Allegheny, Beaver and Butler Counties


Physicians and Professional Staff

Hassan Bakri, DMD, MDS

Dr. Bakri has been an integral part of St. Barnabas dental group since 2003. He received his doctorate and masters degrees from the University of Pittsburgh, and he provides specialized services such as customized dentures, implants and restorative dental procedures.

Larry Campoli

Larry Campoli, DPM

Dr. Campoli has been with St. Barnabas since 1990. He earned his Doctorate degree from Ohio College of Podiatric Medicine and a Bachelor’s degree from California University of Pennsylvania.

Coleen A. Carignan

Coleen A. Carignan, MD, Internal Medicine
Director of General Medicine

Dr. Carignan has been with St. Barnabas since 2003. She is Board Certified in Internal Medicine, earned her Medical degree from Loyola University and holds a Bachelor’s degree in Chemistry from Gonzaga University.

Thomas D. Dunning, PA-C
Physical Therapist

Thomas joined St. Barnabas in 2007. He received a master’s degree in physical therapy from Slippery Rock University and a bachelor’s degree in biology from the University of Pittsburgh.

Linda Eastman

Linda Eastman
Licensed Massage Therapist

Linda has been with St. Barnabas since 2006. She is a proud member of the American Massage Therapy Association (AMTA) and is certified in Geriatric Massage, Sports and Orthopedic Massage, and other specialties.

Vish V. Iyer

Vish V. Iyer, MD, PC, Family Physician
Director of Medicine, St. Barnabas Nursing Home

Dr. Iyer has been with St. Barnabas since 2008. He is a Board Certified Family Physician and earned his Medical and Master of Surgery degrees from the Madras Medical College in India.

Kellie Kelly

Kellie Kelly, RN, BSN, NHA
Executive Director, The Medical Center at St. Barnabas
and The Arbors at St. Barnabas, III

Kellie has been with St. Barnabas since 1993. She has contributed in various positions throughout our Clinical Services, holds a Bachelor’s degree in Nursing from Waynesburg University and is a Licensed Nursing Home Administrator.

James Kreshon Jr.

James Kreshon Jr., DO

Dr. Kreshon specializes in rehabilitation medicine. He is board certified and earned his doctor of osteopathic medicine degree from Philadelphia College of Osteopathic Medicine, completing his residency at the University of Pittsburgh.

Joseph Maroon

Joseph Maroon, MD, FACS

Dr. Maroon is a practicing board-certified neurosurgeon in the Pittsburgh area and team neurosurgeon for the Pittsburgh Steelers. He is regarded as a premier specialist in the surgical treatment of injuries and diseases of the brain and spine using specialized microscopic and minimally invasive techniques. Learn More

Davashis A. Mitra

Devashis A. Mitra, MD, DM, PhD

Dr. Mitra is Board Certified in Rheumatology and Internal Medicine. He earned his Medical degree and PhD in Rheumatology from Bath University in England.

Santosh M. Pandit

Santosh M. Pandit, MD, FACC

Dr. Pandit has been with St. Barnabas since 1994. He is Board Certified in Cardiology and Internal Medicine. He earned his Medical degree from Nagpur University in India.

Gary L. Reck

Gary L. Reck, OD

Dr. Reck has been with St. Barnabas since 1996. He earned his Doctor of Optometry degree from the University of Memphis and his Bachelor’s degree in Biology from Virginia Tech.


David Sokluski, LAc

David is a licensed acupuncturist and received his masters degree in acupuncture and Chinese herbal medicine from New England School of Acupuncture. He concentrates on treating the whole person and stresses the importance of listening to his clients.

Jason Strcula

Jason Strcula, DMD

Dr. Strcula is a 1995 graduate of the University of Pittsburgh, School of Dental Medicine. He later joined the University of Pittsburgh as an Associate Professor in the Restorative Dentistry Department. He has been treating patients in private practice for the past 10 years and is a member of the Pittsburgh East Suburban Dental Study Club.

Gwenn Whiteford

Gwenn Whiteford, MS, CCC/SLP
Rehabilitative Services Director

Gwenn has been with St. Barnabas since 1999. She earned her Master’s degree in Speech Language Pathology from California University of Pennsylvania and a Bachelor’s degree in Communication Sciences and Disorders from the University of Pittsburgh.

Evelyn Wiest-Kertz

Evelyn Wiest-Kertz MS, CCC-A

Evelyn has been with St. Barnabas since 2002. She is Board Certified in Audiology, earned a Master’s degree in Audiology and a Bachelor’s degree in Education Speech and Hearing.

William ZillwegerWilliam Zillweger, MD
Internal Medicine

Dr. Zillweger is board certified by the American Board of Internal Medicine. His clinical focus is on gerontology, hospice, advanced diagnostics, hypertensive diseases and minor surgical procedures. He earned his medical degree from American University of the Caribbean.

Debra Casselberry
Dental Office Manager

Kristi Donahue
Certified Medical Assistant

Gwen Franz
Certified Medical Assistant, Clinical Coordinator

Michele Snyder
Office Manager


Call (724) 443-7231 or email
St. Barnabas Medical Center

St. Barnabas Medical Center
5830 Meridian Road
Gibsonia, PA 15044

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