Dr. Nicole A. Heinrich is a board-certified veterinary dermatologist with nearly two decades of full-time clinical experience in specialty referral practice. She earned her Doctor of Veterinary Medicine from the University of Minnesota following her undergraduate studies in biology at the University of Wisconsin–Milwaukee. Dr. Heinrich completed a small animal rotating internship in Chicago and went on to complete her dermatology residency at McKeever Dermatology Clinics in Minnesota.
Dr. Heinrich serves as the residency director for McKeever Dermatology Clinics and is deeply committed to training the next generation of specialists. She has an extensive record of clinical research and publication, contributing to leading resources including Veterinary Dermatology, Veterinary Record Case Reports, Merck Veterinary Manual, Clinical Small Animal Internal Medicine and Plumb’s Pro, as well as co-authoring the textbook Skin Diseases of the Dog and Cat.
An experienced educator and dedicated clinician, Dr. Heinrich has delivered numerous lectures to veterinary audiences and continues to be actively involved in advancing dermatologic education through research, publishing, and mentorship. Her clinical and academic interests include allergic skin disease and complex otitis.
Stephen McCourtney
Business Director, Co-owner
Stephen McCourtney brings more than 30 years of leadership experience spanning healthcare, technology, operations, and entrepreneurship. Before joining McKeever Dermatology Clinics as co-owner in 2017, he led large-scale business and technology initiatives for Fortune 100 organizations, including banking, healthcare, manufacturing, and financial services companies. Since becoming co-owner in 2017, he has helped guide the growth of the Midwest’s largest veterinary dermatology practice.
He is passionate about building exceptional teams and creating innovative solutions that improve outcomes for patients, pet owners and referring veterinarians. He is also the co-founder of Mobile Veterinary CT, bringing advanced imaging services directly to veterinary practices.
DR. Charlie Johnson DVM, PhD, DACVP
Dr. Johnson obtained his veterinary degree from the University of Minnesota. Following graduation, he worked as a mixed animal veterinarian. Subsequently, he returned to school at Iowa State University to pursue additional training in pathology, where he earned a PhD in veterinary pathology and completed a residency in anatomic pathology. Because of his desire to merge clinical practice with pathology, he later returned to small animal/general practice and worked as a diagnostic pathologist. During this time, he developed an interest in dermatology and dermatopathology and decided to pursue a residency in dermatology. He’s excited to join the McKeever Dermatology team and is Fear Free Certified. In his free time, he enjoys running, playing pickleball, and spending time with family and friends.
Dr. Rendina McFadden, DVM, DACVD
Dr. McFadden joined the McKeever Dermatology team in 2014 to pursue a three-year dermatology residency training program. Prior to starting a residency, Dr. McFadden worked at a busy north metro small animal general practice for 9 years where she did everything from managing diabetic patients to tooth extractions. She achieved Diplomat status with the American College of Veterinary Dermatology in 2017.
Dr. McFadden has a BA from Luther College and a veterinary degree from the University of Minnesota. She is a member of the American Academy of Veterinary Dermatology as well as the state and national Veterinary Medical Associations. Dr. McFadden especially enjoys working with patients whose skin problems have significantly impacted their life or those of their families. When not in the office, Dr. McFadden enjoys spending time with her husband, two children, two big dogs, and one very pampered kitty.
Dr. Geishly Ann Cruz Matos, DVM
Dr. Cruz Matos was born and raised in Puerto Rico and received her bachelor’s degree in Veterinary technology from the University of Puerto Rico, Medical Science Campus in 2010. She continued on to receive her Doctor of Veterinary Medicine degree from Tuskegee University in 2020. Then she completed a small animal rotating internship at Blue Pearl Veterinary Specialists in Georgia. After finishing that rigorous program, she began to work as an emergency relief doctor. until pursuing a residency in dermatology. Dr. Cruz is so grateful to start a three-year residency program at McKeever Dermatology Clinics and to be part of the management of dermatology disease in order to achieve a better quality of life. She is excited to be there for you and your pet including the Hispanic community. Even though she likes every aspect of dermatology, she has a particular interest in atopic dermatitis, and immune-mediated diseases. In her free time, she enjoys being with her dog Oxumnare, chasing sunsets, listening to good music and drawing.