About Rebecca Saff, MD, PhD

Rebecca Saff, MD, PhD is the Allergy/Immunology Fellowship Director and an Assistant Physician at Massachusetts General Hospital and an Instructor in Medicine at Harvard Medical School.  She earned her MD and PhD in Immunology from Boston University School of Medicine  and went on to complete her residency in Internal Medicine and Fellowship in Allergy/Immunology at MGH.  She has worked in medical education at various levels, including as the Subspecialty Education director for Allergy/Immunology and now as Fellowship Director.  She serves as the co-chair for the Chrysalis Program through the American Academy of Allergy, Asthma, and Immunology, which provides medical students and residents an opportunity to explore A/I.  In addition, she is involved in drug allergy research, particularly looking at the epidemiology of drug allergy, and has an interest in physician wellness, serving on the advisory board for the Center for Physician Well-Being.


Departments, Centers, & Programs:

Clinical Interests:



Allergy Associates
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-726-3850
Fax: 617-724-0239

MGH Waltham Allergy
52 Second Ave
Waltham, MA 02451
Phone: 781-487-3838
Fax: 781-487-3899

Medical Education

  • M.D.; Ph.D., Boston University School of Medicine
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • Allergy & Immunology, American Board of Allergy and Immunology

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


  • Saff RR, Li Y, Santhanakrishnan N,Camargo CA, Blumenthal KG, Zhou L, Banerji A. Identification of Inpatient Allergic Drug Reactions using ICD-9-CM Codes. J Allergy Clin Immunol Pract. 2019 Jan;7(1):259-264.

     Saff RR, Camargo CA, Clark S, Long AA, Banerji A. Utility of ICD-9-CM Codes for Identification of Allergic Drug Reactions.  J Allergy Clin Immunol Pract 2016 Jan-Feb;4(1):114-119.

    Guyer AC, Saff RR, Conroy M, Blumenthal KG, Camargo CA, Long AA, Banerji A. Comprehensive Allergy Evaluation is Useful in the Subsequent Care of Patients with Drug Hypersensitivity Reactions during Anesthesia.  J Allergy Clin Immunol Pract 2015 Jan-Feb;3(1):94-100.

    Saff RR, Banerji A. Management of Patients with Non-AERD Aspirin Hypersensitivity Reactions. Allergy Asthma Proc 2015 Jan-Feb;36(1):34-9.

    Iammatteo M, Blumenthal KG, Saff RR, Long AA, Banerji A. Safety and Outcomes of Test Doses for the Evaluation of Adverse Drug Reactions: A 5-Year Retrospective Review. J Allergy Clin Immunol Pract 2014 Nov-Dec;2(6):768-74

    Blumenthal KG, Saff RR, Banerji A. Evaluation and Management of a Patient with Multiple Drug Allergies. Allergy Asthma Proc2014;35(3):197-203.