MaryLand Allergy & Asthma Center

Setting Standard for Service,
Quality and Compassion

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About Us

We dedicate ourselves to the following principles, standards, and qualities that we consider essential to the pursuit of our mission and we hold each other accountable for the behaviors that embody these values. We provide patients with superb allergy and Asthma Care in a comfortable and luxurious environment. Our dedicated staff has extensive experience in caring for patients with asthma, allergies, hay fever, sinus infections, hives, atopic dermatitis, eczema, contact dermatitis, angioedema, anaphylaxis, food, drug and latex allergies as well as immunodeficiency diseases. We are a friendly team that aims to provide high quality care to all of our patients.

  • Teamwork:Each do your part, work together towards the efficiency and effectiveness of the whole (never saying, "It's not my job.").
  • Integrity:Firmly adhere to a code of ethical values that encompass trust, honesty, confidentiality and reliability.
  • Initiative:Display energy or aptitude in beginning action; self-starting.
  • Selflessness:Consider others before oneself...share responsibilities for all departmental activities.
  • Diligence:Pay continuous attention to the responsibilities of the job.
  • Mutual Respect:Show high regard for each other and the value each individual brings to the organization.
  • Dependability:Be reliable and trustworthy.
  • Optimism:View activities and events in the most positive way, anticipate and contribute to the best possible outcome.
  • Enthusiasm:Exhibit positive energy.
  • Caring:Caring: show sensitivity and responsiveness to the needs of patients and colleagues, and be courteous to others.
  • Creativity:Creativity: think and act without constraint to accomplish our mission.
  • Cleanliness and Organization:Cleanliness and Organization: contribute to a clean, organized and safe environment.

Our Staff

Raymond O. Nwadiuko MD., FACAAI


Dr. Nwadiuko completed his residency at Howard University Hospital in Internal Medicine. He then completed two years of fellowship in Allergy and Immunology at the Harbor- UCLA Medical Center in Torrance California. He joined Howard University Hospital in 1996 as clinical assitant professor of Medicine, Allergy and Immunology and District of Columbia General Hosipital as Attending Physician. In 2002 he left to establish his private practice-Maryland Allergy and Asthma Center. Dr. Nwadiuko is board certified in Allergy and Immunology and a fellow of the American College of Asthma, Allergy and Immunology(ACAAI).

Theodore Ebere Igwebe MD., FCCP


Dr. Igwebe is a Pulmonary/Asthma - Critical Care Specialist, he completed his residency and two year fellowship at University of Medicine of New Jersey. He joined Holy Cross Hospital in Silver Spring, Maryland and is now part of the private practice - Maryland Allergy and Asthma Center.

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I am really happy with the way the professional team of doctors addressed my symptoms. I was suffering from this allergy for the last 7 years and consulted many doctors but none can compare to the MDAAC doctors. My allergy problem is cured now and I am functioning regularly without any difficulty.

Elliott Moon Lanham