Gregory Allen, MD
Associate Professor, Otolaryngology - Head and Neck Surgery

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Medical School:
  • MD, University of Arkansas for Medical Sciences College of Medicine (1990)
Undergraduate School:
  • BA, University of Arkansas (AR) (1986)
Internship:
  • West Virginia University Program (1991)
Residency:
  • West Virginia University Program, Chief Resident, Otolaryngology - Head & Neck Surgery (1995)
Fellowships:
  • University of Pittsburgh Medical Center/Children's Hospital of Pittsburgh, Pediatric Otolaryngology (1997)
Languages: English
Department: Otolaryngology - Head and Neck Surgery

Professional Titles

  • Medical Director, Cleft Lip and Palate Team

Research Interests

Craniofacial genetics, craniofacial treatment options

Teaching

  • Associate Professor (1997)
    School of Medicine, Otolaryngology - Head and Neck Surgery
    Pediatric Otolaryngology
  • Associate Professor (1997)
    School of Medicine, Pediatrics

Publications

  • Fayoux P, Daniel SJ, Allen G, Balakrishnan K, Boudewyns A, Cheng A, De Alarcon A, Goel D, Hart CK, Leboulanger N, Lee G, Moreddu E, Muntz H, Rahbar R, Nicollas R, Rogers-Vizena CR, Russell J, Rutter MJ, Smith RJH, Wyatt M, Zalzal G, Resnick CM. International Pediatric ORL Group (IPOG) Robin Sequence consensus recommendations. Int J Pediatr Otorhinolaryngol. 2020 Mar;130:109855. PubMed PMID: 31896499
  • Puricelli MD, Rahbar R, Allen GC, Balakrishnan K, Brigger MT, Daniel SJ, Fayoux P, Goudy S, Hewitt R, Hsu WC, Ida JB, Johnson R, Leboulanger N, Rickert SM, Roy S, Russell J, Rutter M, Sidell D, Soma M, Thierry B, Trozzi M, Zalzal G, Zdanski CJ, Smith RJH. International Pediatric Otolaryngology Group (IPOG): Consensus recommendations on the prenatal and perinatal management of anticipated airway obstruction. Int J Pediatr Otorhinolaryngol. 2020 Nov;138:110281. PubMed PMID: 32891939
  • Klassen AF, Dalton L, Goodacre TEE, Harman KE, Slator R, Tsangaris E, Courtemanche DJ, Goldstein J, Allen GC, Mahony AO, Riff KWYW. Impact of Completing CLEFT-Q Scales That Ask About Appearance on Children and Young Adults: An International Study. Cleft Palate Craniofac J. 2020 Jul;57(7):840-848. PubMed PMID: 32048868
  • 28. Andrews M, Allen G, Alexander A, French B, Wilkinson C, Mason A. Evolution of a Virtual Multidisciplinary Cleft and Craniofacial Team Clinic During the COVID-19 Pandemic: Children’s Hospital Colorado Experience. Cleft Palate-Craniofacial Journal. Accepted for publication, Aug 31, 2020.
  • Wong Riff KWY, Tsangaris E, Forrest CR, Goodacre T, Longmire NM, Allen G, Courtemanche DJ, Goldstein J, O'Mahony A, Pusic AL, Slator R, Swan MC, Thoma A, Vargas F, Klassen AF. CLEFT-Q: Detecting Differences in Outcomes among 2434 Patients with Varying Cleft Types. Plast Reconstr Surg. 2019 Jul;144(1):78e-88e. PubMed PMID: 31246826
  • Hansen R, Shirtcliff RM, Ludwig S, Dysert J, Allen G, Milgrom P. Changes in Silver Diamine Fluoride Use and Dental Care Costs: A Longitudinal Study. Pediatr Dent. 2019 Jan 15;41(1):35-44. PubMed PMID: 30803475
  • Chan KH, Allen GC, Kelley PE, Streubel SO, Friedman NR, Yoon P, Gao D, Ruiz AG, Jung TTK. Dornase Alfa Ototoxic Effects in Animals and Efficacy in the Treatment of Clogged Tympanostomy Tubes in Children: A Preclinical Study and a Randomized Clinical Trial. JAMA Otolaryngol Head Neck Surg. 2018 Sep 1;144(9):776-780. PubMed PMID: 30073253
