At Zargarian Mehdi MD in Downey, we believe your doctor should know more than your chart — they should know you. Every visit is unhurried, every concern is taken seriously, and your long-term health is a partnership, not a transaction.
Trusted by patients across Downey and surrounding communities
Board Certified
Internal Medicine
Comprehensive care with a personal touch you won't find anywhere else.
Patient-Centered Care
Your health, your story
What We Offer
From preventive screenings to managing chronic conditions, Dr. Zargarian provides the full spectrum of primary care — always with time to listen.
Stay ahead of health issues before they start. Comprehensive exams, vaccinations, and screening tailored to your age and risk factors.
Diabetes, hypertension, asthma, and more — we create ongoing care plans that keep your conditions under control and your life on track.
Sick or injured? Same-day and urgent appointments available so you don't have to wait — or wait to get better.
Whether you're a new parent, a senior, or somewhere in between — we meet you where you are and build a health plan that fits your family.
Blood work, imaging referrals, and diagnostic testing — all coordinated through our practice so you get answers faster.
Nutrition, weight management, stress, sleep — real conversations about the factors that shape your health every single day.
MD
Board Certified
Internal Medicine
About Your Doctor
Dr. Mehdi Zargarian practices what he believes every patient deserves: a doctor who listens first, explains clearly, and treats you like a person — not a waiting-room number.
Based in Downey, California, his practice focuses on internal medicine and comprehensive primary care. He understands that your health doesn't exist in a vacuum — it's shaped by your work, your family, your stress, and your goals. That's why every visit is built around your story.
Whether you're managing a long-term condition, navigating a new diagnosis, or simply ready to get serious about prevention, you'll find a partner here — not a rush job.
Compassionate
Every interaction matters
Thorough
Nothing rushed, nothing missed
Accessible
Easy to reach when you need us
Continuous
Long-term partnership, not one-offs
Patient Information
Everything you need to make your first appointment as smooth as possible.
8423 Florence Ave
Downey, CA 90240-3918
Free parking available on-site
Please call our office to confirm insurance acceptance. We work with most major PPO plans and are happy to assist with billing questions.
New patients are welcome. Schedule your first visit today.
Get in Touch
Have a question, want to schedule an appointment, or need more information? Reach out — we respond promptly.
Phone
(562) 861-6371
Address
8423 Florence Ave, Downey, CA 90240-3918
Office Hours
Mon – Fri: 9:00 AM – 5:00 PM
We'll get back to you within one business day.
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We'll be in touch within one business day.