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Michael A. Kohanski, MD, PhD

Michael A. Kohanski, MD, PhD Physician

Assistant Professor of Otorhinolaryngology: Head and Neck Surgery at the Hospital of the University of Pennsylvania

Dr. Kohanski is employed by Penn Medicine.

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Clinical Specialties


  • Otorhinolaryngology

Programs & Centers:

Board Certification:

  • Otolaryngology, 2017

Clinical Expertise:

  • Adenoidectomy
  • Adenoiditis
  • Allergic Fungal Sinusitis
  • Allergic Rhinitis
  • Allergic Rhinosinusitis
  • Allergies
  • Anterior Nasal Drip
  • Aspirin Exacerbated Respiratory Disease
  • Broken Nose (Nose Fracture)
  • Cancer of the Nasal Cavity
  • Cerebrospinal Fluid Leak from Nose
  • Choanal Atresia
  • Chronic Rhinosinusitis
  • Chronic Sinus Infection
  • Chronic Tonsillitis
  • CSF Leak Repair
  • Dacryocystorhinostomy
  • Deviated Septum
  • Empty Nose Syndrome
  • Enlarged Adenoids
  • Ethmoidectomy
  • History of Pituitary Mass
  • Inverted Papilloma
  • Maxillectomy
  • Nasal Cancer
  • Nasal Cavity and Paranasal Sinus Cancer
  • Nasal Congestion
  • Nasal Crusting
  • Nasal Drainage
  • Nasal Dryness
  • Nasal Obstruction
  • Nasal Polyps
  • Nasal Trauma
  • Nasoseptal Reconstruction
  • Nose Bleed
  • Osteoma
  • Paranasal Surgery
  • Post-Nasal Drip
  • Problems with Smell and Taste
  • Rhinitis
  • Rhinorrhea
  • Septal Perforation
  • Sinonasal Carcinoma
  • Sinonasal Mucocele
  • Sinonasal Papilloma
  • Sinus Disorders
  • Sinus Infections (Sinusitis)
  • Sinus Mass
  • Sinus Polyp
  • Sinus Pressure
  • Sinus Surgery
  • Smell Disorders
  • Sphenoidectomy
  • Sphenoidotomy
  • Tonsil Removal Surgery (Tonsillectomy)
  • Transnasal Repair CSF Leak
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Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Boston University School of Medicine
Residency: Johns Hopkins Hospital


American Academy of Otolaryngic Allergy, National American Academy of Otolaryngology-Head and Neck Society, National American Rhinologic Society, National Pennsylvania Medical Society, Local

Hospital Affiliation

Dr. Kohanski is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.


Description of Research Expertise:

Dr. Kohanski’s research focuses include understanding the role of inflammatory signals in the development of sinus polyps, with a focus on rare upper respiratory epithelial cells, solitary chemosensory cells, as a source of inflammation. From his Ph.D. work on antibiotic mechanisms of action and the development of antibiotic resistance, Dr. Kohanski also has an interest in understanding the evolution of antibiotic resistance as it pertains to the use of antibiotics in the treatment of chronic rhinosinusitis. Dr. Kohanski is an author/co-author on 29 peer reviewed scientific articles.

Selected Publications:

Maina IW, Tong CCL, Baranov E, Patel NN, Triantafillou V, Kuan EC, Kohanski MA, Papagiannopoulos P, Yan CH, Workman AD, Lambert JL, Cohen NA, Kennedy DW, Adappa ND, Feldman MD, Palmer JN.: Clinical Implications of Carcinoma In Situ in Sinonasal Inverted Papilloma. Otolaryngol Head Neck Surg. : Epub Ahead of print,2019.

Crosby DL, Jones J, Palmer JN, Cohen NA, Kohanski MA, Adappa ND: Impact of age on outcomes following endoscopic sinus surgery for chronic rhinosinusitis. Int Forum Allergy Rhinol. : 2019.

Tong CCL, Patel NN, Maina IW, Triantafillou V, Yan CH, Kuan EC, Kohanski MA, Papagiannopoulos P, Workman AD, Cohen NA, Kennedy DW, Adappa ND, Palmer JN.: Inverted papilloma with multifocal attachment is associated with increased recurrence. Int Forum Allergy Rhinol. 9 (8): 865-869,2019.

Triantafillou V, Maina IW, Kuan EC, Kohanski MA, Tong CC, Patel NN, Carey RM, Workman AD, Palmer JN, Adappa ND, Brant JA: Sinonasal mucoepidermoid carcinoma: a review of the National Cancer Database. Int Forum Allergy Rhinol : Epub Ahead of print,2019.

Patel NN, Triantafillou V, Maina IW, Workman AD, Tong CCL, Kuan EC, Papagiannopoulos P, Bosso JV, Adappa ND, Palmer JN, Kohanski MA, Herbert DR, Cohen NA.: Fungal extracts stimulate solitary chemosensory cell expansion in noninvasive fungal rhinosinusitis. Int Forum Allergy Rhinol. 9 (7): 730-737,2019.

Kuan EC, Rereddy SK, Patel NN, Maina IW, Triantafillou V, Kohanski MA, Tong CCL, Nabavizadeh SA, Lee JYK, Grady MS, O'Malley BW Jr, Palmer JN, Adappa ND: Asymptomatic radiographic sinonasal inflammation does not affect pituitary surgery outcomes. Laryngoscope : 129(7):1545-154,2019.

Kohanski MA,Reh DD: Inverted Papilloma Book Chapter in Paparella's Otolaryngology : Head and Neck Surgery : 2019.

Kuan EC, Kaufman AC, Lerner D, Kohanski MA, Tong CCL, Tajudeen BA, Parasher AK, Lee JYK, Storm PB, Palmer JN, Adappa ND: Lack of Sphenoid Pneumatization Does Not Affect Endoscopic Endonasal Pediatric Skull Base Surgery Outcomes. Laryngoscope 129 (4): 832-836,2019.

Trope M, Triantafillou V, Kohanski MA, Kuan EC, Tong CCL, Patel NN, Maina IW, Carey RM, Workman AD, Palmer JN, Adappa ND, Newman JG, Brant JA.: Adenoid cystic carcinoma of the sinonasal tract: a review of the national cancer database. Int Forum Allergy Rhinol. 9 (4): 427-434,2019.

Kuan EC, Trent MS, Luu NN, Kohanski MA, Tong CC, O'Malley BW Jr, Adappa ND, Palmer JN.: Preventing Restenosis of Marsupialized Rathke Cleft Cysts Using a Nasoseptal Flap Lining. Laryngoscope : 2019.

Academic Contact Info

3400 Spruce St, 5 Ravdin
Department of Otorhinolaryngology: Head and Neck Surgery

Philadelphia, PA 19104
Phone: (215) 349-5766
Patient appointments: 800-789-7366 (PENN)