Landon J. Massoth, M.D.

Landon J. Massoth



Endoscopic Skull Base Surgery
Otolaryngic Allergy

Dr. Massoth is a board-certified otolaryngologist who joined the Eastern Oklahoma Ear, Nose & Throat practice in 2020. He is the only fellowship-trained rhinology and endoscopic skull base surgeon in the Tulsa area. He strives to provide accessibility to the highest level of sinus and nasal care for all patients throughout northeastern Oklahoma. His clinical practice focuses on the treatment of both pediatric and adult disorders of the nose, sinuses, orbit and skull base. He has expertise in both the medical and surgical treatment of inflammatory diseases of the nose and sinuses, nasal obstruction, sinonasal tumors, cerebral spinal fluid (CSF) leaks, disorders of the tear duct system and orbit and disorders affecting the skull base. 

Dr. Massoth provides compassionate and evidence-based rhinology care to Oklahomans. He sees it as an incredible privilege to be able to partner with patients to improve their symptoms and quality of life in a way that aligns with their individual values and preferences. He also provides exceptional care to his patients through a team-based approach. He collaborates with neurosurgeons, oculoplastic surgeons, allergists and rheumatologists to provide a multidisciplinary approach tailored to an individual’s complex problems involving the nose, sinuses, orbit or skull base. He works closely with these highly skilled physicians to provide comprehensive and coordinated rhinology care.

What Are Some of the Conditions Dr. Massoth Treats?
  • Recurrent & Chronic Sinusitis
  • Fungal Sinus Infections (Fungal Sinusitis)
  • Nasal Polyps
  • Deviated Septum
  • Blocked Nasal Passage (Nose obstruction)
  • Chronic runny nose or post nasal drip
  • Nosebleeds (Epistaxis)
  • Sinusitis and Asthma
  • Aspirin Exacerbated Respiratory Disease (AERD)
  • Hereditary Hemorrhagic Telangiectasia (HHT)
  • Cystic Fibrosis related Sinus Disease
  • Cerebrospinal Fluid Leaks (CSF Rhinorrhea)
  • Tumors of the Nose and Sinuses
  • Skull Base Tumors
  • Smell disorders (Anosmia & Hyposmia)
  • Blocked Tear Duct Passages (Epiphora)
  • Thyroid Eye Disease (Grave’s related eye disease)
  • Septal perforation
What Are Some of the Surgeries Dr. Massoth Performs?
  • Image-guided endoscopic sinus surgery
  • Revision endoscopic sinus surgery
  • Endoscopic CSF leak repair
  • Endoscopic transsphenoidal pituitary surgery
  • Endoscopic approach and resection of anterior skull base tumors
  • Endoscopic dacrocystorhinostomy
  • Endoscopic orbital decompression
  • Eustachian tube balloon dilation
  • Balloon sinuplasty
  • Septoplasty
  • Inferior turbinate reduction
  • Steroid Releasing Sinus Implant (Sinuva & Propel Implants)
  • Clarifix (cyroablation for chronic rhinorrhea)
Undergraduate Degree

University of Tulsa, Bachelor of Science in Biochemistry & Bachelor of Arts in French, 2010

Medical Degree

University of Oklahoma College of Medicine, 2014


University of Oklahoma Health Sciences Center, Otolaryngology-Head and Neck Surgery,
Oklahoma City, OK, 2019


University of Washington Medical Center, Fellowship in Neurorhinology & Advanced Rhinology, Seattle, WA, 2020

Professional Society Memberships
  • American Rhinologic Society
  • North America Skull Base Society
  • American Academy of Otolaryngology – Head & Neck Surgery
  • Alpha Omega Alpha Honor Society
  • Gold Humanism Honor Society
Certifications and/or Affiliations
  • Affiliated with Tulsa Spine & Specialty Hospital and Saint Francis Health System.
  • Board Certification – Otolaryngology, 2021, American Board of Otolaryngology

Asthma and Chronic Rhinosinusitis: Diagnosis and Medical Management

Community/Organization Involvement
  • Clinical Faculty, Oklahoma State University and University of Oklahoma Residency Programs
  • Volunteer Faculty, OU/TU School of Community Medicine Student Academy