Personalized Primary Care for All of Your Health Concerns
Primary care is your first stop for all health concerns—whether it’s a routine checkup, managing a chronic condition, or addressing an urgent health issue. It’s about keeping you healthy through personalized care and preventive strategies.
Dr. Ashby provides a full spectrum of primary care, from routine check-ups to comprehensive treatment, to adults in Mesa, AZ. He emphasizes preventive care to help you stay healthy and catch potential issues early, while also providing thorough treatment when health challenges arise.
Dr. Ashby’s practice offers a full range of primary care services, including:
- General health counseling
- Annual physical exams
- Wellness visits
- Preventative screenings
- Health assessments
- Vaccines and immunizations
- Treatment for acute illnesses
- Work and travel physicals
- Medication management
- Specialist referrals

Need Primary Care? Choose Dr. Ashby
Dr. Ashby believes great healthcare starts with putting you first. That’s why each service is delivered with careful attention to your individual needs, ensuring you receive personalized care that aligns with your health goals.
Here’s why so many patients trust Dr. Ashby for their primary care:
- We treat more than just symptoms—we focus on the bigger picture. By addressing the root causes of health issues and understanding your unique goals, we help you achieve long-term wellness, not just short-term relief.
- Your health journey deserves attention and understanding. We take the time to get to know you, listen to your concerns, and provide solutions tailored to your lifestyle. You’ll never feel like just another appointment here.
- When you visit Dr. Ashby, you’ll find more than expertise—you’ll find genuine care. We create a welcoming environment where you feel comfortable, supported, and respected.
When you choose Dr. Ashby as your trusted primary care provider, you receive personalized care tailored to your health goals, keeping you on track for long-term wellness.
You Deserve A Dedicated Primary Care Physician
Having a primary care physician (PCP) offers invaluable continuity of care, allowing you to build a trusting, long-term relationship with a professional who understands your health history and unique needs. Unfortunately, one-third of Americans don’t have a PCP, often relying on urgent care centers or emergency rooms when health issues arise. While these options can be helpful in emergencies, they lack the personalized care and preventive focus that a primary care doctor provides.
Dr. Ashby offers the comprehensive, ongoing care you need to stay ahead of health concerns. Take the first step toward better health—request an appointment with us today.

Frequently Asked Questions about Primary Care
What’s the difference between primary care and internal medicine?
Primary care is a broad field of medicine that serves as the first point of contact for patients, offering preventive care, routine checkups, and treatment for a wide range of health concerns. Internal medicine is a specialized branch of primary care that focuses exclusively on the health needs of adults, including the prevention, diagnosis, and management of complex medical conditions.
Dr. Preston Ashby’s board certification and expertise in internal medicine means he has advanced training in adult health, allowing him to provide expert care for everything from routine wellness visits to chronic disease management. By choosing a primary care provider with a specialization in internal medicine, you gain a dedicated partner who understands the complexities of adult healthcare and is committed to your long-term well-being.
How do I schedule an appointment?
o schedule an appointment with Dr. Preston Ashby, you can call the office at (480) 943-1220 or submit an appointment request. When you come in for your visit, please bring a valid ID, insurance card, a list of current medications, and any relevant medical records. If you’re a new patient, completing any necessary paperwork in advance can help streamline your check-in process.
What should I expect during my first primary care appointment?
Your first visit with Dr. Preston Ashby is focused on understanding your health history, current concerns, and long-term wellness goals. He will take the time to review your medical background, discuss any ongoing symptoms or conditions, and perform a thorough examination. Depending on your needs, he may order lab work, screenings, or vaccinations. This visit is also a great opportunity to ask questions and establish a care plan tailored to you.
How do specialist referrals work?
If you require specialized care beyond what Dr. Preston Ashby provides, he will refer you to a trusted specialist. As an internal medicine physician, he has extensive experience managing complex conditions and coordinating care with other medical professionals. He will guide you through the referral process, ensure your specialist has all necessary medical records, and remain involved in your overall treatment plan.