Demetrius M. Maraganore, M.D.

Demetrius M. Maraganore, M.D.

Demetrius M. Maraganore, M.D.

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Personal Bio

Treatment Philosophy

It is my core value, and the core value of our Department of Neurology, that the needs of the patient come first. I believe that as the leaders in our field, it is our responsibility to provide tomorrow's healthcare today.

Personal Interests

My personal interests are to develop methods to predict, prevent, and halt neurological diseases, through the application of molecular prognostic and therapeutic approaches; and to lead the region's pre-eminent providers of neurological care.

Conditions & Procedures


Parkinsonism, Parkinson's Disease (PD), Tremors

General Information




NorthShore Medical Group

Academic Rank

Clinical Professor


English, Greek, Italian

Board Certified


Clinical Service

Education, Training & Fellowships

Medical School

Northwestern Feinberg School of Medicine, 1985


Mayo School of Graduate Medical Education, 1986


Mayo School of Graduate Medical Education, 1989


National Hospital for Neurology and Neurosurgery, 1990



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.


Commercial Plans
  • Aetna Choice POS
  • Aetna Elect Choice EPO and EPO
  • Aetna Health Network Options
  • Aetna HMO
  • Aetna Managed Choice
  • Aetna Managed Choice POS
  • Aetna Open Choice PPO
  • Aetna Open Choice PPO (Aetna HealthFund)
  • Aetna QPOS
  • Aetna Savings Plus
  • Aetna Select
  • Beechstreet PPO Network
  • Blue Cross Blue Shield - PPO Products
    Not Contracted Blue Cross Blue Shield Blue Choice PPO
  • Blue Cross Blue Shield Blue Advantage
  • Blue Cross Blue Shield HMOI
  • Cigna HMO
  • Cigna LocalPlus
  • Cigna Open Access Plus (OAP)
  • Cigna Open Access Plus with CareLink (OAPC)
  • Cigna POS
  • Cigna PPO
  • Cofinity PPO (an Aetna Company)
  • Coventry Health Care Elect Choice EPO
  • Coventry Health Care First Health PPO
  • Galaxy Health PPO Network
  • Great West PPO/POS
  • Healthcare's Finest Network (HFN)
  • Humana - All Commercial Plans (including Choice Care)
  • Humana - NorthShore Complete Care
  • Humana/ChoiceCare Network PPO
  • Medicare
  • Multiplan and PHCS PPO Network (Including PHCS Savility)
  • NorthShore Employee Network
  • Preferred Plan PPO
  • Three Rivers Provider PPO Network (TRPN)
  • Tricare
  • Unicare
  • United Healthcare - All Commercial Plans
    Not Contracted United Healthcare Core
    Not Contracted United Healthcare Navigate
Exchange Plans
  • Aetna Whole Health Chicago
  • Not Contracted Blue Cross Blue Shield - PPO Products
    Not Contracted Blue Cross Blue Shield Blue Choice PPO
  • Blue Cross Blue Shield Blue Precision HMO
  • Coventry (PPO)
  • Harken Health - an Affiliate of United Healthcare
    Verify physician participation and out of pocket expenses with Harken
  • Land of Lincoln Health Traditional PPO
  • Not Contracted United Healthcare Compass
  • Illinois Department of Public Aid (IDPA)
  • Illinicare ICP
  • Community Care Partners
Medicare Advantage Plans
  • Aetna Medicare (SM) Plan (HMO)
  • Aetna Medicare (SM) Plan (PPO)
  • Blue Cross Blue Shield Medicare Advantage PPO Plan
  • Cigna-HealthSpring Advantage HMO
  • Cigna-HealthSpring Premier HMO-POS
  • Cigna-HealthSpring Primary HMO
  • Humana Gold Plus HMO
  • Humana Gold Plus PFFS
  • HumanaChoice PPO
  • United Healthcare - All Medicare Plans
Medicare Medicaid Alignment Initiative (MMAI) Plans
  • Blue Cross Blue Shield Community
  • HealthSpring
  • Humana
  • Illinicare Health Plan
  • Meridian Complete


  • MAPT haplotype H1G is associated with increased risk of dementia with Lewy bodies.

    Alzheimer's & dementia : the journal of the Alzheimer's Association 2016 Jun 7

    Authors: Labbé C, Heckman MG, Lorenzo-Betancor O, Soto-Ortolaza AI, Walton RL, Murray ME, Allen M, Uitti RJ, Wszolek ZK, Smith GE, Kantarci K, Knopman DS, Lowe VJ, Jack CR
    The MAPT H1 haplotype has been associated with several neurodegenerative diseases. We were interested in exploring the role of MAPT haplotypic variation in risk of dementia with Lewy bodies (DLB).
    We genotyped six MAPT haplotype tagging SNPs and screened 431 clinical DLB cases, 347 pathologically defined high-likelihood DLB cases, and 1049 controls.
    We performed haplotypic association tests and detected an association with the protective H2 haplotype in our combined series (odds ratio [OR] = 0.75). We fine-mapped the locus and identified a relatively rare haplotype, H1G, that is associated with an increased risk of DLB (OR = 3.30, P = .0017). This association was replicated in our pathologically defined series (OR = 2.26, P = .035).
    These results support a role for H1 and specifically H1G in susceptibility to DLB. However, the exact functional variant at the locus is still unknown, and additional studies are warranted to fully explain genetic risk of DLB at the MAPT locus.
    PMID: 27287057 [PubMed - as supplied by publisher]
  • Quality improvement and practice-based research in neurology using the electronic medical record.

