Dr. Robert HardyMD

Internal Medicine

at Cornerstone Primary Care — Walnut Creek, CA

About

Robert Hardy, MD, brings an exceptional academic and clinical record to Cornerstone Primary Care. He earned his undergraduate degree at the University of Illinois and his medical degree at Baylor College of Medicine. He completed his internal medicine residency training at both the University of California, Davis and the University of California, San Francisco, followed by subspecialty fellowship training at the University of Chicago.

Dr. Hardy serves as a Clinical Professor at the UCSF School of Medicine and has held faculty positions at UC Davis and the University of Chicago. He chaired the internal medicine department at both John Muir Medical Center in Walnut Creek and Contra Costa County Regional Medical Center. He received teaching awards from UCSF and patient care awards from San Francisco General Hospital. The Center for the Study of Diseases named him a Top Doctor among all Bay Area physicians. His research spans early diabetes detection, valvular heart disease imaging, and treatments for target organ diseases. He also contributed a chapter to the world's most widely published internal medicine specialty textbook. Outside the office, he enjoys running, mountain biking, whitewater rafting, open-water swimming, and restoring historic adobe homes in the local area.

Education & Training

Undergraduate

University of Illinois

Medical School

Baylor College of Medicine

Residency

Internal Medicine, University of California Davis and University of California San Francisco

Fellowship

University of Chicago

Additional Training

Faculty positions at University of California, Davis and University of Chicago; Clinical Professor at UCSF School of Medicine

Certifications

Board Certified in Internal Medicine

Conditions Treated

diabetes
valvular heart disease
infectious diseases
arthritis
high blood pressure
high cholesterol
heart disease
asthma
lung disease
kidney disease
digestive disorders
migraines
neurological disorders
skin disorders

Who is Dr. Hardy right for?

Dr. Hardy is an excellent fit for patients who value a physician with deep academic training and research-informed clinical judgment. Patients managing complex conditions like valvular heart disease, infectious diseases, or diabetes benefit from his subspecialty background. His two-plus decades of medical teaching keep his clinical knowledge current. Patients who prioritize attentive, thorough care as they age consistently express strong confidence in his approach.

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Frequently Asked Questions

Dr. Hardy specializes in internal medicine with clinical focus on diabetes, valvular heart disease, infectious diseases, arthritis, high blood pressure, high cholesterol, heart disease, asthma, kidney disease, digestive disorders, and neurological and skin disorders.

Yes. Dr. Hardy holds board certification in internal medicine. He completed his residency at UC Davis and UCSF, followed by subspecialty fellowship training at the University of Chicago.

Dr. Hardy serves as a Clinical Professor at the UCSF School of Medicine. He held faculty positions at UC Davis and the University of Chicago. He has received prestigious teaching awards at UCSF and taught medical students and residents for more than two decades.

Yes. Dr. Hardy published several articles in peer-reviewed medical literature and contributed a chapter to the world's most widely published internal medicine specialty textbook, translated into nearly one hundred languages. His research covers early diabetes detection, valvular heart disease imaging, and novel disease treatments.

Dr. Hardy chaired the internal medicine department at John Muir Medical Center in Walnut Creek and at Contra Costa County Regional Medical Center. He also worked with the California Medical Association to develop a five-year health plan for the State and helped define health care policy during the COVID-19 pandemic.

Yes. Dr. Hardy's depth of clinical experience makes him well-suited for patients focused on healthy aging. His patients consistently report confidence in the thoroughness and attentiveness of his care over the long term.

Dr. Hardy received patient care awards from San Francisco General Hospital and the Center for the Study of Diseases named him a Top Doctor among all Bay Area physicians. His colleagues in organized medicine recognize him at local, state, and national levels.

Doctor profile last updated June 11, 2026