About Ashok Muniappan, MD

Dr. Muniappan’s clinical activity includes all areas within general thoracic surgery, and he is experienced in caring for lung, airway, chest wall, mediastinal, diaphragmatic, and esophageal disorders. He is well versed in minimally invasive techniques and utilizes them whenever appropriate.

He has a special interest in pulmonary metastasectomy, airway surgery, chest wall resection, repair of tracheoesophageal fistula, and minimally invasive repair of pectus excavatum. 

He lived in India, Canada, and Nigeria, before his family settled in San Jose, California. He attended Jesuit high school there and subsequently the University of California, Berkeley, where he majored in Molecular and Cell Biology with an emphasis in Immunology. Dr. Muniappan graduated from Tufts University School of Medicine in 2000.

He completed residencies in General Surgery (2007) and Cardiothoracic Surgery (2009) at Massachusetts General Hospital (MGH). He also completed a post-doctoral fellowship at the MGH Transplantation Biology Research Center (2005) and mini-fellowships in clinical thoracic surgery at Mayo Clinic and University of Pittsburgh Medical Center before joining the faculty of MGH Division of Thoracic Surgery in 2010. 

He serves as the director of the medical student summer scholars program in thoracic surgery, director of general thoracic surgery simulation, and co-leads the thoracic nodule ablation clinic at MGH. He is dedicated to the education of medical students and surgical residents. He received the MGH Department of Surgery faculty teaching award in 2019.

His research interests have focused on the management of complex general thoracic surgical problems such as tracheoesophageal fistula and he frequently collaborates on clinical research with colleagues in related specialties.

Clinical Interests:



Mass General Surgery: Thoracic Surgery
55 Fruit St.
Boston, MA 02114
Phone: 617-726-2100

Mass General Cancer Center at Emerson Hospital
131 Old Rd. To Nine Acre Corner
John Cuming Building
Concord, MA 01742
Phone: 978-287-8058
Fax: 978-287-2982

Medical Education

  • MD, Tufts University School of Medicine
  • Residency, Massachusetts General Hospital
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital

American Board Certifications

  • Surgery, American Board of Surgery
  • Thoracic and Cardiac Surgery, American Board of Thoracic Surgery

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.


  • Recent Publications:


    1: Shih AR, Nitiwarangkul C, Little BP, Roop BW, Nandy S, Szabari MV, Mercaldo
    N, Mercaldo S, Montesi SB, Muniappan A, Berigei SR, Lynch DA, Sharma A, Hariri
    LP. Practical application and validation of the 2018 ATS/ERS/JRS/ALAT and
    Fleischner Society guidelines for the diagnosis of idiopathic pulmonary
    fibrosis. Respir Res. 2021 Apr 26;22(1):124. doi: 10.1186/s12931-021-01670-7.
    PMID: 33902572; PMCID: PMC8074481.

    2: Madariaga MLL, Soni ML, Mathisen DJ, Wright CD, Li S, Lee H, Davies D, Knoll
    S, Muniappan A, Lanuti M, Ott H, Gaissert HA. Evaluation Of Release Maneuvers
    After Airway Reconstruction. Ann Thorac Surg. 2021 Mar 6:S0003-4975(21)00453-7.
    doi: 10.1016/j.athoracsur.2021.03.001. Epub ahead of print. PMID: 33689735.

    3: Muniappan A. Commentary: Tinker, tailor, surgeon, scholar-effective surgical
    management of glotto-subglottic stenosis. J Thorac Cardiovasc Surg. 2020 Dec
    7:S0022-5223(20)33245-1. doi: 10.1016/j.jtcvs.2020.11.148. Epub ahead of print.
    PMID: 33422306.

    4: Perez NP, Baez YA, Stapleton SM, Muniappan A, Oseni TS, Goldstone RN, Chang
    DC. Racially Conscious Cancer Screening Guidelines: A Path Towards Culturally
    Competent Science. Ann Surg. 2020 May 19. doi: 10.1097/SLA.0000000000003983.
    Epub ahead of print. PMID: 33064394.

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