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Meet Doc

Angelo Sambunaris, M.D., (known to many as simply “Doc”), is the founder and Medical Director of Dr. Sambunaris & Associates; CEO and Medical Director of the Institute for Advanced Medical Research; and Adjunct Professor, Mercer University College of Pharmacy.

A Certified Physician Investigator (C.P.I.), he has been a leader in the field of clinical research for over 20 years, establishing himself as a nationally known expert in the treatment of anxiety, depression, and other brain-based disorders.




Dr. Sambunaris’ mission is simple: to give you the care you need to live your best life. While many would say we specialize in medical/brain health disorders with behavioral symptoms. We keep our focus lies in brain health and wellness – helping patients achieve an optimal level of function in all aspects of their lives by achieving a balance of the right chemicals in the brain.




Dr. Sambunaris’ experience helps him provide cutting-edge solutions to health issues with a traditional approach to patient care. While his practice philosophy may be a little “old-fashioned”, his ongoing commitment to doing hands-on clinical research gives him a direct line of sight into new and exciting discoveries in medicine.

The focus of his research is on anxiety disorders and depression with additional interests in the areas of obsessive/compulsive disorders, insomnia, chronic pain, insomnia, substance abuse/dependence, pain, migraine and eating disorders. To date, Dr. Sambunaris has led more than 200 studies, working with over 3,000 patients and study participants.

His background includes:

• Principal Investigator, Institute for Advanced Medical Research at Mercer University

• Founder, Atlanta Institute of Medicine & Research (renamed the Institute for Advanced Medical Research in 2014)

• Adjunct Professor, College of Pharmacy, Mercer University

• Director, Solvay Pharmaceuticals, Psychiatric Clinical Research

• Associate Director, Bayer Pharmaceuticals, Psychiatric Clinical Research

• Lieutenant Commander, United States Public Health Service




Medical School

• University of Colorado Health Science Center School of Medicine; Denver, CO - Medical Doctor


• Hershey Medical Center of the PA State University, Hershey, PA - Internal Medicine

Residency Training

• Department of Psychiatry, School of Medicine, University of Colorado Health Sciences Center, Denver, CO

Externship Training (Department of Psychiatry Career Resident Program)

• General Adult Psychiatric Service, Colorado State Hospital, Pueblo, CO

Fellowship Training

• National Institute of Mental Health, Research Officer Group of US Public Health Service, Washington, DC



  • Pharmaceutical Research Sponsors


    Medications Researched &
    Brought to Market

    Academic Research Partners


    Publications & Work

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Dr. Sambunaris & Associates

Psychiatrist & Wellness Specialist located in Alpharetta, GA

The goal of the lifestyle wellness specialists, psychiatrists, and support staff at Dr. Sambunaris & Associates is to provide high-quality mental health care to men and women living in and around Alpharetta, Georgia. With a commitment to clear communication and individualized care, patients can achieve peace, balance, and a better overall quality of life.

Psychiatrist Angelo Sambunaris, MD, leads the team at Dr. Sambunaris & Associates and prides himself on being old-fashioned. Dr. Sambunaris’s background is in clinical research, uniquely positioning him as a private practice provider. In addition, Dr. Sambunaris and his team take an “old-school” approach to treatment, performing a thorough physical exam and complete medical history on every new patient. 

The providers have extensive experience diagnosing and treating an array of mental health conditions, including major depression and postpartum depression, anxiety, post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD), fibromyalgia, substance dependence, and attention deficit disorder (ADD).

The team’s passion for individualized care affects every aspect of the practice. While most doctors only spend 20-30 minutes with patients, Dr. Sambunaris and his staff dedicate a full 60 minutes to complete initial consultations.

The team also promises to educate and inform patients. Dr. Sambunaris loves answering questions and empowers men and women through one-on-one consultations and clinical psychiatry sessions.

Dr. Sambunaris’ commitment to spending more time with patients also means lower overall costs of care, lower hospital readmission rates, and fewer preventable emergency hospital admissions.

The team at Dr. Sambunaris & Associates also promises 100% patient confidentiality. Since entering private practice, Dr. Sambunaris has kept paper records and never shares treatment data with insurance companies or employers. 

To access the best, most comprehensive psychiatric care, partner with the team at Dr. Sambunaris & Associates. To make your appointment, call or use the online booking tool today.

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Telehealth: The Advantages of Telemedicine

Struggles to get to the clinic? Trying to reduce your exposure to COVID-19, as well as other contagious illnesses, and still need to see your doctor? Telehealth is safe and easy — receive quality care from anywhere.


Words from our patients

  • Healthgrades

    "I highly recommend Dr. Sambunaris! He was instrumental in diagnosing our son."

    Verified Patient
  • Healthgrades

    "Very caring and genuine. Takes his time to talk and explain."

    Verified Patient
  • Healthgrades

    "He was a very friendly doctor. The wait time was short, staff was polite, and office was clean. Great doctor, his praise is well deserved!"

    Verified Patient
  • Vitals

    "I love Dr. Sambunaris. When things seemed bleak, he gave me the tools I needed to cope. He listens!!! He is a dear man, and a wonderful doctor..."

    Verified Patient

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