Research Team

Selika Gutierrez-Borst, MS, RN

Clinical Director

Selika Gutierrez Borst, is a Masters prepared Registered Nurse with a Nurse Practitioner degree from North Park University on Chicago’s north side. She brings 20+ years of clinical expertise along with 10 years of research from Rush University. Selika has a strong background in Adult Clinical Psychiatry and Internal Medicine.

Selika works closely on the clinical side as well as the research side with Steven H. Dayan, M.D. for the past 12 years. Currently treating patients with neurotoxins, fillers, radio frequency techniques, microneedling, Coolsculpting, ultra sound devices and lasers. Selika has embraced the aesthetic world with her knowledge and attention to detail. She enjoys learning the ins and out of the aesthetic field and is well informed on the latest treatments to improve skin’s youthful appearance.

Nimit Gandhi, M.D.

Assistant Clinical Director

Dr. Gandhi graduated medical school from American University of Antigua College of Medicine in 2016. He brings research experience in the fields of nephrology and endocrinology. For the last 5 years, Dr Gandhi has worked closely with Dr Dayan on aesthetic and dermatology clinical trials, while learning about new devices and procedures. Dr. Gandhi, is very well versed in In-Office Procedures and how to bring new technology to the research clientele. He takes pride in his work and what clinical trials he brings to DeNova’s research population.

Andrew Mastro, PA-C

Physician Assistant

Andrew was born and raised in the Chicago suburbs and received his Bachelor of Science at Indiana University, Bloomington, graduating with honors. He completed his Master of Science in Physician Assistant Studies at Rush University College of Health Sciences, where he currently is a guest lecturer and preceptor for Rush PA students. Andrew has expertise in medical dermatology for all age ranges, mole checks, cosmetic dermatology, including toxins, lasers and glycolic peels; excisions, shave and punch biopsies. He values the patient-provider relationship, is eager to build a lasting partnership and aims to make patients feel their absolute best. Andrew has a focus in procedural and medical dermatology, particularly psoriasis and atopic dermatitis. Andrew joined DeNova Research in September 2020 and has been a sub-investigator on all dermatology clinical trials.

Outside of the clinic, Andrew is a an art enthusiast, triathlete and avid live music fan.

Benjamin Caughlin, MD, FACS

Dr Benjamin Caughlin is a double board certified Facial Plastic Surgeon. He completed his residency in Otolaryngology – Head & Neck Surgery at the University of Illinois at Chicago. He then completed his fellowship training in Facial Plastic Surgery at the University of California – Irvine. He has become known for buccal fat pad contouring, facial sculpting and defining the jawline. He is the director of facial plastic surgery, facial trauma and scar management at Stroger Cook County for the head and neck surgery department. At Cook he is intensely involved in the training of the head and neck surgery residents for both Northwestern Memorial Hospital and the University of Illinois Medical Center. As clinical instructor at the University of Illinois Department of Head and Neck Surgery, he continues to research, learn, and present new techniques at national and international plastic surgery meetings. Dr Caughlin joined DeNova Research in June 2020 and currently serves as a Sub-Investigator on all aesthetic clinical trials.