  • Klassen AF, Riff KWW, Longmire NM, Albert A, Allen GC, Aydin MA, Baker SB, Cano SJ, Chan AJ, Courtemanche DJ, Dreise MM, Goldstein JA, Goodacre TEE, Harman KE, Munill M, Mahony AO, Aguilera MP, Peterson P, Pusic AL, Slator R, Stiernman M, Tsangaris E, Tholpady SS, Vargas F, Forrest CR. Psychometric findings and normative values for the CLEFT-Q based on 2434 children and young adult patients with cleft lip and/or palate from 12 countries. CMAJ. 2018 Apr 16;190(15):E455-E462. PubMed PMID: 29661814
  • Chan KH, Allen GC, Kelley PE, Streubel SO, Friedman NR, Yoon P, Gao D, Ruiz AG, Jung TTK. Dornase Alfa Ototoxic Effects in Animals and Efficacy in the Treatment of Clogged Tympanostomy Tubes in Children: A Preclinical Study and a Randomized Clinical Trial. JAMA Otolaryngol Head Neck Surg. 2018 Sep 1;144(9):776-780. PubMed PMID: 30073253
  • Klassen AF, Riff KWW, Longmire NM, Albert A, Allen GC, Aydin MA, Baker SB, Cano SJ, Chan AJ, Courtemanche DJ, Dreise MM, Goldstein JA, Goodacre TEE, Harman KE, Munill M, Mahony AO, Aguilera MP, Peterson P, Pusic AL, Slator R, Stiernman M, Tsangaris E, Tholpady SS, Vargas F, Forrest CR. Psychometric findings and normative values for the CLEFT-Q based on 2434 children and young adult patients with cleft lip and/or palate from 12 countries. CMAJ. 2018 Apr 16;190(15):E455-E462. PubMed PMID: 29661814
  • Longmire NM, Wong Riff KWY, O'Hara JL, Aggarwala S, Allen GC, Bulstrode NW, Forrest CR, French BM, Goodacre TEE, Marucci D, Norris JH, Panchapakesan V, Piplani B, Pusic AL, Vercruysse HJ, Klassen AF. Development of a New Module of the FACE-Q for Children and Young Adults with Diverse Conditions Associated with Visible and/or Functional Facial Differences. Facial Plast Surg. 2017 Oct;33(5):499-508. PubMed PMID: 28962056
  • Chan KH, Gao D, Jensen EL, Allen GC, Cass SP. Complications and parent satisfaction in pediatric osseointegrated bone-conduction hearing implants. Laryngoscope. 2017 Sep;127(9):2165-2170. PubMed PMID: 28092097
  • Green KK, Barham HP, Allen GC, Chan KH. Prognostic Factors in the Outcome of Invasive Fungal Sinusitis in a Pediatric Population. Pediatr Infect Dis J. 2016 Apr;35(4):384-6. PubMed PMID: 26673979
  • Davies BW, Gonzalez MO, Vaughn RC, Allen GC, Durairaj VD. Dacryocystitis As the Initial Presentation of Invasive Fungal Sinusitis in Immunocompromised Children. Ophthal Plast Reconstr Surg. 2016 Jul-Aug;32(4):e79-81. PubMed PMID: 25126772
  • Wudel J, Valdez S, Perkins JN, Liang C, Blanchard A, Allen GC. Parent, dentist, and orthodontist satisfaction following alveolar cleft repair using recombinant human bone morphogenic protein. Cleft Palate Craniofac J. 2015 May;52(3):e41-6. PubMed PMID: 25531735
  • Davies BW, Gonzalez MO, Vaughn RC, Allen GC, Durairaj VD. Dacryocystitis As the Initial Presentation of Invasive Fungal Sinusitis in Immunocompromised Children. Ophthal Plast Reconstr Surg. 2014 Aug 14. [Epub ahead of print] PubMed PMID: 25126772
  • Chan KH, Liang C, Wilson P, Higgins D, Allen GC. Long-term safety and efficacy data on botulinum toxin type A: an injection for sialorrhea. JAMA Otolaryngol Head Neck Surg. 2013 Feb;139(2):134-8. PubMed PMID: 23429943
View All (17 Total) View Less

Professional Memberships

  • American Academy of Otolaryngology - Head & Neck Surgery, Member
  • American College of Surgeons (ACS), Fellow
  • American Academy of Pediatrics (AAP), Fellow
  • American Society of Pediatric Otolaryngology, Member
  • American Medical Association, Member
  • American Cleft Palate Craniofacial Association, Member
  • Christian Medical Dental Association, Member

