Meet Our Team

Meet our premier age management specialist physicians team

Julie McCallen, M.D.

President of Cenegenics® Denver

Dr. Julie McCallen is the President of Cenegenics® Denver. She is board-certified in Family Medicine, a member of the Endocrine Society, the International Hormone Society, American Academy of Family Physicians, and the Age Management Medicine Group. After earning an undergraduate degree in Biochemistry from Cornell University, Dr. McCallen received her MD from the University of Pittsburgh School Of Medicine in 1990. She completed her residency in Family Medicine at the University of Wyoming-Casper in 1993.


Dr. Eipe Kuruvila

Center Physician

Dr. Kuruvila attended medical school at JIPMER, Pondicherry, one of the top medical schools in India. His graduate training was in the UK, including anesthesiology at The University of Bristol Hospitals followed by Higher Professional training at The Middlesex Hospital. He later attended Medical School in London for another four years. He and his family moved from London to Denver after they fell in love with skiing in the Alps. Dr. Kuruvila completed his fellowship in Anesthesiology and Pain Management at the University of Colorado Health Sciences Center in Denver.


Tim Watt, M.D.

Center Physician

Tim J. Watt, M.D., FAANS, and FAAAAM is a Kansas native who attended Wichita State University getting degrees in biology, chemistry and psychology. He then entered the MD/PhD program at the University of Kansas where he studied seizures while in graduate school. Dr. Watt did his surgical internship and residency in neurological surgery at the State University of New York Upstate. While there, he did award winning research on brain tumors. Major Watt is a veteran of the US Army first serving with the 357 Combat Support Hospital where he was Chief of Surgery and then at Tripler Army Medical Center where he was Assistant Chief Neurosurgery and head of Pediatric Neurosurgery. After the Army Dr. Watt entered private practice while also holding academic appointments at the University of Nebraska Medical School, Union College, and the University of South Dakota Medical School. Dr. Watt became interested in wellness and preventive medicine in 2003 becoming the first doctor to ever be Board Certified in both Neurosurgery and Anti-Aging Medicine. He has completed Fellowships in Anti-Aging Functional and Rejuvenative Medicine as well as Metabolic Medicine and Functional Endocrinology.

After 35 years of neurosurgical practice, Dr Watt left surgery to work full time at Cenegenics as his passion for helping patients was better served by keeping people healthy rather than trying to fix them after they became so ill they needed an operation. Dr. Watt is a Fellow of the American Association of Neurological Surgeons and the American Association of Anti-Aging Medicine.

Tim Watt, M.D. | Center Physician

Jason White

Health Performance Coach

Jason is a military veteran. He served almost 10 years in the Army, including 3 deployments to Iraq and is a recipient of the Purple Heart. He is a communications expert with experience as a police officer trained with the FBI to be a negotiator – where he learned active listening and how to pick up on key words. Jason uses a personalized approach when motivating members and likes to delve into root causes to help you see truly transformational results.

He is a certified strength and conditioning specialist, CrossFit level 2 coach, USAW level 1, and NASM certified nutrition coach.

Jason White, Health Performance Coach

Rod McCallen

Certified Personal Trainer

Rod is an ACSM certified personal trainer. As a master merchant seaman, Rod has always attended carefully to his level of fitness. He joined Dr. McCallen at Cenegenics® in 2008 and has been instrumental in the growth and development of Cenegenics® Denver.

Rod McCallen

Michelle Dayhoff

Office Manager & Member Experience Consultant

Michelle is a communication expert with experience in business development, team leadership, digital marketing, and corporate travel and events. Prior to joining Cenegenics Denver, Michelle was a Media Strategist for Salem Media Group where she produced marketing campaigns to help communicate with potential members. From 2017-2019, Michelle was the Senior VP and General Manager for Event Travel Management. Michelle has also worked as a Director of Business Development for American Express Global and was Director of Strategic Marketing for Travel Leaders.

Michelle received her MBA from Regis University in Denver, where she graduated Summa Cum Laude.

Michelle Dayhoff, Office Manager and Member Experience Consultant

Melissa Morgan

Member Experience Specialist

Melissa is a Member Experience Specialist, based out of Northeast Pennsylvania. She has been with Cenegenics since 2014 and has been working with Cenegenics Denver since October 2020. Her passion for health and wellness is demonstrated not only through her work, but also as a yoga teacher and competitive equestrian. She strives to live a healthy lifestyle while helping others do the same through Cenegenics.

Melissa Morgan


Resources for You


Read our White Paper, Defy Your Age with Cenegenics, and learn about the science of age defiance and the Cenegenics process.

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