Our Team

The WellMax Team


Dr. Daniel S. Cosgrove

Dr. Cosgrove earned a psychobiology degree from UCLA. He received an M.D. from Washington University in St. Louis (rated number three out of 146 medical schools in the USA!). He is Board Certified in both Internal Medicine and Emergency Medicine. He served for many years as clinical faculty appointment at Loma Linda University School of Medicine.

Dr. Cosgrove has been certified by the Federal Aviation Administration as an Aviation Medical Examiner. He was the Medical Director of Airstar International Air Ambulance for many years.

He has published several scientific articles, and has been recognized as a medical expert by the Superior Court of San Bernardino County. He is a prinicipal investigator in the KIMS human growth hormone study.

He is married to Dr. Doriana Cosgrove, an anesthesiologist. They have two sons and a daughter, and live in Rancho Mirage, CA.

Dr. John F. Feller

Dr. Feller provides oversight for the WellMax early detection imaging programs. He completed his undergraduate training in Metallurgical Engineering and Materials Science at the University of Notre Dame, then attended the Ohio State University School of Medicine, graduating summa cum laude. Dr. Feller subsequently completed four years of postgraduate medical training at Stanford University School of Medicine (1987-1991). Following Fellowship training in orthopedic and body MRI (1992), Dr. Feller became Chief of MRI at David Grant USAF Medical Center, a position he maintained for four years (1992-1996).

Dr. Feller is currently the Medical Director of Desert Medical Imaging in Indian Wells. He maintains an academic affiliation with Stanford University. Dr. Feller has co-authored numerous peer-reviewed journal articles and book chapters, and is an editor of the textbook Shoulder Magnetic Resonance Imaging. He has given over 200 invited lectures worldwide on orthopedic and body MR imaging, as well as on positron emission tomography (PET).

Elijah Bishop

Elijah Bishop (Eli) attended Pepperdine University in Malibu, CA, receiving a Bachelor degree in Sports Medicine with a minor in Nutritional Sciences in 1999. In December of 2002, he obtained a Master of Physical Therapy degree from Mount Saint Mary’s College in Brentwood, CA. Eli combines the principles of manual therapy, fitness, Pilates, and various forms of bodywork to restore function and improve one’s sense of well-being.

Eli has developed sport-specific training regimens for several professional athletes, and is a sought after strength and conditioning coach and personal trainer. Dr. Cosgrove has also been impressed with Eli’s diagnostic abilities in his approach to patients with pain or weakness in the neck, low back, hip or knee. Then, he moves from diagnosis to results, with success in motivating patients into individualized elegant programs for strength and conditioning that patients continue long after their visit with him.

Dr. Les H. Alhadeff

Dr. Alhadeff has collaborated with WellMax for many years as a Life Coach and psychiatric physician. He provides WellMax patients with services such as life-wellness consultation,
stress management, marital relationship and grief counseling as well as general psychiatric assessment.

Dr. Alhadeff graduated from Oberlin College then received his medical doctorate from Mt. Sinai School of Medicine. He also has a degree in health care management (MPH). Dr. Alhadeff is board-certified by the American Board of Psychiatry and Neurology and is certified by ASAM in addictionology. He has won numerous awards, including Palm Springs Life “Top 33 doctors” for several years in a row, the Lambert award for delivery of quality care, and both the Laughlin and Mead Johnson Fellowships.

Dr. Alhadeff has been on the Staff of the Betty Ford Center since 1992. He has always maintained a private practice specializing in the treatment of anxiety, bipolar disorder, marital and family problems as well as chemical dependency. Dr. Alhadeff has given numerous lectures and published a number of articles about stress management, anxiety, life-style addictions, dream analysis, the Enneagram, and physical ailments exacerbated by the brain and nervous system.

Jennifer McGrath

Jennifer has worked at WellMax well over ten years. She is meticulous and almost obsess­ively committed to providing the highest quality of personalized care. She manages our overall process of patient care, and leads our internal meetings. She is usually the first one here and the last to leave. She insures that all follow up care plans are completed, and makes certain that your Personal Health Portfolio™ is “buttoned up.”

Jennifer also does lots of hands-on patient care. She is licensed to perform the DEXA bone density and body composition studies. She administers cognitive tests, and performs cardiac treadmills, V02max, and many other tests.

She arrived in the desert here from Beaverton, Oregon, which she liked, but she believes is too cold and rainy there for full time living. She likes it better here (with us!).