Practice Locations

Children's Hospital Colorado Anschutz Medical Campus
13123 East 16th Ave
Aurora, CO 80045
720-777-1234

Children's Hospital Colorado North Campus
469 State Highway 7
Broomfield, CO 80023
720-478-5000

Hospital Affiliation
  • Children's Hospital Colorado
  • University of Colorado Hospital
Center Affiliations

Specialty Information

Specialties
  • Otolaryngology - Head & Neck Surgery, Board Certification (1996)
  • Pediatric Otolaryngology
  • Pediatric Otolaryngology, Certificate (1997)
  • American Board of Otolaryngology - Head & Neck Surgery, Board Certification (1996)
Conditions & Treatments
  • Bones, Joints and Muscles
  • Brain and Nervous System
  • Brain and Nervous System - Sleep Apnea
  • Cancers
  • Digestive System
  • Ear, Nose, and Throat (ENT)
  • Endocrine System (Hormones)
  • Immune System
  • Infections
  • Injuries and Wounds
  • Lungs and Breathing
  • Pregnancy and Reproduction
  • Pregnancy and Reproduction - Prenatal Care
  • Symptoms and Manifestations
  • Symptoms and Manifestations - Breathing Problems
  • Symptoms and Manifestations - Cough
  • Symptoms and Manifestations - Dizziness and Vertigo
  • Immune System - Rhinitis
  • Immune System - Sinusitis
  • Endocrine System (Hormones) - Thyroid Disease
  • Endocrine System (Hormones) - Thyroid Cancer
  • Ear, Nose, and Throat (ENT) - Hearing Loss
  • Ear, Nose, and Throat (ENT) - Facial Plastics and Cosmetics
  • Ear, Nose, and Throat (ENT) - Head and Neck Tumors
  • Ear, Nose, and Throat (ENT) - Hoarseness
  • Ear, Nose, and Throat (ENT) - Vocal Cord Paralysis
  • Ear, Nose, and Throat (ENT) - Tonsillitis
  • Ear, Nose, and Throat (ENT) - Snoring
  • Ear, Nose, and Throat (ENT) - Dysphagia (Trouble Swallowing)
  • Ear, Nose, and Throat (ENT) - Tinnitus
  • Ear, Nose, and Throat (ENT) - Ear Infection
  • Ear, Nose, and Throat (ENT) - Eardrum Perforation
  • Ear, Nose, and Throat (ENT) - Facial Paralysis
  • Digestive System - Surgical Endoscopy
  • Surgery
  • Cancers - Head and Neck Cancer
  • Infections - Bacterial Infections
  • Infections - Fungal Infections
  • Infections - Viral Infections
  • Surgery - Plastic, Reconstructive and Aesthetic Surgery
  • Ear, Nose, and Throat (ENT) - Sinus Tumors
  • Ear, Nose, and Throat (ENT) - Nasal Polyps
  • Ear, Nose, and Throat (ENT) - Salivary Gland Diseases/Stones
  • Surgery - Cleft Lip and Palate
  • Bones, Joints and Muscles - Facial Fractures
  • Surgery - Orthognathic Surgery (Corrective Jaw Surgery)
  • Surgery - Cranio-Maxillofacial Surgery
  • Lungs and Breathing - Chronic Mechanical Ventilation
  • Lungs and Breathing - Tracheostomy Dependence
Clinical Interests
Pediatric Otolaryngology, Cleft Lip and Palate, Syndromes involving the head and neck, craniofacial anomalies, otitis media, ear disease, airway abnormalities, airway reconstruction, head and neck tumors, nasal and sinus disease

Care Philosophy
Comprehensive and conservative care. Medical care to avoid surgery when possible. Judicious use of surgery when necessary. Team care for complex disorders and problems.

Personal Interests
Family, music, computers, biking, camping

Volunteer Activities
Medical missions in South America

General Information

Medical Schools:
  • MD, University of Arkansas for Medical Sciences College of Medicine (1990)
Undergraduate Schools:
  • BA, University of Arkansas (AR) (1986)
Internships:
  • West Virginia University Program (1991)
Residency Programs:
  • West Virginia University Program, Chief Resident, Otolaryngology - Head & Neck Surgery (1995)
Fellowships:
  • University of Pittsburgh Medical Center/Children's Hospital of Pittsburgh, Pediatric Otolaryngology (1997)
Languages: English
Department: Otolaryngology - Head and Neck Surgery
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