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Autoimmunity Institute

There are more than 100 autoimmune diseases that affect over 50 million Americans. They include: autoimmune thyroid disease, Celiac disease, inflammatory bowel disease, lupus, multiple sclerosis rheumatoid arthritis, scleroderma, Sjögren’s syndrome, and dozens of others.

At Allegheny Health Network (AHN), we understand these diseases impact all aspects of your life. And put you more at risk for life-threatening conditions such as heart attack and stroke. Through the AHN Autoimmunity Institute, we provide quick, expert diagnoses to help patients avoid such complications. We bridge the gaps across medical specialties to improve care and advance research. And learn to cure and prevent autoimmune diseases.

Why choose Allegheny Health Network to help with your autoimmune disorder?

Consider these 3 great reasons more people in western Pennsylvania are trusting AHN for their care:

  1. Access to nationally recognized specialists and disease-specific Centers of Excellence: At our Centers of Excellence, multidisciplinary teams of physicians and researchers share space and resources to collaborate on cutting-edge research, community outreach, advocacy, and unparalleled patient care.
  2. Expertise in women’s health: Because 75% of patients with autoimmune disorders are women, we work with specialists who understand their unique health needs.
  3. More options, coordinated treatment: Autoimmune diseases can affect all of your organs including your brain, heart, joints, kidneys, and skin. Therefore, you need many different kinds of doctors to collaborate on your care. Through the AHN Autoimmunity Institute, experts from different specialty areas come together to test novel therapies and oversee clinical trials. They also share national best-practice data.

AHN Autoimmunity Institute specialties and Centers of Excellence


Through the AHN Lupus Center of Excellence, you get comprehensive care to help improve your quality of life. Our patient concierge helps you set up appointments with a multidisciplinary team of specialists who collaborate on your treatment. Patients from 40 states and 14 countries have received care from our physicians through this renowned Center.

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Rheumatoid arthritis

Through the AHN Rheumatoid Arthritis Center, you get complete care to treat your complex symptoms. With rheumatoid arthritis, your body's immune system attacks healthy tissue, bones, and joints. We help slow the progression of the disease and treat any secondary conditions that may develop. 

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Inflammatory bowel disease

AHN’s Center for Inflammatory Bowel Disease (IBD) takes a multidisciplinary approach to your care. Our gastroenterologists, nutrition specialists, and clinical psychologists work together to ease your symptoms. AHN specialists engage in the latest treatments for different types of IBD that include ulcerative colitis, Crohn’s disease, and indeterminate colitis.

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Celiac disease

Maintaining a gluten-free lifestyle when you have Celiac disease is more than a food fad. It’s a necessity for your health. At the AHN Celiac Center, we provide you with expert care and guidance to help you manage your diet and nutrition. You also get help navigating treatment options so you may avoid any complications that could develop from the disorder.

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Patient Care and Research Center at West Penn Hospital

AHN Autoimmunity Institute doctors see patients in community locations throughout western Pennsylvania for your convenience. But you may also visit the Institute’s state-of-the-art headquarters at West Penn Hospital. West Penn recently opened a Patient Care and Research Center in the Mellon Pavilion for people fighting autoimmune disorders. The 11,000-square-foot space features 16 exam rooms, a dedicated infusion suite, an injection room, and a research laboratory.

It is the first center of its kind that gives you access to doctors, researchers, and support staff from different specialties who work toward a common goal — to offer compassionate care and eventually find a cure for autoimmune diseases. 

World-class doctors from these areas practice at the center:

  • Allergy and Clinical Immunology
  • Cardiology
  • Dermatology
  • Endocrinology
  • Gastroenterology
  • Infusion Therapy
  • Nephrology
  • Primary Care
  • Pulmonary
  • Rheumatology

Our specialists

Asthma, Allergy, Clinical Immunology
Ellen Lu, MD

Raghu Tadikamalla, MD
John Balacko, MD

Ron Maceyko, MD

Lavanya Viswanathan, MD

Heitham Abdul-Baki, MD

Swati Arora, MD
Luis Ortega, MD

Amhad Ajhajhusain, MD
Eric Bihler, DO
Tariq Cheema, MD
Tiffany DuMont, Do

Amanda Bembic, PA
Tanmayee Bichile, MD
Mary Chester Wasko, MD
Adam Dore, MD
Kristen Fischer, PA
Michael Lucke, MD
Susan Manzi, MD MPH
Tarun Sharma, MD