Thomas Freedom, M.D.

Thomas Freedom, M.D.

Thomas Freedom, M.D.

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Personal Bio

Treatment Philosophy

The patient’s health and well-being are primary. My approach utilizes a mixture of the latest scientific knowledge, clinical experience, and the “art” of medicine acquired by learning from my patients. As a specialist, I bring my expertise in every particular aspect of the patient’s medical concerns. The advantage of being part of a large medical group is that all needs of the patient can be met by appropriate referral under the watchful eye of a primary care physician.

Personal Interests

My outside interests include biking, reading, playing and listening to music, and traveling.

Conditions & Procedures


Cervicogenic Headaches, Cluster Headache, Complicated Migraines, Congenital Central Alveolar Hypoventilation Syndrome, Head Pain, Headache, Idiopathic sleep related non-obstructive alveolar hypoventilation, Insomnia, Migraine Headaches, Narcolepsy, Obstructive Sleep Apnea (Adult/Pediatric), Ocular Migraines, Repetitive intrusions of sleep, Sleep Apnea, Sleep Arousal Disorder, Sleep Related Movement Disorder, Visual Auras

General Information




NorthShore Medical Group



Academic Rank

Senior Clinician Educator



Board Certified

Clinical Neurophysiology, Neurology, Sleep Medicine

Clinical Service

Education, Training & Fellowships

Medical School

University of Illinois, 1988


University of Illinois at Chicago Medical Center, 1990


Loyola University Stritch School of Medicine, 1993


Loyola University Stritch School of Medicine, 1994



NorthShore Medical Group

2180 Pfingsten Rd.
Suite 2000
Glenview, IL 60026
847.570.2570 847.657.5708 fax Get Directions This location is wheelchair accessible.



  • Headaches and sleep disorders.

    Disease-a-month : DM 2015 Jun

    Authors: Freedom T
    Headaches and sleep disorders are associated in a complex manner. Both the disorders are common in the general population, but the relationship between the two is more than coincidental. Sleep disorders can exacerbate headache sand the converse is also true. Treatment of sleep disorders can have a positive impact on the treatment of headaches. Screening for sleep disorders should be considered in all patients with headaches. This can be accomplished with brief screening tools. Those who screen positively can be further evaluated or referred to asleep specialist.
    PMID: 25951784 [PubMed - as supplied by publisher]
  • Classification of headache.

    Disease-a-month : DM 2015 Jun

    Authors: Freedom T, Evans RW
    Many patients with headache disorders have coexisting sleep difficulties. As both conditions are relatively common, they could potentially be present simultaneously, even if unrelated. However, there is evidence that a comorbid association between headache and sleep disorders exists.
    PMID: 25913497 [PubMed - as supplied by publisher]
  • Clinical heterogeneity of patients with complex sleep apnea syndrome.

    Sleep & breathing = Schlaf & Atmung 2013 Dec

    Authors: Kuźniar TJ, Kasibowska-Kuźniar K, Ray DW, Freedom T
    The definition of complex sleep apnea (CompSAS) encompasses patients with obstructive sleep apnea (OSA) who develop central apnea activity upon restitution of airway patency. Presence of arterial hypertension (HTN), coronary artery disease (CAD) and heart failure (HF) have been proposed as risk factors for CompSAS among OSA patients. Using our database of patients with CompSAS, we examined the prevalence of these risk factors and defined other clinical characteristics of patients with CompSAS.
    Through retrospective search of the database, we examined the medical and clinical characteristics of consecutive patients diagnosed with CompSAS between 11/1/2006 and 6/30/2011 at NorthShore University HealthSystem.
    One hundred and fifty patients with CompSAS were identified. Among patients included in the study, 97 (64.7 %) had at least one risk factor for CompSAS, while 53 (35.3 %) did not have any of them. Prevalence of low left ventricular ejection fraction and hypocapnia were low. Therapeutic interventions consisted of several positive airway pressure therapies, mainly adaptive servo ventilation. A hundred and ten patients (73.3 %) complied with recommended therapy and improved clinically.
    Although most patients with CompSAS have cardiac comorbidities, about one third of patients do not have any risk factors of CompSAS prior to sleep testing. Further research on factors involved in development of CompSAS will allow for better tailoring of therapy to pathophysiology involved in an individual case.
    PMID: 23436008 [PubMed - as supplied by publisher]
  • Trials of bilevel positive airway pressure - spontaneous in patients with complex sleep apnoea.

    Pneumonologia i alergologia polska 2012

    Authors: Kuźniar TJ, Kasibowska-Kuźniar K, Freedom T
    Patients with complex sleep apnoea (CompSAS) have obstructive sleep apnoea and experience persistent central apnoeas when exposed to positive airway pressure. Elevated loop gain is one of the postulated mechanisms of CompSAS. We speculated that bilevel positive airway pressure - spontaneous (BPAP-S), by producing relative hyperventilation, may more readily produce CompSAS activity than continuous positive airway pressure (CPAP). If found to do so, a trial of BPAP-S might be a simple way of identifying patients with elevated loop gain who are at risk for CompSAS.
    Thirty-nine patients with complex sleep apnoea were included in the study. Segments of NREM sleep on CPAP and BPAP-S matched for body position and expiratory airway pressure (comparison pressure) were retrospectively analysed. Correlations between clinical and demographic variables and polysomnographic response to CPAP and BPAP-S were sought.
    There was no difference in any of the polysomnographic indices on CPAP and BPAP-S. In 19 patients the use of CPAP was associated with lower AHI at the comparison pressure; in 20 patients the opposite was true. No clinical variables correlated to the differential response to CPAP vs. BPAP-S.
    BPAP-S was not more effective than CPAP in stimulating complex sleep apnoea activity.
    PMID: 22562273 [PubMed - as supplied by publisher]
  • Sleep-related movement disorders.

    Disease-a-month : DM 2011 Aug

    PMID: 21929967 [PubMed - as supplied by publisher]

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Featured Videos

NorthShore Sleep Center: Dr. Thomas Freedom (Neurology)

NorthShore Sleep Center: Dr. Thomas Freedom (Neurology)

Sleep Study: Dr. Thomas Freedom (Neurology)

Sleep Study: Dr. Thomas Freedom (Neurology)

Sleep Apnea: Dr. Thomas Freedom (Neurology)

Sleep Apnea: Dr. Thomas Freedom (Neurology)