    Neurology. Clinical practice 2015 Oct

    Authors: Maraganore DM, Frigerio R, Kazmi N, Meyers SL, Sefa M, Walters SA, Silverstein JC
    We describe quality improvement and practice-based research using the electronic medical record (EMR) in a community health system-based department of neurology. Our care transformation initiative targets 10 neurologic disorders (brain tumors, epilepsy, migraine, memory disorders, mild traumatic brain injury, multiple sclerosis, neuropathy, Parkinson disease, restless legs syndrome, and stroke) and brain health (risk assessments and interventions to prevent Alzheimer disease and related disorders in targeted populations). Our informatics methods include building and implementing structured clinical documentation support tools in the EMR; electronic data capture; enrollment, data quality, and descriptive reports; quality improvement projects; clinical decision support tools; subgroup-based adaptive assignments and pragmatic trials; and DNA biobanking. We are sharing EMR tools and deidentified data with other departments toward the creation of a Neurology Practice-Based Research Network. We discuss practical points to assist other clinical practices to make quality improvements and practice-based research in neurology using the EMR a reality.
    PMID: 26576324 [PubMed - as supplied by publisher]
  • Large-scale assessment of polyglutamine repeat expansions in Parkinson disease.

    Neurology 2015 Oct 13

    Authors: Wang L, Aasly JO, Annesi G, Bardien S, Bozi M, Brice A, Carr J, Chung SJ, Clarke C, Crosiers D, Deutschländer A, Eckstein G, Farrer MJ, Goldwurm S, Garraux G, Hadjigeorgiou GM, Hicks AA, Hattori N, Klein C, Jeon B, Kim YJ, Lesage S, Lin JJ, Lynch T, Lichtner P, Lang AE, Mok V, Jasinska-Myga B, Mellick GD, Morrison KE, Opala G, Pihlstrøm L, Pramstaller PP, Park SS, Quattrone A, Rogaeva E, Ross OA, Stefanis L, Stockton JD, Silburn PA, Theuns J, Tan EK, Tomiyama H, Toft M, Van Broeckhoven C, Uitti RJ, Wirdefeldt K, Wszolek Z, Xiromerisiou G, Yueh KC, Zhao Y, Gasser T, Maraganore DM, Krüger R, Sharma M, GEO-PD Consortium
    We aim to clarify the pathogenic role of intermediate size repeat expansions of SCA2, SCA3, SCA6, and SCA17 as risk factors for idiopathic Parkinson disease (PD).
    We invited researchers from the Genetic Epidemiology of Parkinson's Disease Consortium to participate in the study. There were 12,346 cases and 8,164 controls genotyped, for a total of 4 repeats within the SCA2, SCA3, SCA6, and SCA17 genes. Fixed- and random-effects models were used to estimate the summary risk estimates for the genes. We investigated between-study heterogeneity and heterogeneity between different ethnic populations.
    We did not observe any definite pathogenic repeat expansions for SCA2, SCA3, SCA6, and SCA17 genes in patients with idiopathic PD from Caucasian and Asian populations. Furthermore, overall analysis did not reveal any significant association between intermediate repeats and PD. The effect estimates (odds ratio) ranged from 0.93 to 1.01 in the overall cohort for the SCA2, SCA3, SCA6, and SCA17 loci.
    Our study did not support a major role for definite pathogenic repeat expansions in SCA2, SCA3, SCA6, and SCA17 genes for idiopathic PD. Thus, results of this large study do not support diagnostic screening of SCA2, SCA3, SCA6, and SCA17 gene repeats in the common idiopathic form of PD. Likewise, this largest multicentered study performed to date excludes the role of intermediate repeats of these genes as a risk factor for PD.
    PMID: 26354989 [PubMed - as supplied by publisher]
  • Role for the microtubule-associated protein tau variant p.A152T in risk of α-synucleinopathies.

