Ross Pirkle, MD, MS
Board-certified internal medicine specialist Ross Pirkle, MD, MS, serves as a physician and advocate for patients at Cornerstone Primary Care in Walnut Creek, California.
With degrees from the University of California, Berkeley and the University of California, San Francisco, Dr. Pirkle has practiced medicine in the Walnut Creek area and John Muir Hospital for 2 decades. He served as chief of medicine at John Muir Medical Center for two terms, where he remains a leader in the medical community.
Dr. Pirkle helps women and men navigate the vast and sometimes overwhelming health care system and can call upon relationships that he maintains with professors of medicine at UCSF, Stanford and even the Mayo Clinic. He finds great joy in practicing internal medicine and uses all his scientific knowledge to help patients achieve optimal health.
Dr. Pirkle empowers patients to achieve their health goals and believes in using a combination of therapies, including Acupuncture, behavioral health, body work, or Chiropractic, along with Traditional Medicine, to create wellness.
For patients looking for a doctor who is on their side when it comes to better health, contact Dr. Pirkle at Cornerstone Primary Care.
Robert Hardy, MD
Robert A. Hardy, MD is board certified in Internal Medicine and is a Clinical Professor at the University of California, San Francisco School of Medicine.
A native midwesterner, Dr. Hardy took his undergraduate degree at the University of Illinois, earned his medical degree at Baylor College of Medicine, completed residency training programs at both the University of California, Davis and the University of California, San Francisco and subspecialty fellowship training at the University of Chicago. He has held faculty positions at both the University of California, Davis and the University of Chicago, has served as a consultant physician to Veterans Administration Medical Centers in northern California and has served as department chair for both John Muir Medical Center-Walnut Creek and for the Contra Costa County Regional Medical Center. He has also received awards from San Francisco General Hospital for excellence in patient care and recognition from the Center for the Study of Diseases as a “Top Doctor” among all Bay Area physicians.
Outside of his busy and enjoyable career Dr. Hardy enjoys time with his adult children, two young grandchildren and a wide range of recreational sports activities that includes middle-distance running, mountain biking, whitewater rafting and open-water swimming. His hobby interests include cultivation of native California plants and restoration of historic adobe homes in the local area.
Dr. Hardy brings a passion for considerate, compassionate care and a wealth of experience to our practice.