Norman Friedman, MD
Professor, Otolaryngology - Head and Neck Surgery

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Medical School:
  • MD, University of Texas Southwestern Medical Center at Dallas Southwestern Medical School (1990)
Residencies:
  • University of Texas Southwestern Medical School Program, Otolaryngology - Head & Neck Surgery (1996)
  • University of Texas Southwestern Medical School Program, Surgery (1992)
Fellowships:
  • University of Tennessee/LeBonheur Children's Medical Center Program, Pediatric Otolaryngology (1997)
  • Great Ormand Street Hospital for Sick Children, Pediatric Otolaryngology (1998)
Languages: English
Department: Otolaryngology - Head and Neck Surgery

Professional Titles

  • Director of the Children’s Sleep Medicine Laboratory - Children's Hospital Colorado

Recognition & Awards

  • Best Doctors in America, Best Doctors, Inc. (2008)
    Also awarded in (2007)
  • Honor Award, American Academy of Otolaryngology (2008)

Publications

  • Chan KH, Thomas BJ, Gilbert DD, Tong S, Teynor NJ, Friedman NR, Herrmann BW, Gitomer SA. Olfactory dysfunction and training in children with COVID-19 infection: A prospective study Post-COVID pediatric olfactory training. Int J Pediatr Otorhinolaryngol. 2023 Nov 23;176:111799. [Epub ahead of print] PubMed PMID: 38081110
  • Friedman NR. Adenotonsillectomy for Treatment of Mild Sleep-Disordered Breathing in Children. JAMA Otolaryngol Head Neck Surg. 2023 Dec 5. [Epub ahead of print] PubMed PMID: 38051526
  • Goff SH, Pickett-Nairne K, Nguyen T, Rove KO, Friedman NR. The Effect of Social Vulnerability on Perioperative Tonsillectomy Outcomes in Children. Laryngoscope. 2023 Nov 16. [Epub ahead of print] PubMed PMID: 37971081
  • Pham TT, Davis SM, Tong S, Campa KA, Friedman NR, Gitomer SA. High Prevalence of Obstructive Sleep-Disordered Breathing in Pediatric Patients With Turner Syndrome. Otolaryngol Head Neck Surg. 2023 Nov 8. [Epub ahead of print] PubMed PMID: 37937707
  • Chabuz CA, Lackey TG, Pickett KL, Friedman NR. Accuracy of parental perception of nighttime breathing in children with Down syndrome after adenotonsillectomy. J Clin Sleep Med. 2023 Oct 3. [Epub ahead of print] PubMed PMID: 37858282
  • Lam DJ, Friedman NR, Chan KC, Kirkham EM, Smith DF, Benedek P, Boudewyns A. Development and validation of the international pediatric sleep endoscopy scale (IPSES). Int J Pediatr Otorhinolaryngol. 2023 Nov;174:111748. PubMed PMID: 37820572
  • Kashiwazaki R, Jensen AM, Haemer M, Friedman NR. The Effects of Adenotonsillectomy for Obstructive Sleep Apnea on Growth Trajectory in Children With Obesity. Otolaryngol Head Neck Surg. 2023 Sep 5. [Epub ahead of print] PubMed PMID: 37668178
  • Parikh SR, Boudewyns A, Friedman NR, Schwartz SR, Baldassari CM, Benedek P, Carr MM, Chan DK, Chan KC, Cheng AT, Couloigner V, Diala OR, DeRowe A, El-Hakim H, Fayoux P, Hsu WC, Ishman S, Kirkham EM, Mitchell RB, Thevasagayam R, Lam D. International Pediatric Otolaryngology Group (IPOG) consensus on scoring of pediatric Drug Induced Sleep Endoscopy (DISE). Int J Pediatr Otorhinolaryngol. 2023 Aug;171:111627. PubMed PMID: 37441992
  • Lackey TG, Tholen K, Pickett K, Friedman N. Residual OSA in Down syndrome: does body position matter?. J Clin Sleep Med. 2023 Jan 1;19(1):171-177. PubMed PMID: 36081330
  • Friedman NR, Nguyen T, McLeod L. In Reference to "Tonsillectomy for Obstructive Sleep-Disordered Breathing: Should They Stay, or Could They Go?". Laryngoscope. 2023 Sep;133(9):E55-E56. PubMed PMID: 36912387
  • Current Pediatric Tertiary Care Practices Following Adenotonsillectomy: An Update Annie E. Moroco MD, Norman Friedman MD, Christopher Jabbour MD, Soham Roy MD, Richard Schmidt MD, Heather C. Nardone MD First published: 10 December 2023 https://doi.org/10.1002/lary.31216
