Dr. Daniel Cosgrove, MD


Founder and Medical Director


Dr. Cosgrove is the Founder and has served as the Medical Director of WellMax since 1998. “We consider that our patients may require a more personalized approach to their healthcare, especially for those busy individuals constantly on the go. We answer by offering the finest healthcare services that include executive physicals, Bredesen Protocol, and concierge medicine.”


Dr. Cosgrove earned a psychobiology degree from UCLA and received an M.D. from Washington University in St. Louis. He then trained in Internal Medicine at University of Utah Medical Center before opening WellMax in 1998.

Office and Clinical Staff


Physician Assistant

Mrs. St. John is a Certified Physician Assistant. Mary is a graduate of the esteemed Colorado Academy which led her to earn both her Bachelor of Science and Master of Medical Science from the prestigious Wake Forest University. Before enrolling in her physician assistant program, she served as a Certified Nursing Assistant (CNA) to better understand patients afflicted with various ailments such as Multiple Sclerosis, Parkinson's Disease, Alzheimer's Disease in home care and senior care settings.


She has years of primary care experience and has also worked as a physician assistant specialist in neurology treating patients with ADHD, severe headaches, epilepsy and obstructive sleep apnea. Mary hopes to forge long-term patient-provider relationships through their trust with her stellar skill sets for patient care.


Registered Nurse, Administrator

Jennifer has worked at WellMax for over fifteen years. She manages all aspects of patient care. She is meticulous and almost obsessively 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! 


Patient Wellness Advocate

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. 


Ultrasound Technician

Charlotte has been a full-time ultrasound technician for over twenty years. She has worked for over ten years at Desert Regional Medical Center, obtaining excellent images for gynecology, cardiology, vascular and other specialties. She has completed a Bachelor of Science in Oregon, but her ongoing meticulous approach has led her to complete further training in Diagnostic Medical Sonography and Echocardiography. 

She has an easy-going, gentle manner and is always smiling. She has become an integral part of the “family” at WellMax.

WellMax maximizes wellness with early detection of disease long before symptoms are present. We provide a methodical approach to an individual's healthcare.

Contact Us

45-200 Club Dr., Suite B
Indian Wells, CA 92210

(760) 777-7698