Photo of John Alan Branda, MD

John Alan Branda, MD

  • Assistant Pathologist, Massachusetts General Hospital
  • Associate Director, Microbiology Laboratory, Massachusetts General Hospital
  • Assistant Professor of Pathology, Harvard Medical School


Accepting New Patients

E-mail me Visit my website


Dr. Branda is a specialist in microbiology diagnostic testing. He directs the Clinical Clerkship in Anatomic Pathology and Laboratory Medicine program for Harvard Medical School Students.



Clinical Interests
  • Clinical Microbiology
Medical Education
  • MD, Harvard Medical School
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Clinical Pathology
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Centene/Celticare
  • Cigna (PAL #'s)
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Medicaid
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Railroad Medicare - ACD
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
Patient Age Group

Edit Profile


Dr. Branda received his MD degree from Harvard Medical School in 2000. He completed residency training in anatomic and clinical pathology at Massachusetts General Hospital, followed by a fellowship in clinical microbiology. He joined the Mass General Pathology faculty in 2004, and is currently associate director of the Microbiology Laboratories. He is director of the Clinical Clerkship in Anatomic Pathology and Laboratory Medicine program at Mass General Hospital.  His research interests include improving patient care through the development of new diagnostic testing strategies, and optimizing utilization of laboratory testing, and antimicrobial agents.  He has a special interest in diagnostic testing for tick-borne illnesses, such as borreliosis, babesiosis, anaplasmosis and tularemia.

Edit Profile

Research & Publications

Research Summary

Research interests include:

  • Development of new testing strategies, and improvement of existing diagnostic approaches in clinical microbiology
  • Special interest in the diagnosis of tick-borne infectious diseases, particularly Lyme borreliosis

For more information about research concepts, co-authors, and to see a timeline, visit Dr. Branda's profile at the Harvard Clinical and Translational Science Center.


View my most recent publications at PubMed

  1. Case records of the Massachusetts General Hospital. Case 40-2014. A 57-year-old man with inguinal pain, lymphadenopathy, and HIV infection. Gandhi RT, Alkasab TK, Nardi V, Branda JA. N Engl J Med. 2014 Dec 25;371(26):2511-20. doi: 10.1056/NEJMcpc1404518. No abstract available.
  2. Case records of the Massachusetts General Hospital. Case 36-2014. An 18-year-old woman with fever, pharyngitis, and double vision. Olson KR, Freitag SK, Johnson JM, Branda JA. N Engl J Med. 2014 Nov 20;371(21):2018-27. doi: 10.1056/NEJMcpc1310001. No abstract available.
  3. Tenosynovitis caused by a novel nontuberculous Mycobacterium species initially misidentified as a member of the Mycobacterium tuberculosis complex. Simner PJ, Hyle EP, Buckwalter SP, Branda JA, Brown-Elliott BA, Franklin J, Toney NC, de Man TJ, Wallace RJ Jr, Vasireddy R, Gandhi RT, Wengenack NL. J Clin Microbiol. 2014 Dec;52(12):4414-8. doi: 10.1128/JCM.00967-14. Epub 2014 Sep 24.

Edit Profile


Pathology Associates
55 Fruit Street
Boston MA, 02114-2696
Phone: 617-726-3611
Fax: 617-726-5957

Edit Profile

Back to Top