Adult and Pediatric Allergy, Asthma, and Clinical Immunology


Suite 380      Gateway Towers      320 Ft. Duquesne Blvd.      Pittsburgh, PA  15222


At Point State Park

(412) 471-3818

Fax: (412) 471-3657


   Mayer Green, M.D., Founder                                                                                               Suburban Office:

   Richard L. Green, M.D.                                                                                                          One Alexander Center

   Andrew G. Vayonis, M.D.                                                                                                      2585 Freeport Road

   Thomas L. Mertz, D.O., PharmD.                                                                                         Suite 210

                                                                                                                                                   Pittsburgh, PA 15238

   Diplomats:                                                                                                                              Phone: (412) 828-3800

   American Board of Internal Medicine                                                                                 Fax: (412) 828-8561

   American Board of Allergy and Clinical Immunology





  • Please arrive 15 to 30 minutes prior to scheduled visit


  • Patients receiving allergy injections must wait in the office for a 20 to 30 minute observation period after every injection in case of an adverse reaction


  • Have any paperwork completed prior to arrival and bring updated insurance information


  • If you need to cancel or reschedule your appointment, please contact the office at least 24 hours prior to your appointment.


  • A parent or legal guardian must accompany children under age 18.  It is suggested that children who are not patients not attend the appointment due to the length of the appointment.


  • As a courtesy to other allergic patients, we ask that you refrain from wearing strong perfumes or colognes at the time of your visit.


  • As a courtesy to the patients in the waiting area and our staff, please refrain from cell phone use.