from Kent State University in the Adult Nurse Practitioner program. She is Board Certified in her specialty through the American Nurses Credentialing Center. Janette is a member of the Ohio Nurses Association, American Academy of Nurse Practitioners, Ohio Association of Advanced Practice Nurses, Sigma Theta Tau International Honor Society of Nursing, and The American College of Phlebology. She is also a provider of Advanced Cardiac Life Support and Pediatric Advanced Life Support through the American Heart Association. Janette joined The Circulatory Centers in the spring of 2004 where she received additional training in vein treatment and vein care.
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