Physician-managed programs designed for lasting results — not quick fixes.
Losing weight is not simply a matter of willpower. For most patients, weight gain is driven by hormonal imbalances, metabolic adaptations, insulin resistance, and chronic inflammation — factors that no amount of dieting or exercise alone can fully address. At Four Peaks Primary Care & Internal Medicine, Dr. Fayz Yar Khan, MD, FACP approaches weight loss the same way he approaches every medical condition: with a thorough evaluation, a personalized treatment plan, and ongoing clinical oversight.
Our weight loss program is physician-managed from day one. That means your starting point is a full metabolic workup — not a generic meal plan handed to you at a weight loss clinic. Any medication we use, including GLP-1 receptor agonists like semaglutide or tirzepatide, is prescribed, dosed, and monitored by a board-certified internal medicine physician.
What Our Weight Loss Program Includes
- Comprehensive metabolic and lab evaluation — thyroid function, insulin resistance markers, lipid panel, HbA1c, and more
- GLP-1 / GLP-1 + GIP therapy (semaglutide, tirzepatide) when clinically appropriate — prescribed and managed by Dr. Khan
- Personalized nutrition and lifestyle guidance grounded in internal medicine, not fad diets
- Body composition monitoring — we track fat mass and lean mass, not just the number on the scale
- Regular follow-up visits to adjust your program as your body changes
- Integration with your overall health — weight loss managed alongside diabetes, hypertension, or thyroid disease
Why See an Internist for Weight Loss — Not a Weight Loss Clinic
Most weight loss clinics are staffed by nurse practitioners or medical assistants following a protocol. They are not equipped to evaluate why you are gaining weight, manage the interaction between a weight loss medication and your existing conditions, or adjust your program if something goes wrong.
Dr. Khan is a Fellow of the American College of Physicians (FACP) with board certification in internal medicine. He has managed patients with complex metabolic conditions — including diabetes, metabolic syndrome, hypothyroidism, and PCOS — throughout his career. When your weight loss program is run by your internist, it is connected to your full health picture.
Who Is a Good Candidate?
- BMI ≥ 27 with at least one weight-related health condition (diabetes, hypertension, high cholesterol, sleep apnea)
- BMI ≥ 30 regardless of other conditions
- Tried diet and exercise without lasting results
- Interested in GLP-1 therapy with proper physician oversight
- Existing condition (diabetes, hypothyroidism, PCOS) contributing to weight gain
Serving Phoenix, North Phoenix, Paradise Valley & Scottsdale
Our clinic is located at 10214 N Tatum Blvd, Suite B300, Phoenix, AZ 85028 — accessible from North Phoenix, Paradise Valley, Scottsdale, and surrounding communities. We are currently accepting new patients for our weight loss program.
Frequently Asked Questions
Does insurance cover medically supervised weight loss?
Coverage varies by plan. Some plans cover GLP-1 medications when prescribed for obesity or type 2 diabetes; others require prior authorization. Cash-pay options are available.
What is the difference between your program and a weight loss clinic?
Our program is run by a board-certified internist who evaluates your full medical history, orders labs, manages any underlying conditions, and monitors your response over time — not a standardized one-size-fits-all protocol.
Are GLP-1 medications like semaglutide and tirzepatide safe?
When prescribed and monitored by a physician, GLP-1 medications have a strong clinical safety record. Dr. Khan reviews your full medical history and current medications before prescribing.
Do I need a referral?
No. You can book directly as a new patient by calling (623) 256-4160 or using our online booking link.
Ready to Start?
Call (623) 256-4160 | Mon–Fri 9am–5pm | 10214 N Tatum Blvd, Suite B300, Phoenix, AZ 85028
Serving North Phoenix, Paradise Valley & Scottsdale
