Clinical Staff

Meet Our Providers – Physician Assistants, Nurses & Clinicians


Dawn Davidson, R.N.

Dawn is a nationally recognized expert in the field of aesthetic non-surgical injections and artistry. After earning her nursing degree, she began her professional career in aesthetic medicine while her commitment and passion continued to grow. Dawn’s exceptional attention to detail and natural artistic eye lead her to become one of the first nurses in Illinois to administer collagen injections and the injection of BOTOX® Cosmetic®. Her career quickly propelled her into providing cutting-edge treatments, such as permanent and temporary dermal fillers as well as sclerotherapy and laser treatments.

Throughout her career she has pursued education and research to perfect her ability, searching for advanced products and procedures to provide the results her patients have come to expect. Over the years, she has acquired numerous satisfied patients that attribute their rejuvenated look to Dawn and the Ritacca Cosmetic Surgery & Medspa.


Katherine Schuster, PA

Katie started her career in 2017 as a Physician’s Assistant at Lutheran General Hospital where she assisted in several specialties including Plastic Surgery. Much of her daily responsibilities included assisting with cancer excisions, skin grafts, breast reconstruction, and other cosmetic and reconstructive procedures.  This is where Katie met esteemed plastic surgeon, Dr. Leonard Lu and grew to love the plastic & reconstructive surgery industry.

Katie works alongside Dr. Lu, bringing a female perspective to their surgical procedures. She regularly consults with new patients for reconstructive and plastic surgery, assists in OR cases, and performs small procedures including; steroid injections, draining seromas, and lesion removal.  Many patients have described Katie as “gentle”, “kind” and “caring”.

Katie brings a wealth of insight to our practice while maintaining a professional, positive attitude every day. In her spare time, she enjoys exercising, reading, and spending quality time with friends and family.


Joyce Vining RVT, LPN

Joyce Vining RVT, LPN is a nurse and registered vascular technologist who has specialized in Phlebology since 1994. Joyce has successfully treated thousands of patients with all types of venous insufficiencies including; spider veins, varicose veins; EVLT (Endovenous Laser Therapy), restless legs syndrome, venous ulcers and more.

Joyce has been a national consultant for the past 17 years training physicians, nurses and ultrasound technicians on the newest and efficacious techniques for vascular insufficiencies. As an onsite consultant, she has had the opportunity to share her knowledge and experience with many healthcare professionals nationwide.

In her spare time, Joyce loves to travel, spend time outdoors being active and practicing yoga.


Laura Barnett, NP-C

Laura is a Nurse Practitioner that has worked in the Aesthetics industry for nearly 5 years. Prior to finding her passion in aesthetics, she was a Registered Nurse for over 20 years and worked in Rheumatology at a private practice. Laura’s favorite treatment to administer is BOTOX® and lip filler. Fun fact about Laura – she plays tennis competitively and won the 2019 USTA National Title for her level in double and singles tennis!

“My life is my patients, my children, and tennis on repeat – and I love it!”


Jennifer Greco, Licensed Esthetician & Medical Assistant

Jennifer’s specialty and passion lie in laser and facial aesthetics.  She serves as a trainer for the National Laser Safety Institute and practices safety and efficacy with all patients while yielding amazing results.

Jen specializes in BBL photofacials, laser resurfacing, skin tightening, and other cosmetic rejuvenation treatments for the face & body. She has a strong passion for skincare and educating patients on personal regimens for flawless skin. Jen’s success can not only be measured by her vast experience of over 10 years, but also with glowing reviews from her patients.


Jacqueline Vaynberg, Medical Assistant & Clinician

Jacque specializes in an array of aesthetic and laser treatments including; laser hair removal, skin tightening, facials and more. She is laser certified and holds certifications in Microneedling and  HydraFacial.

She has a strong passion for helping our patients look the way they feel on the inside.


Vanessa Perez, Medical Assistant

Vanessa is our Certified Ultherapy Spe­cialist and is an expert on ultrasound technology for facial collagen stimulation. Many patients recognize Vanessa’s sunny disposition as she Dr. Ritacca’s lead assis­tant and also certified in Phlebotomy; as­sisting our registered vascular technologist with all vein procedures. She brings over 8 years of experience and great compassion to our patients. While she is busy with her patients in clinic, she is motivated to bring her patients the latest in technology by attending lectures and seminars. In her free time, she loves to travel with her family and stay active with outdoor activities.


Dayse Medina, CoolSculpting Coordinator

Dayse is the Coolsculpting Coordinator and manages all Coolsculpting treat­ments, pre/post care. She has been with our practice for over 8 years and has de­veloped an extensive knowledge in body contouring, fat reduction, skin tightening and facials.

Dayse also performs makeovers with our pharmaceutical make-up line.