
Dr. Feyrer-MelkM.D.
Anne-Marie Feyrer-Melk, M.D., has been in practice since 1997. She received her medical degree from the University of Wisconsin Medical School, and her internship, residency, and fellowship training at Banner Samaritan Medical Center in Phoenix, focusing on cardiovascular diseases. She was recently honored as a 2022 Outstanding Woman in Business by the Phoenix Business Journal.

Dr. Steve Feyrer-MelkPh.D., M.Ed.
Dr. Steve received his Ph.D. from Arizona State University in Exercise Science and Wellness, and his master’s degree from Bowling Green State University in Human Performance. He currently serves as the Chief Science Officer for a med tech company, has a history of applying his craft in both health and athletic-performance settings, and is a highly sought-after consultant and speaker.

Dr. Donna DemarcoC.H.N., Ph.D.
Dr Donna is a Board Certified Holistic Nutritionist and has been a part of the Optimal Heart Center & Body Lab practice since 2011. Besides working with patients she is a Health Educator for Cigna Onsite Health and Summit Health and conducts Biometric health Screenings. She has also been an Adjunct Professor with Maricopa Community College since 2004.

Synthia Duncan Office Manager
Synthia is a native to Arizona but had the opportunity to live in multiple states through the military. She has over 10 years of customer service and management experience. Synthia has a passion for helping people feel their best. She loves spontaneous adventures and exploring new places.

Alex HolginMedical Technician
Alex is a native Arizonian with over eight years of experience working in the medical field. As a valuable member of the OHC Staff, Alex is a Medical Technician and also manages the complex scheduling and Member Patient flow from her front desk location. She loves being able to give high quality care to patients and making them feel right at home.

Laura SkeensFront Receptionist
Laura is an Arizona native and 2017 graduate from Grand Canyon University with a Bachelor of Science in Biology. She has 5 years of experience in medical clinics and began as a medical scribe in a traditional cardiac clinic. As a team member Laura is often in the front welcoming patients and managing scheduling, but she also works in our back office with Alex as needed to perform lab draws and other testing. She is a newlywed as of June 2022 and enjoys spending time with her husband. She is also a proud dog mom to two schnauzers, Bentley and Winston, and loves spoiling them.