Physician-Led Healthcare That Finally Feels Personal
Membership-based primary care and obesity medicine for adults who want direct access, evidence-based care, and a long-term partner in their health.
Trusted & Recognized
Nationally Recognized Physician Leader in Family and Obesity Medicine
Dr. Nylander is double board-certified, recognized by leading medical institutions, and a featured physician across Atlanta’s top publications.
Top Doctor
2026
Top Doctor
2025 & 2026
AAFP Fellow
Well-being Scholar
Board Certified
Obesity Medicine
Magna Cum Laude
Undergraduate
C. Pauline Burt Award
Medical Degree
Feinberg School of Medicine
Residency Training
Resident of the Year
scholarly project award
Board Trustee
State Leadership
Network Member
Atlanta, GA
Care Beyond Measure
Does your doctor know your middle name and how you take your coffee? Does your doctor provide an explanation before you even ask for one? Does your visit leave you feeling better, cared for, and truly understood?
Anyone can monitor your vitals. At Cassia Optimal Health, we take care of you. We collaborate. We customize. We craft a care plan that meets you exactly where you are and puts your wellness in your hands.
Why Cassia
Why Atlanta Patients Choose Direct Primary Care at Cassia
When healthcare is built around you, feeling good comes naturally. That’s why we’re not just practicing medicine—we’re creating a partnership. From preventative care to personalized wellness plans, we assemble the perfect tools and team to meet your needs. Seamless. Sincere. And simply put, the care you deserve. Think of us as an expert guide on your wellness journey.
Atlanta Primary Care & Wellness Services
Experience healthcare designed to help you achieve and maintain your optimal health.
Direct Primary Care
Nutrition Optimization
Weight Management & Lifestyle Medicine
Hormone & Inflammation Balancing
Wellness
At Cassia Optimal Health, we’re redefining healthcare. Our mission: to create a culture rooted in wellness and flourishing in health.
Find the Service That’s Right for You
Meet Dr. Zazi Nylander
Dr. Zazi Nylander, MD, FAAFP, DABOM, is a double board-certified physician in Family Medicine and Obesity Medicine, founder of Cassia Optimal Health, and a physician speaker focused on metabolic health, women’s health, and personalized primary care. Named an Atlanta Magazine Top Doctor in 2025 and 2026 and a Castle Connolly Top Doctor in 2026, she built Cassia as a different kind of practice — one where the standard is time, partnership, and care that’s actually personalized.
Feel Good Here.Feel Amazing Everywhere
Good health gives you the freedom to be yourself. To follow your heart because you feel great in your body. Good healthcare gives you the power to make it happen.
Membership Plans & Packages
At Cassia Optimal Health, care is designed around you. Whether you’re looking for a personal primary care physician, expert support for weight and metabolic health, or a focused approach to nutrition and wellness, you can choose the plan or program that best fits your needs and goals.
The Patient Journey
How care actually happens at Cassia.
Three steps from your first conversation to a plan that’s built around you.
Step 01
Discover
A free 15-minute Discovery Call. No commitment, no sales pitch — just a conversation to understand what you’re looking for.
Step 02
Define
Dr. Nylander designs a care plan built specifically for you. No standardized packages — every plan is built around you after the Discovery Call.
Step 03
Begin
Onboarding visit, baseline labs, your plan goes into action. Same-day access. No insurance billing. A physician who knows you.
What Atlanta Patients Say About Cassia Optimal Health
See what our patients say about Dr. Nylander and the Cassia Optimal Health experience.
Welcome to a New Era of Healthcare
Rooted in Wellness, Flourishing in Health
Step into a life of vitality. Schedule your Discovery Call with Dr. Nylander and feel the difference of healthcare that puts you at the center.