Melissa is a recent graduate of Bryant and Stratton College where she earned her Associates Degree in Medical Coding and Reimbursement.  She has worked her entire career in the healthcare field and brings to our practice her outstanding customer service skills along with extensive knowledge in medicare and health insurance. Melissa loves to empower the staff and has a passion for training others. 

She loves to go swimming, travel, sing, and watch baseball. She especially  loves the Yankees! Her favorite part of her job is watching patients leave the office with a smile on their face. 



Dr. Jason Cichocki joined Lancaster Depew Chiropractic (LDC) in December 1999.  In 2008, he purchased LDC from his brother, Dr. Kevin Cichocki, who began the practice in 1986.  If you ask Dr. Jason, he will tell you that it was his brother's treatments in the early 90s that sparked his interest in chiropractic.  He witnessed first hand the benefits of chiropractic care via the hand of his eldest brother.

After graduating from St. Francis High School in 1992, Dr. Jason earned a Bachelor of Science in Biology from St. John Fisher College in 1996.  He then continued his studies at New York Chiropractic College where he earned his Doctorate of Chiropractic in 1999. 

Born and raised in Buffalo, Dr. Jason has deep roots in the local community.  He serves on the Alumni Board at St. Francis High School and assists with the planning of several alumni events.  Faith is a vital part of Dr. Jason's life.  He is an active member at  Centerpointe Community Church.

Keeping current with his profession, Dr. Jason attends continuing education seminars on a regular basis.  He enjoys treating sports related injuries and treats many local athletes.  Dr. Jason is a past Clinical Director of Chiropractic Services at Erie County Medical Center and remains a credentialed doctor at the hospital.  Outside of the community, he is also involved in his profession at both state and national levels.  He was the past treasurer and member of the New York State Chiropractic Association as well as past member of the American Chiropractic Association.

Dr. Jason has a passion for treating his patients as is evidenced by his listing as one of the areas top chiropractors in the Business First Health Care Directory.  When he is not giving his best to help those who trust his care, he is busy spending time with his family.  He would tell you that his greatest blessings are his wife Dianna and his three children, Rachel, Maranda and Connor Cichocki. 

Dr. Lisa A. DeMarco has been practicing in the Buffalo area since 1996, a dedicated health professional with years of progressive chiropractic experience in private practice and area hospitals.  She earned a BS degree from SUNY Buffalo in Exercise Science and her Doctorate from New York Chiropractic College.

After establishing her private practice in her hometown, she began to pursue her passion for teaching.  Dr. DeMarco served as a faculty member of New York Institute of Massage and as an Adjunct Professor at New York Chiropractic College's Depew Health Center.  Presently, she is an Assistant Professor within the Chiropractic Department of D'Youville College.  She served as an active board member that integrated chiropractic into local hospitals and was the associate clinic director of the first free standing chiropractic department within a New York State hospital.  Currently, granted allied health privileges at Erie County Medical Center.  She is a co-founder for WeCanRow-Buffalo, NY which is a wellness and rehabilitation rowing program for female cancer survivors through the University at Buffalo.  Dr. DeMarco has held multiple positions within New York State Chiropractic Association and is a Certified Practitioner of the Kinesio Taping Method and Cox Decompressive Adjustment and Manipulation Technic.   


Lisa DeMarco, D.C.


Peter Guzinski, B.S., D.C


Jason Cichocki, B.S., D.C.


Melissa Davignon, CCA, CCS-P

Office Manager

​Dr. Sarah L Soper graduated from D’Youville College, earning a BS in Biology with a minor in Pharmacology and her Doctorate of Chiropractic. Aside from traditional, diversified Chiropractic adjusting, Dr. Soper has experience with instrument adjusting, taping, soft tissue mobilization, and neuromuscular rehabilitation. She received post-graduate certification in the Webster technique, which is a specific Chiropractic analysis and adjustment protocol performed to reduce nervous system stress, balance pelvic muscles and ligaments, and optimize the patient’s pelvic function throughout pregnancy.
Dr. Soper is a member of the American Chiropractic Association and sits on their Council on Women’s Health, the New York State Chiropractic Association and is the District 17 secretary, as well as the International Chiropractic Pediatric Association. She is passionate about advocating for Chiropractic care, and has spent time lobbying in Albany and Washington, DC on behalf of her patients and for the forward progression of the Chiropractic profession.
Dr. Soper was born and raised in Western New York and loves being an active member of the community. She is an avid gardener and concert goer, but most importantly enjoys spending time with her husband Josh and pets, Edith and Harrison.

"I am beyond excited to join the amazing team at Lancaster Depew Chiropractic and for the opportunity to provide a wide range of evidence based Chiropractic care to all members of our community!” 

Sarah Soper, D.C.

Dr. Peter Guzinski is a practicing chiropractor and partner of Lancaster Depew Chiropractic.  Since its inception in April 2012, he has been a board member of Palladian Health Independent Physician Association.  Dr. Guzinski has held staff privileges at the Erie County Medical Center since 2001.  He is a member of the Quality Management and improvement at Palladian Health.  In addition, Dr. Guzinski has been a member of the New York State Chiropractic Association and has held positions of house chairman and treasurer.  During his studies at New York Chiropractic College he was a member of the Phi Chi Omega Chiropractic Honor Society and graduated Magna Cum Laude.  Dr. Guzinski also holds a Bachelor of Science degree in Business Administration from John Carroll University.