Our Team

The WellMax Team


Dr. Daniel S. Cosgrove

Dr Cosgrove is the Founder and has served as the Medical Director of WellMax since 1998

Dr. Cosgrove earned a psychobiology degree from UCLA. He received an M.D. from Washington University in St. Louis. He trained in Internal Medicine at University of Utah Medical Center.

He served for many years with a clinical faculty appointment at Loma Linda University School of Medicine. Dr. Cosgrove served for over ten years as an Emergency Medicine Physician at the Desert Regional Emergency Trauma Center in Palm Springs, where he gained broad experience in caring for medical and surgical problems. Later he opened a private medical office and has focused on providing comprehensive medical care to individuals.

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 and he was an instructor for ACLS (Advanced Cardiac Life Support) for many years.

He has been active with Jeff Bland and the Institute for Functional Medicine (IFM) in Gig Harbor, WA since nearly its inception. When IFM produced a medical textbook, Dr Cosgrove authored the chapter on men’s hormones and the role of androgens in women.

Most recently he has studied under Dr Dale Bredesen and is a certified physician provider for the Bredesen Protocol, which addresses patients who are at risk or who may have memory problems or Alzheimer’s Disease. Dr Bredesen’s best selling “The End of Alzheimer’s” has created a surge in awareness of the reversible elements of dementia, so patients can optimize cognitive function whether it is very mild or severely impaired.

He is married to Dr. Doriana Cosgrove, who provided anesthesia for heart surgery patients, and is now Board Certified in Aesthetic Medicine. She is the Director of Desert Med Aesthetics in Indian Wells (Drs. Cosgrove own and share the Indian Wells Medical Offices building. They have two sons and a daughter, and live in Rancho Mirage, CA. They recently celebrated their 25th wedding anniversary in a cooking class near Florence Italy.

John F. Feller, MD
Director, Early Detection Imaging Programs

Dr. John F. Feller

Dr. Feller provides oversight for the WellMax early detection imaging programs. Dr. Feller completed his medical training at Stanford University School of Medicine and his Fellowship training in orthopedic and body MRI. Dr. Feller became Chief of MRI at David Grant USAF Medical Center for many years.

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. Dr. Feller has special expertise in prostate imaging, and performs multiparametric prostate MRI. At DMI, one can have an MRI-guided focal prostate biopsy (rather than typical ultrasound guided multiple biopsies). Dr. Cosgrove collaborate with DMI staff for focal laser ablation of prostate tumors (rather than the old-fashioned complete prostate excisions offered as the only option at many centers). Dr. Feller has given over 200 invited lectures worldwide on orthopedic and body MR imaging, as well as on positron emission tomography (PET).

Jennifer McGrath, RN Clinical Supervisor and Administrator

Jennifer McGrath

Jennifer has worked at WellMax for over fifteen years. She manages all aspects of patient care. She is meticulous and almost obsess¬ively committed to providing the highest quality of personalized care. 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 performs the DEXA bone density and body composition studies. She administers cognitive tests and manages polysomnography and many other tests.

She is originally from Beaverton, Oregon. Her son is an avid baseball player. His team won CIF championship. She attends all the games!

Diane Von Kaenel CCMA

Diane Von Kaene

We found Diane teaching students how to provide quality medical care to patients. She was an outstanding instructor for over ten years, and worked in medical offices for many years prior to that. She has true expertise in hands-on patient care, including how to draw blood, handle specimens, work in the lab, do ECGs, and make the experience for the patient as smooth and pleasant as possible. Like many instructors, she is a stickler for details, so when it comes to coordinating medical care for our patients, she is a valuable addition to the healthcare team. She has natural genius in math so we let her create spreadsheets, query genetic databases, and optimize the WellMax Personal Health Portfolio for each patient.

Diane is a girl scout troop leader, and is frequently off on weekend adventures with the troop, that includes her two daughters. She also volunteers with her sons’ marching band and sports.

Renee Meza, MA Patient Coordinator

Renee Meza

Renee has worked at WellMax over thirteen years. She loves the idea of uncompromising patient care and she has remained committed to that promise for WellMax patients.

She worked at a major hospital as a phlebotomist where she gained true expertise in blood draws for labs. She manages most of our laboratory procedures of all types.

Renee has experience in urgent care and surgical procedures. She previously worked full-time in ENT and oncology offices, so she is familiar with intensive medical care of patients. She is trained in obtaining electrocardiograms, cardiac stress testing, DEXA, gynecology, and other procedures. She has built long-standing relationships with various specialty offices and she coordinates specialty care for WellMax patients.

Renee is proud of her son in the United States Air Force, and her daughter is now going off to college. She loves to cook, especially “Tex-Mex” food. Although originally from Texas she has made the desert her home.