  • Friedman NR. Adenotonsillectomy for Treatment of Mild Sleep-Disordered Breathing in Children. JAMA Otolaryngol Head Neck Surg. Published online December 05, 2023. doi:10.1001/jamaoto.2023.3808
  • Lackey TG, Tholen K, Pickett K, Friedman N. Residual OSA in Down syndrome: does body position matter?. J Clin Sleep Med. 2022 Sep 9. [Epub ahead of print] PubMed PMID: 36081330
  • Friedman NR, Green KK. Upper Airway Stimulation for Children With Down Syndrome and Obstructive Sleep Apnea-A New Frontier. JAMA Otolaryngol Head Neck Surg. 2022 Jun 1;148(6):529-530. PubMed PMID: 35446405
  • Friedman NR, Meier M, Tholen K, Crowder R, Hoefner-Notz R, Nguyen T, Derieg S, Campbell K, McLeod L. Tonsillectomy for Obstructive Sleep-Disordered Breathing: Should They Stay, or Could They Go?. Laryngoscope. 2022 Aug;132(8):1675-1681. PubMed PMID: 34672364
  • Jensen AM, Herrmann BW, Mitchell RB, Friedman NR. Growth After Adenotonsillectomy for Obstructive Sleep Apnea: Revisited. Laryngoscope. 2022 Jun;132(6):1289-1294. PubMed PMID: 34551129
  • Mooney KL, Brooks Peterson M, Skirko JR, Friedman NR. The Quest for a DISE Protocol. Otolaryngol Head Neck Surg. 2022 Sep;167(3):590-599. PubMed PMID: 34399647
  • Norman R. Friedman, MD, Pediatric Adenotonsillar Disease and Obstructive Sleep-Disordered Breathing, ENT Secrets 5th Edition, Chapter 51, Elservier 2022
  • Hines S, Pickett K, Tholen K, Handley E, Friedman NR. Tonsillectomy Outcomes for Children With Severe Obesity. Laryngoscope. 2022 Feb;132(2):461-469. PubMed PMID: 34191279
  • Duis J, Pullen LC, Picone M, Friedman N, Hawkins S, Sannar E, Pfalzer AC, Shelton AR, Singh D, Zee PC, Glaze DG, Revana A. Diagnosis and management of sleep disorders in Prader-Willi syndrome. J Clin Sleep Med. 2022 Jun 1;18(6):1687-1696. doi: 10.5664/jcsm.9938. PMID: 35172921; PMCID: PMC9163612.
  • Hines S, Pickett K, Tholen K, Handley E, Friedman NR. Tonsillectomy Outcomes for Children With Severe Obesity. Laryngoscope. 2021 Jun 30. [Epub ahead of print] PubMed PMID: 34191279
  • Virbalas J, Friedman NR. Impact of neck CT on the management of suspected pediatric deep neck space infection. Int J Pediatr Otorhinolaryngol. 2021 Aug;147:110782. PubMed PMID: 34038853
  • Vielkind M, Wolter-Warmerdam K, Jackson A, Maybee J, Brown M, Friedlander J, Friedman N, Hickey F, Prager J, Wine T, DeBoer E. Airway obstruction and inflammation on combined bronchoscopy in children with Down syndrome. Pediatr Pulmonol. 2021 Sep;56(9):2932-2939. PubMed PMID: 34245494
  • Baldassari CM, Lam DJ, Ishman SL, Chernobilsky B, Friedman NR, Giordano T, Lawlor C, Mitchell RB, Nardone H, Ruda J, Zalzal H, Deneal A, Dhepyasuwan N, Rosenfeld RM. Expert Consensus Statement: Pediatric Drug-Induced Sleep Endoscopy. Otolaryngol Head Neck Surg. 2021 Oct;165(4):578-591. PubMed PMID: 33400611
  • Jensen AM, Herrmann BW, Mitchell RB, Friedman NR. Growth After Adenotonsillectomy for Obstructive Sleep Apnea: Revisited. Laryngoscope. 2021 Sep 22. [Epub ahead of print] PubMed PMID: 34551129
  • Friedman NR, Meier M, Tholen K, Crowder R, Hoefner-Notz R, Nguyen T, Derieg S, Campbell K, McLeod L. Tonsillectomy for Obstructive Sleep-Disordered Breathing: Should They Stay, or Could They Go?. Laryngoscope. 2021 Oct 21. [Epub ahead of print] PubMed PMID: 34672364
  • Herrmann BW, Campbell K, Meier M, Haemer M, Crowder R, Tholen K, Hoefner-Notz R, Nguyen T, Friedman NR. Parental Perception of Weight Status for Adenotonsillectomy Patients. Laryngoscope. 2021 Sep;131(9):2121-2125. PubMed PMID: 33569790
  • Mooney KL, Brooks Peterson M, Skirko JR, Friedman NR. The Quest for a DISE Protocol. Otolaryngol Head Neck Surg. 2021 Aug 17;:1945998211036645. [Epub ahead of print] PubMed PMID: 34399647
