Breathe Easy

Central Mass Allergy

Central Mass Allergy & Asthma Care physicians specialize in the diagnosis and treatment of allergies, asthma and related conditions.

Our experienced physicians are committed to providing the highest quality allergy and asthma care for children and adults.  Our doctors are board certified by the American Board of Allergy & Clinical Immunology or Board Eligible as well as the American Board of Internal Medicine which means our patients receive the best standard of care possible in their specialty. Our well-trained staff members look forward to offering their careful attention to you and your family with a smile. Our Worcester location is easily accessible with free, validated parking. Give us a call or talk with your primary care physician to find out if you could benefit from our services. We want you to breathe easier!

Please read this important message from N. Alan Harris, M.D., John S. Sullivan, M.D. and Lawrence G. Pincus, M.D.: 

Dear Patients, Families, Friends and Colleagues,

We are pleased to confirm that our practice, Central Mass Allergy & Asthma Care, has been transferred to Dr. Thomas B. Edwards of Berkshire Allergy Care.

It has been our very great pleasure providing for your allergy and asthma needs over the past 32 years and getting to know so many of you! We are confident that Dr. Edwards’ group will continue to provide the same high quality care for you and your family in the years ahead. Changes in summary:
  • Lawrence G. Pincus, M.D. has retired effective July 2016. N. Alan Harris, M.D. and John S. Sullivan, M.D. are also announcing their plans to retire.
  • Dr. Thomas B. Edwards will take over and continue the practice. Dr. Edwards is a former Chief of Allergy at Albany Medical College and currently a Clinical Associate Professor of Medicine in the AMC Allergy and Immunology Fellowship Training Program. He is a Fellow of the American Academy of Allergy, Asthma and Immunology, of the American College of Allergy, Asthma and Immunology and also of the American College of Physicians. He is board certified, and twice re-certified, in Allergy and Clinical Immunology. Dr. Edwards has resided in Westborough, MA for eighteen years and has over twenty-four years of experience providing allergy and asthma care to patients of all ages. He has a working fluency in Spanish.
  • Dr. Edwards is joined by Zhenhong Li, M.D., Ph.D. Dr. Li is board certified in Allergy and Clinical Immunology and is fluent in Chinese. She completed her allergy fellowship at Albany Medical College. Dr. Li resides with her family in Southborough, MA.
  • Office visit and injection hours are now offered Monday through Friday, including sick call visits for patients of all ages.
Central Mass Allergy & Asthma Care can continue to be reached at the same address and telephone numbers. Dr. Edwards may also be reached directly at (508) 344-9780.

We have greatly valued our relationship with you and thank you for your loyalty and friendship over the years. Best wishes for your future health!

N. Alan Harris, M.D,  John S. Sullivan, M.D.,  Lawrence G. Pincus, M.D.


  • Check out his article from The Berkshire Eagle interviewing our own Dr. Edwards at,508874
  • Starting, July 26th, we will be open in the morning on Wednesdays!  You can schedule appointments or come in for an allergy injection from 9:00-11:30 and 1:00-5:30. (We will be closed for lunch from 12-1 PM)
  • This office is closed on New Years Day, Memorial Day,  July 4th, Labor Day, Thanksgiving and Christmas.    


Mission Statement

“We at Central Mass Allergy and Asthma Care are committed to providing expert medical care to patients of all ages seeking diagnosis and treatment of allergic and asthmatic conditions. Our goal is to meet or exceed the expectations of our patients by using the knowledge and experience of our well-trained allergists supported by a skilled, pleasant and compassionate staff.”

Reasons To See An Allergist

  1. Allergy symptoms, chronic or seasonal
  2. Asthma–chronic or recurrent
  3. Bee venom allergy
  4. Food allergy
  5. Hives  or swelling
  6. Click on link for more…


Allergy Alert

How to Reach Us

We look forward to seeing you and your family member again! Please update us with changes in your mailing address, phone number, email address, primary care physician, health insurance and any medication changes.
  • 100 MLK, Jr. Blvd 2nd floor.
    Worcester, MA 01608-1209
    Across from St. Vincent Hospital
    Free validated parking for patients

  • NEW HOURS effective now!
    Mon 9:00 AM - 6:00 PM
    Tues 8:00 AM - 3:00 PM
    Wed Closed am 12:00- 6:00 PM
    Thurs 9:00 AM - 6:00 PM
    Friday: 8:00 AM - 3:00 PM

  • Telephone (508) 757-1589
    Fax (508) 756-5633