Clinical Team

Jacob Dominik, MD
Medical Director

Dr. Jacob Dominik completed his Bachelor of Science in cell biology and neuroscience in 2001 at McGill University in Montreal, Canada and his medical doctorate in 2005 at the Jagiellonian University in Krakow, Poland. He completed his residency in neurology in 2009 at the Mayo Clinic in Jacksonville, Florida and his fellowship in sleep medicine in 2010 at the Mayo Clinic in Rochester, Minnesota. Dr. Dominik is board-certified in both neurology and sleep medicine. He has been on staff at Sleep Insights since completion of his training.

Dr. Dominik treats patients for all sleep disorders, including but not limited to: sleep-disordered breathing (sleep apnea), insomnia, hypersomnias (narcolepsy), sleep-related movement disorders (RLS) and parasomnias (sleepwalking). He also provides interpretations for Sleep Insights' sleep studies and home sleep tests (HSTs). He see patients at the Penfield and Batavia locations.

Kenneth Halliwell, MD

Dr. Kenneth Halliwell completed his Bachelor of Science at New York's Niagara University in 1999, receiving his Medical Doctorate from the SUNY Buffalo School of Medicine in 2003. His residencies in neurology (2007) and sleep medicine (2008) were completed at SUNY Buffalo's School of Medicine and Biological Sciences.

Dr. Halliwell is a board-certified sleep specialist and neurologist, and established Niagara Neurology in 2010. Dr. Halliwell joined Sleep Insights in 2015 and provides sleep consultations, patient care, and sleep study interpretations. He treats patients for all sleep disorders, including but not limited to: sleep-disordered breathing (sleep apnea), insomnia, hypersomnias (narcolepsy), sleep-related movement disorders (RLS) and parasomnias (sleepwalking). Dr. Halliwell sees patients at the Geneseo location.

Kuntal Avashia, MD
Medical Director—Olean

Dr. Kuntal Avashia completed his Bachelor of Science from the University of California, Los Angeles in 2003 and received his medical doctorate from the American University Of Caribbean School of Medicine in St.Maarten, Netherland Antilles in 2010.

Dr. Avashia is board-certified in Internal Medicine and completed his internship and residency at SUNY Downstate Hospital at University Hospital of Brooklyn in Brooklyn, New York. In 2014, he completed his sleep medicine fellowship at Winthrop University Hospital in Mineola, NY. Dr. Avashia joined Sleep Insights in 2015 as the Medical Director for the Olean site, where he diagnoses and treats pediatric and adult patients for variety of sleep disorders, including but not limited to: sleep-disordered breathing (sleep apnea), insomnia, hypersomnia (narcolepsy), sleep-related movement disorders (RLS) and parasomnia (sleepwalking).

Alan Aquilina, MD

Dr. Alan Aquilina graduated from the University of Rochester School of Medicine and Dentistry and completed his internal medicine residency at Strong Memorial Hospital. Dr. Aquilina continued with subspecialty training in Critical Care Medicine and Pulmonary Disease at Strong Memorial Hospital. He has actively been involved in sleep medicine since 1979.

Dr. Aquilina is a board-certified sleep sleep specialist and internist with extensive clinical experience. He joined Sleep Insights in 2015, diagnosing and treating patients for all sleep disorders, including but not limited to: sleep-disordered breathing (sleep apnea), insomnia, hypersomnias (narcolepsy), sleep-related movement disorders (RLS) and parasomnias (sleepwalking). Dr. Aquilina sees patients at the Penfield location.

Mary Ellen Alescio, FNP-C

Mary Ellen Alescio received her Bachelor of Science (RN) in 1993 and her Master of Science (FNP) in 2006 from the University of Rochester. As a Nurse Practitioner, she has provided patient care in the fields of dermatology, urology, allergy and immunology, family practice/internal medicine, and endocrinology.

Mary Ellen joined Sleep Insights in 2015 and provides sleep medicine consultations and patient care at the Penfield location.

Julia Stroud, FNP-BC

Julia Stroud received her Bachelor of Science in Nursing from Auburn University in Auburn, Alabama. She received her Master of Science in Nursing from Belmont University in Nashville, Tennessee, specializing as a family nurse practitioner. Julia has clinical licenses in four states, and has clinical patient experience in Tennessee, Alabama, and New York.

Julia joined Sleep Insights’ clinical staff in 2016 and currently provides sleep medicine consultations and patient care at the Penfield location.

Heather Wernle, PA

Heather Wernle received her Bachelor of Science in Physician Assistant Studies from the Rochester Institute of Technology in 2005. She has clinical experience in urology, surgical oncology, ENT (ear, nose, throat), hematology/oncology, and colorectal oncology. Prior to receiving her Physician Assistant licensure, Heather was a paramedic and tissue recovery specialist.

Heather joined Sleep Insights’ staff in 2017 and provides sleep medicine consultations and patient care at the Penfield location.

Timothy M. Enright, Ph.D., Licensed Clinical Psychologist

Dr. Enright's career is unique among psychologists and includes experience in business, technology and behavioral health research and practice. This variety of training and experience has improved his clinical skills resulting in solution focused, data driven treatment protocols.

Dr. Enright earned his doctoral degree in Clinical Psychology from The George Washington University in Washington, DC where he concentrated on Health and Community Psychology. He then specialized in behavioral medicine as a fellow in the Department of Anesthesiology at the University of Rochester Medical Center. He is a licensed Clinical Psychologist and currently holds faculty appointments at the University of Rochester and George Washington University.

Sleep Insights refers patients to Dr. Enright for cognitive behavioral therapy (CBT-I).

Management Team

Jeffrey O. Dann, CEO and President, Sleep Insights Management Services

Mr. Dann is an experienced Buffalo-based business and healthcare executive with over 30 years in the medical industry. He is currently the owner and operator of several healthcare related businesses including Sleep Insights, a regional sleep management services organization, Transource, a medical transcription company and Vital Alerts+, a telehealth software development company.

In 2006, Mr. Dann began a partnership with Sleep Insights Medical Services, a comprehensive sleep medicine practice based in Rochester founded by Dr. Ken Plotkin. Mr. Dann’s company, Sleep Insights Management Services, currently oversees the management of ten sites housed under the Sleep Insights brand.

Valerie Tingley-Groves, Vice President of Operations

Valerie is Sleep Insights’ Vice President of Operations, overseeing technical and business operations throughout our ten locations. She received her Bachelor of Arts from the State University of New York at Geneseo, followed by a Masters in Business Administration Health Care Management from the University of Phoenix. She interned with New York State’s Police Forensic Toxicology Department and worked as a Clinical Laboratory Technologist at Dansville’s Noyes Memorial Hospital prior to joining Sleep Insights in 2006. A registered Polysomnographic Technologist, Valerie served as Sleep Insights’ Technical Director since 2009 prior to her role as Vice President of Operations.