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Our Providers

The Asthma & Allergy Clinic of Northwest Arkansas delivers patient-focused care to all ages. Our board-certified physicians are committed to educating the patient and caregiver, improving quality of life, and maintaining our high standards of expertise and care. We help patients breathe better and, ultimately, live better by effectively treating patients with allergies and asthma.

Dr. Merritt is board certified in Allergy and Clinic Immunology and specialize in the diagnosis and treatment of adult and pediatric asthma, allergic rhinitis, drug allergies, hives and chronic sinusitis.

Our staff will take the time to listen and help in any way they can to improve your health.

Dr. Tina Merritt Allergy Doctor NWA

Tina Merritt, MD

Dr. Merritt has done research on Alpha-gal, an allergy to beef, pork, and gelatin related to tick bites, and is part of the Arkansas Alpha-gal Task Force. She is the director of White Cell Support Group, a nonprofit support group for patients with primary immune deficiency. Dr. Merritt is a noted speaker for asthma, allergy and immune deficiency. She participates in the Food Allergy Research and Education Walk every year and the National Asthma Screening for the past 16 years.

Heather Sams Allergy & Asthma Clinic of NWA

Heather Sams, PA-C

Heather Sams, PA-C is a licensed and certified Physician Assistant. Heather has been practicing in allergy & asthma for 5 years. She is a graduate of the University of Oklahoma, with a Master’s Degree in Allied Health, Physician Assistant. Heather practiced in Internal Medicine and Family Practice for 8 years before Joining the Allergy & Asthma Clinic of NWA. She is involved with the Arkansas Academy of Physician Assistants, serving as president of the academy and organizing yearly continuing eduation conference for the state.
Dr. Merritt always is very thorough and addresses all our questions and concerns! She comforts Lucas when he feels sick and gets him on the track to getting well! She was the first Specialist we seen when we moved here from Oklahoma and she got the right test ordered and we got a correct diagnosis and treatment plan ! I am thankful she has been here for us through this journey!
Angela Wright-Clark