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Hackensack Allergy & Asthma Center is the independent practice of Thomas A. Selvaggi, M.D.   Dr. Selvaggi is a board certified allergist/immunologist, having received board certification by the American Board of Allergy and Immunology in 1995 and re-certified in 2005 and 2015.  Dr. Selvaggi's Maintenance of Certification is current. Although the practice is restricted to the practice of allergy, asthma and immunology, Dr. Selvaggi is also board certified in internal medicine originally in 1992 with re-certifications in  2002 and again in 2012.  Dr. Selvaggi has also received Added Qualification in Clinical Laboratory Immunology in 2003, the last year the certification was offered by the American Board of Internal Medicine. 

The Hackensack Allergy & Asthma Center was formed in 2004 to give a more personalized approach to the delivery of allergy care.  The Center serves patients from all areas of New Jersey as well as many surrounding states.  Dr. Selvaggi has been serving the residents of Hackensack and the surrounding area since 1997, after completing a fellowship at the National Institutes of Health.  He is on staff at Hackensack University Medical Center and is the medical director of its Special Diagnostic Immunology Laboratory.  Dr. Selvaggi is a Clinical Assistant Professor of Medicine at Rutgers University and hosts residents in his office to teach the next generation.

The practice is conveniently located in the county seat of Bergen County and is accessible easily by Route 17, Route 46, Route 4 and Route 80.  There is one central office only and the staff is dedicated to all aspects of allergy/immunology at that one location. In an attempt to maintain personalized care, the practice is independent which means that it is not part of a large multispecialty group, hospital system or a large national organization such as allergy partners.  As such, you and your insurance will not be charged "facility fees" which can markedly increase the cost of your care elsewhere.  And, your appointment will be with Dr. Selvaggi.

The Hackensack Allergy & Asthma Center is one of very few allergy offices in the state of New Jersey that performs FeNO testing which is a simple 10 second test measuring levels of exhaled nitric oxide that helps determine the presence of allergic inflammation in the lungs to assist in both the diagnosis and treatment of asthma.   This cutting edge testing is not even available at most major hospitals.

Hackensack Allergy & Asthma Center has been an early adopter of the electronic medical record, meeting all Medicare incentives since 2009. In 2017, we proudly announce a collaboration with WellSheet, a start-up company that employs ONC-recognized proprientary software to assist the physician in organizing important data in your chart to highlight trends an daloo rapid access to key aspect of your health information. 

Dr. Selvaggi sees patients of all ages.  

***NEW:  Egg-free Flu vaccine now available!  Flublok FDA approved for ages 18 and above.***




Tests offered:                                                  
  • Skin Tests:  (Environmental;  Foods; Penicillin)
  • Patch Tests: (General; Cosmetic; Metal)
  • Lung Tests: (Spirometry; Bronchospastic Evaluation; FeNO)
Procedures offered:
  • Desensitization (Environmental [pollens, pets, dust mite]; Rapid desensitizations; Medications)
  • Oral Challenges  (Food, Medication)
  • Immune Infusions (Intravenous Immunoglobulin [IVIG] for immune reconstitution and neurologic therapies)


Office Hours: 

  • Monday: 12pm-6pm
  • Tuesday:  no office hours; calls received from 9am-4pm 
  • Wednesday: 9am-4:30pm
  • Thursday:  2pm-7pm 
  • Friday: 9pm-12  

If you have any questions please see the tabs on the top of the website or contact us.