  • Tholen K, Meier M, Kloor J, Friedman N. Persistent OSA in obese children: does body position matter?. J Clin Sleep Med. 2021 Feb 1;17(2):227-232. PubMed PMID: 33094724
  • Scholes M, Jensen E, Meier M, Friedman N. Effect of adenotonsillectomy in children with obstructive sleep apnea and major psychiatric disorders on obstructive apnea-hypopnea index and Epworth Sleepiness Scale scores. J Clin Sleep Med. 2020 Nov 18. [Epub ahead of print] PubMed PMID: 33206042
  • Goldstein NA, Friedman NR, Nardone HC, Aljasser A, Tobey ABJ, Don D, Baroody FM, Lam DJ, Goudy S, Ishman SL, Arganbright JM, Baldassari C, Schreinemakers JBS, Wine TM, Ruszkay NJ, Alammar A, Shaffer AD, Koempel JA, Weedon J. The Generalizability of the Clinical Assessment Score-15 for Pediatric Sleep-Disordered Breathing. Laryngoscope. 2020 Sep;130(9):2256-2262. PubMed PMID: 31782808
  • Tholen K, Meier M, Kloor J, Friedman N. Persistent OSA in obese children: does body position matter?. J Clin Sleep Med. 2020 Oct 23. [Epub ahead of print] PubMed PMID: 33094724
  • Bootpetch TC, Hafrén L, Elling CL, Baschal EE, Manichaikul AW, Pine HS, Szeremeta W, Scholes MA, Cass SP, Larson ED, Chan KH, Ishaq R, Prager JD, Shaikh RS, Gubbels SP, Yousaf A, Wine TM, Bamshad MJ, Yoon PJ, Jenkins HA, Nickerson DA, Streubel SO, Friedman NR, Frank DN, Einarsdottir E, Kere J, Riazuddin S, Daly KA, Leal SM, Ryan AF, Mattila PS, Ahmed ZM, Sale MM, Chonmaitree T, Santos-Cortez RLP. Multi-omic studies on missense PLG variants in families with otitis media. Sci Rep. 2020 Sep 14;10(1):15035. PubMed PMID: 32929111
  • Benedek P, Balakrishnan K, Cunningham MJ, Friedman NR, Goudy SL, Ishman SL, Katona G, Kirkham EM, Lam DJ, Leboulanger N, Lee GS, Le Treut C, Mitchell RB, Muntz HR, Musso MF, Parikh SR, Rahbar R, Roy S, Russell J, Sidell DR, Sie KCY, Smith RJ, Soma MA, Wyatt ME, Zalzal G, Zur KB, Boudewyns A. International Pediatric Otolaryngology group (IPOG) consensus on the diagnosis and management of pediatric obstructive sleep apnea (OSA). Int J Pediatr Otorhinolaryngol. 2020 Nov;138:110276. PubMed PMID: 32810686
  • Goldstein NA, Friedman NR, Nardone HC, Aljasser A, Tobey ABJ, Don D, Baroody FM, Lam DJ, Goudy S, Ishman SL, Arganbright JM, Baldassari C, Schreinemakers JBS, Wine TM, Ruszkay NJ, Alammar A, Shaffer AD, Koempel JA, Weedon J. The generalizability of the clinical assessment score-15 for pediatric sleep-disordered breathing. Laryngoscope. 2019 Nov 29. [Epub ahead of print] PubMed PMID: 31782808
  • Greenlee CJ, Scholes MA, Gao D, Friedman NR. Obstructive Sleep Apnea and Sleep Position: Does It Matter for Infants With a Cleft Palate?. Cleft Palate Craniofac J. 2019 Aug;56(7):890-895. PubMed PMID: 31282194
  • Ruiz AG, Gao D, Ingram DG, Hickey F, Haemer MA, Friedman NR. Does Tonsillectomy Increase Obesity Risk in Children with Down Syndrome?. J Pediatr. 2019 Aug;211:179-184.e1. PubMed PMID: 31084917
  • Friedman NR, Ruiz AG, Gao D, Jensen A, Mitchell RB. Pediatric Obstructive Sleep-Disordered Breathing: Updated Polysomnography Practice Patterns. Otolaryngol Head Neck Surg. 2019 Sep;161(3):529-535. PubMed PMID: 31035864
  • Mitchell RB, Archer SM, Ishman SL, Rosenfeld RM, Coles S, Finestone SA, Friedman NR, Giordano T, Hildrew DM, Kim TW, Lloyd RM, Parikh SR, Shulman ST, Walner DL, Walsh SA, Nnacheta LC. Clinical Practice Guideline: Tonsillectomy in Children (Update)-Executive Summary. Otolaryngol Head Neck Surg. 2019 Feb;160(2):187-205. PubMed PMID: 30921525
  • Mitchell RB, Archer SM, Ishman SL, Rosenfeld RM, Coles S, Finestone SA, Friedman NR, Giordano T, Hildrew DM, Kim TW, Lloyd RM, Parikh SR, Shulman ST, Walner DL, Walsh SA, Nnacheta LC. Clinical Practice Guideline: Tonsillectomy in Children (Update). Otolaryngol Head Neck Surg. 2019 Feb;160(1_suppl):S1-S42. PubMed PMID: 30798778
