Look good. Feel good. Perform well.

Like the most advanced machinery, your body and health are multi-faceted, with many elements working in harmony. When you embrace the latest innovations in aesthetics, nutrition, fitness and body shaping, you’ll be ready to put your best foot forward in the world and get the very most out of life. Wellness is a journey – one we’d love to embark upon with you, together in Oceanside Medical.

With a wealth of experience in both the emergency room and as a medical lecturer, Dr. McAteer saw firsthand how someone’s lifestyle could impact their health — and how wellness was the direct catalyst in performance, image, and self-confidence. With Dr. McAteer empowered with the clear and compelling vision of enhancing lives from the inside out, Oceanside Medical was born.


Botox & Dysport
Juvederm & Restylane


Dr. Kristina McAteer - Medical Director - Oceanside Medical

Dr. Kristina McAteer, MD, FACEP

Medical Director – Oceanside Medical

Dr. McAteer grew up in upstate New York and moved to RI in 1994 to attend college where she earned her Bachelor’s degree in Biology. She worked in the field of public health before attending University of Vermont College of Medicine to earn her Doctorate of Medicine in 2005. Completing her residency in Emergency Medicine in 2009, Dr. McAteer is currently board certified in Emergency Medicine. She has been practicing professionally in Rhode Island since that time.

Opening Oceanside Medical has been a personal goal for her, as she was tasked to diagnose disease repeatedly in her professional work — all the while realizing that much could have been done on the side of prevention. This is the beginning of a new chapter that will focus on the overall health of the body and mind, making that mind-body connection with the goal to help patients look great, feel great and have the capacity to perform well in their daily lives.

Rebecca Hassel - Oceanside Medical

Maggie Elson

Office Manager

Maggie is thrilled to be working with Dr. McAteer and this talented team of professionals who are committed to providing our clients with a stellar medical spa experience. Maggie moved to Rhode Island with her growing family almost 25 years ago and immediately fell in love with our beautiful state. After staying home to raise her family, she began her second act working as an administration assistant. The mother of three beautiful daughters and two adorable grandsons, she loves spending time with her family and friends. She enjoys time on the water, sailing and kayaking, plays tennis all year around and volunteers in the community.

Rebecca Hassel - Oceanside Medical

Diana Afonso

Diana Marie Afonso, PA-C completed her undergraduate degree at Providence College, double majoring in Biology (BS) and Spanish (BA). She continued her graduate career at Rutgers Medical School in New Jersey, where she received her Master’s degree in Science/Physician Assistant studies. She has been practicing emergency medicine for Brown EM at RIH and Miriam Emergency Departments for the past ten years. Diana is also an Adjunct Professor at Johnson & Wales, Bryant University and Tufts University PA programs. She is a member of the Division of Sex and Gender in Emergency Medicine and also an educator for the Emergency Medicine Physician Extender Development Program at Brown EM. Diana is passionate about educating her patients on disease prevention, promoting healthy lifestyles, and boosting all of her patients’ confidence.

Rebecca Hassel - Oceanside Medical

Gino Paolucci, DNP, NP

Gino Paolucci, DNP, NP, completed his undergraduate degree at Roger Williams University in Social & Health Sciences. He later went on to complete a Bachelor of Science in Nursing, and then a Masters of Science in Nursing as a Nurse Practitioner. He is currently completing doctoral-level coursework in Healthcare Leadership and Translational Research. Gino later completed a postgraduate training program in Emergency Medicine and worked in the emergency department, and has now transitioned to the Lead Advanced Practice Practitioner for Interventional Neuroradiology and Vascular Neurology at RI Hospital. He is proud to give back to students and holds faculty appointments at several local universities. Aside from neurovascular diseases, Gino’s interests include fitness as well as men’s health and aesthetics.

Rebecca Hassel - Oceanside Medical

Rebecca Hassel, PA-C

Rebecca has been a Physician Assistant for 15 years, specializing in Emergency Medicine and Acute Care and is a preceptor for students in the ED. She graduated from Syracuse University with a Bachelor of Science in the field of molecular biochemistry, and completed a master’s degree in Physician Assistant studies in Albany, New York. She also spent time working at the National Institutes of Health, doing cancer research. Rebecca has a passion for plants, and is an amateur botanist, believing in the power of herbal medicine as an adjunct to current medical practice. Realizing the benefits of functional medicine, Rebecca has found an interest and a passion for hormone support therapy. She has used her technical and procedural skills to make the practice of Botox, filler, and facial work essential parts of her aesthetic practice.

Marissa Quirk - Oceanside Medical

Marissa Quirk, ARPN,FNP-C

Marissa is a board-certified Family Nurse Practitioner. She completed her Bachelor of Science in Nursing at the University of Rhode Island and went on to pursue a Master of Science in Nursing at Chamberlain University in the Family Nurse Practitioner specialty. As a registered nurse, she has over ten years of direct bedside critical care nursing experience. Marissa is passionate about providing patients with holistic care and enjoys collaborating with patients to develop treatment plans which focus on patient goals.

Marissa Quirk - Oceanside Medical

Mariesa Igliozzi

Mariesa Igliozzi has been an Operating Room Nurse for 37 years and has worked with many top plastic surgeons in and out of surgery. It has been a natural transition to Oceanside Medical and the world of aesthetics and wellness. As a surgical nurse Mariesa has learned to help assess and evaluate aesthetic concerns such as laxity, asymmetry, and other issues which bring people to seek treatment. She is certified in neuromodulator and filler injections, EmSculpt, HydroSpa facials, Exilis RF, TrimLaze fat reduction, IPL skin rejuvenation and hair removal, microneedling with RF, and is also licensed in permanent makeup artistry and microblading. Mariesa loves being able to help clients find the right solutions that make them feel their best.

Jason Xynellis

Jason Xynellis, PA-C

Jason Xynellis is a board certified Physician Assistant who has recently relocated his practice to Oceanside Medical. Jason is originally from Warwick and brings 15 years of direct patient care experience in the fields of general neurology, emergency medicine and primary care. He has been employed as a primary care provider for the past decade.

He holds a Bachelor of Science in Biology from The University of Rhode Island and is a 2007 graduate of the Albany Medical College PA program. Jason is also a founding adjunct professor and lecturer for both the Bryant University and Johnson and Wales PA programs.

Jason’s clinical interests include diabetes management, memory and cognitive health, headache management and regenerative/integrative medicine. Jason accepts most commercial insurance plans and medicare. He also offers a membership based concierge plan.