Our Doctors
Meet Dr. Pete Antanavica, DC

Pete Antanavica, DC, is the experienced and dedicated chiropractor leading Leicester Spine and Wellness in Leicester, Massachusetts. With over 20 years of chiropractic practice, Dr. Pete balances effective treatments for immediate pain relief with long-term strategies to promote overall wellness and improved quality of life. A lifelong Leicester resident, he graduated from Leicester High School in 1990 and earned his undergraduate degree from Assumption College in Worcester in 1997. He completed his Doctor of Chiropractic degree at New York Chiropractic in 2001.
Dr. Pete’s passion for healthcare was inspired by his mother, who found relief from severe back and leg pain through chiropractic care at a time when surgery was often the only recommendation. Witnessing her transformation and improved health motivated him to pursue a career in chiropractic medicine.
Patients can expect a professional and thorough consultation and spinal exam, during which Dr. Pete develops a personalized care plan. He also reviews health insurance coverage and chiropractic benefits. Long-term plans are tailored to maintain optimal nerve flow and overall wellness. Dr. Pete is committed to helping every patient achieve the highest level of health possible.
Meet Erik Wisniewski, DNP-C

Erik Wisniewski, DNP-C, is an experienced Family Nurse Practitioner with eight years of dedicated service in healthcare. His professional journey began in 2010 when he earned an Associate of Science in Nursing from Daytona State College. He gained extensive experience working in acute care hospital settings, including Medical Surgical, Orthopedics, Progressive Care, and Intensive Care units.
Committed to continuous learning, Erik earned his Bachelor of Science in Nursing from Chamberlain University while working in Intensive Care and obtained certifications in Critical Care Nursing and Cardiovascular Medicine. In 2018, he completed a Master of Science in Nursing from Chamberlain University, becoming a skilled primary care provider in Massachusetts.
Erik has worked in diverse hospital environments, from community facilities to trauma centers across Florida, Massachusetts, and California, including a significant role as a trauma Nurse Practitioner at Desert Regional Medical Center in Palm Springs, California. He conducts thorough patient assessments and delivers personalized care, focusing on each patient’s unique needs.
Currently pursuing a Doctoral degree at Chamberlain University with an anticipated graduation in 2025, Erik also completed advanced injection training with New Life Medical Sciences in July 2024. He provides innovative therapies, including therapeutic and aesthetic injections and intravenous treatments, ensuring individualized and comprehensive care for his patients while advancing recovery and overall well-being.