  • Chung MG, Guilliams KP, Wilson JL, Beslow LA, Dowling MM, Friedman NR, Hassanein SMA, Ichord R, Jordan LC, Mackay MT, Rafay MF, Rivkin M, Torres M, Zafeiriou D, deVeber G, Fox CK. Arterial Ischemic Stroke Secondary to Cardiac Disease in Neonates and Children. Pediatr Neurol. 2019 Nov;100:35-41. PubMed PMID: 31371125
  • 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
  • Friedman NR, Parikh SR, Ishman SL, Ruiz AG, El-Hakim H, Ulualp SO, Wootten CT, Koltai PJ, Chan DK. The current state of pediatric drug-induced sleep endoscopy. Laryngoscope. 2017 Jan;127(1):266-272. PubMed PMID: 27311407
  • Friedman NR, Ruiz AG, Gao D, Ingram DG. Accuracy of Parental Perception of Nighttime Breathing in Children with Down Syndrome. Otolaryngol Head Neck Surg. 2017 Sep 1;:194599817726286. [Epub ahead of print] PubMed PMID: 28871845
  • Ingram DG, Ruiz AG, Gao D, Friedman NR. Success of Tonsillectomy for Obstructive Sleep Apnea in Children With Down Syndrome. J Clin Sleep Med. 2017 Aug 15;13(8):975-980. PubMed PMID: 28728615
  • Friedman NR, Parikh SR, Ishman SL, Ruiz AG, El-Hakim H, Ulualp SO, Wootten CT, Koltai PJ, Chan DK. The current state of pediatric drug-induced sleep endoscopy. Laryngoscope. 2017 Jan;127(1):266-272. PubMed PMID: 27311407
  • Kirk V, Baughn J, D'Andrea L, Friedman N, Galion A, Garetz S, Hassan F, Wrede J, Harrod CG, Malhotra RK. American Academy of Sleep Medicine Position Paper for the Use of a Home Sleep Apnea Test for the Diagnosis of OSA in Children. J Clin Sleep Med. 2017 Oct 15;13(10):1199-1203. PubMed PMID: 28877820
  • Hawkins SM, Jensen EL, Simon SL, Friedman NR. Correlates of Pediatric CPAP Adherence. J Clin Sleep Med. 2016 Jun 15;12(6):879-84. PubMed PMID: 27092702
  • Nardone HC, McKee-Cole KM, Friedman NR. Current Pediatric Tertiary Care Admission Practices Following Adenotonsillectomy. JAMA Otolaryngol Head Neck Surg. 2016 May 1;142(5):452-6. PubMed PMID: 27010313
  • Friedman NR, Prager JD, Ruiz AG, Kezirian EJ. A Pediatric Grading Scale for Lingual Tonsil Hypertrophy. Otolaryngol Head Neck Surg. 2016 Jan;154(1):171-4. PubMed PMID: 26307581
  • Liang C, Ruiz AG, Jensen EL, Friedman NR. Indications, Clinical Course, and Postoperative Outcomes of Urgent Adenotonsillectomy in Children. JAMA Otolaryngol Head Neck Surg. 2015 Jan 2. [Epub ahead of print] PubMed PMID: 25555106
  • Ingram DG, Friedman NR. Toward Adenotonsillectomy in Children: A Review for the General Pediatrician. JAMA Pediatr. 2015 Oct 5;:1-8. [Epub ahead of print] PubMed PMID: 26436644
  • Friedman NR, Prager JD, Ruiz AG, Kezirian EJ. A Pediatric Grading Scale for Lingual Tonsil Hypertrophy. Otolaryngol Head Neck Surg. 2015 Aug 25. [Epub ahead of print] PubMed PMID: 26307581
  • Côté V, Ruiz AG, Perkins J, Sillau S, Friedman NR. Characteristics of children under 2 years of age undergoing tonsillectomy for upper airway obstruction. Int J Pediatr Otorhinolaryngol. 2015 Jun;79(6):903-8. PubMed PMID: 25912628
  • Ingram DG, Ruiz A, Friedman NR. Friedman tongue position: age distribution and relationship to sleep-disordered breathing. Int J Pediatr Otorhinolaryngol. 2015 May;79(5):666-70. PubMed PMID: 25736546
  • Liang C, Ruiz AG, Jensen EL, Friedman NR. Indications, clinical course, and postoperative outcomes of urgent adenotonsillectomy in children. JAMA Otolaryngol Head Neck Surg. 2015 Mar;141(3):236-44. PubMed PMID: 25555106
  • Chatterjee D, Friedman N, Shott S, Mahmoud M. Anesthetic dilemmas for dynamic evaluation of the pediatric upper airway. Semin Cardiothorac Vasc Anesth. 2014 Dec;18(4):371-8. PubMed PMID: 25172630
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Professional Memberships

