Experience Exceptional Primary Care in Mesa, AZ

Dr. Preston Ashby combines over a decade of expertise in internal medicine with a patient-first approach to achieve your unique health goals, helping you thrive as a whole person. Now accepting new patients ages 18+ in Mesa, AZ.

Choose Dr. Preston Ashby, adult health and wellness experts in Mesa, AZ.

Board-Certified Physician

Dr. Preston Ashby has a decade of expertise in adult health and wellness.

10+ Years of Expertise

Dr. Preston Ashby is committed to a patient-first approach that goes beyond prescriptions.

Patient-First Approach

Dr. Preston Ashby specializes in internal medicine and adult primary care.

Trusted Internal Medicine Doctor & Primary Care Provider

Dr. Preston Ashby is an internal medicine physician who sees beyond symptoms to understand the complete picture of your health. Combining deep expertise in adult medicine with a thoughtful, comprehensive approach, he puts you at the center of your healthcare decisions.

Drawing from years of experience, Dr. Ashby excels in both preventive primary care and the intricate management of chronic conditions. He also helps patients achieve sustainable weight loss through medical programs tailored to their unique needs and lifestyle.

With Dr. Ashby, you’re never just another appointment – you’re a person on a journey to better health. From managing complex medical conditions to helping you make positive lifestyle changes, Dr. Ashby’s mission is to support your vision of optimal wellness.

Learn more about Dr. Ashby today!

Featured Services

Chronic Disease Management

Medical Weight Loss

Primary Care

Insurance Accepted

Dr. Preston Ashby is in network with UnitedHealthcare and accepts both Medicaid and Medicare. He is committed to helping the Mesa community access health care–if you have a different insurance than what’s listed here, please contact the practice to discuss how we can help you.

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Meet Our Doctor

Dr. Preston Ashby is a board-certified internist with over a decade of experience specializing in adult primary care, chronic condition management, and medical weight loss. His patient-centered approach focuses on treating the whole person for the best health outcomes.
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Preston Ashby, MD

Board-certified Internist

Conveniently Located In Mesa, Arizona

Mesa’s Most Trusted Primary Care Provider is Here for You

Take charge of your health—call or click to request an appointment today!