  • American Academy of Sleep Medicine, Member
  • American Society of Pediatric Otolaryngolgogy, Member
  • ASPO, Member, program committee
  • AAO-HNS, Member of Polysomnogram Guidelines Committee
  • AAO-HNS, External Reviewer of tonsil guidelines

Practice Locations

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

Children's Hospital Colorado South Campus
1811 Plaza Drive
Highlands Ranch, CO 80129
720-478-1234

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

Specialty Information

Specialties
  • Pediatric Otolaryngology, Board Certification (2000)
  • Sleep Medicine
Conditions & Treatments
  • Ear, Nose, and Throat (ENT)
  • Child and Teen Health
  • Ear, Nose, and Throat (ENT) - Hearing Loss
  • Brain and Nervous System - Sleep Disorders
  • Brain and Nervous System
Clinical Interests
Pediatric ear, nose, and throat conditions and pediatric sleep medicine

General Information

Medical Schools:
  • MD, University of Texas Southwestern Medical Center at Dallas Southwestern Medical School (1990)
Residency Programs:
  • University of Texas Southwestern Medical School Program, Otolaryngology - Head & Neck Surgery (1996)
  • University of Texas Southwestern Medical School Program, Surgery (1992)
Fellowships:
  • University of Tennessee/LeBonheur Children's Medical Center Program, Pediatric Otolaryngology (1997)
  • Great Ormand Street Hospital for Sick Children, Pediatric Otolaryngology (1998)
Languages: English
Department: Otolaryngology - Head and Neck Surgery
SOM Resources
CU Resources
Contact Us
CU Anschutz
Fitzsimons Building
13001 East 17th Place
Campus Box C290
Aurora, CO 80045

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