    Neurology 2015 Nov 10

    Authors: Labbé C, Ogaki K, Lorenzo-Betancor O, Soto-Ortolaza AI, Walton RL, Rayaprolu S, Fujioka S, Murray ME, Heckman MG, Puschmann A, McCarthy A, Lynch T, Siuda J, Opala G, Rudzinska M, Krygowska-Wajs A, Barcikowska M, Czyzewski K, Sanotsky Y, Rektorová I, McLean PJ, Rademakers R, Ertekin-Taner N, Hassan A, Ahlskog JE, Boeve BF, Petersen RC, Maraganore DM, Adler CH, Ferman TJ, Parisi JE, Graff-Radford NR, Uitti RJ, Wszolek ZK, Dickson DW, Ross OA
    To assess the importance of MAPT variant p.A152T in the risk of synucleinopathies.
    In this case-control study, we screened a large global series of patients and controls, and assessed associations between p.A152T and disease risk. We included 3,229 patients with clinical Parkinson disease (PD), 442 with clinical dementia with Lewy bodies (DLB), 181 with multiple system atrophy (MSA), 832 with pathologically confirmed Lewy body disease (LBD), and 2,456 healthy controls.
    The minor allele frequencies (MAF) in clinical PD cases (0.28%) and in controls (0.2%) were not found to be significantly different (odds ratio [OR] 1.37, 95% confidence interval [CI] 0.63-2.98, p = 0.42). However, a significant association was observed with clinical DLB (MAF 0.68%, OR 5.76, 95% CI 1.62-20.51, p = 0.007) and LBD (MAF 0.42%, OR 3.55, 95% CI 1.04-12.17, p = 0.04). Additionally, p.A152T was more common in patients with MSA compared to controls (MAF 0.55%, OR 4.68, 95% CI 0.85-25.72, p = 0.08) but this was not statistically significant and therefore should be interpreted with caution.
    Overall, our findings suggest that MAPT p.A152T is a rare low penetrance variant likely associated with DLB that may be influenced by coexisting LBD and AD pathology. Given the rare nature of the variant, further studies with greater sample size are warranted and will help to fully explain the role of p.A152T in the pathogenesis of the synucleinopathies.
    PMID: 26333800 [PubMed - as supplied by publisher]
  • Clinically meaningful parameters of progression and long-term outcome of Parkinson disease: An international consensus statement.

    Parkinsonism & related disorders 2015 Jul

    Authors: Puschmann A, Brighina L, Markopoulou K, Aasly J, Chung SJ, Frigerio R, Hadjigeorgiou G, Kõks S, Krüger R, Siuda J, Wider C, Zesiewicz TA, Maraganore DM
    Parkinson disease (PD) is associated with a clinical course of variable duration, severity, and a combination of motor and non-motor features. Recent PD research has focused primarily on etiology rather than clinical progression and long-term outcomes. For the PD patient, caregivers, and clinicians, information on expected clinical progression and long-term outcomes is of great importance. Today, it remains largely unknown what factors influence long-term clinical progression and outcomes in PD; recent data indicate that the factors that increase the risk to develop PD differ, at least partly, from those that accelerate clinical progression and lead to worse outcomes. Prospective studies will be required to identify factors that influence progression and outcome. We suggest that data for such studies is collected during routine office visits in order to guarantee high external validity of such research. We report here the results of a consensus meeting of international movement disorder experts from the Genetic Epidemiology of Parkinson's Disease (GEO-PD) consortium, who convened to define which long-term outcomes are of interest to patients, caregivers and clinicians, and what is presently known about environmental or genetic factors influencing clinical progression or long-term outcomes in PD. We propose a panel of rating scales that collects a significant amount of phenotypic information, can be performed in the routine office visit and allows international standardization. Research into the progression and long-term outcomes of PD aims at providing individual prognostic information early, adapting treatment choices, and taking specific measures to provide care optimized to the individual patient's needs.
    PMID: 25952959 [PubMed - as supplied by publisher]
  • Nicholas A. Vick, MD (1939–2014).

    Neurology 2015 Feb 10

    Authors: Theuns J, Verstraeten A, Sleegers K, Wauters E, Gijselinck I, Smolders S, Crosiers D, Corsmit E, Elinck E, Sharma M, Krüger R, Lesage S, Brice A, Chung SJ, Kim MJ, Kim YJ, Ross OA, Wszolek ZK, Rogaeva E, Xi Z, Lang AE, Klein C, Weissbach A, Mellick GD, Silburn PA, Hadjigeorgiou GM, Dardiotis E, Hattori N, Ogaki K, Tan EK, Zhao Y, Aasly J, Valente EM, Petrucci S, Annesi G, Quattrone A, Ferrarese C, Brighina L, Deutschländer A, Puschmann A, Nilsson C, Garraux G, LeDoux MS, Pfeiffer RF, Boczarska-Jedynak M, Opala G, Maraganore DM, Engelborghs S, De Deyn PP, Cras P, Cruts M, Van Broeckhoven C, GEO-PD Consortium
    The objective of this study is to clarify the role of (G4C2)n expansions in the etiology of Parkinson disease (PD) in the worldwide multicenter Genetic Epidemiology of Parkinson's Disease (GEO-PD) cohort.
    C9orf72 (G4C2)n repeats were assessed in a GEO-PD cohort of 7,494 patients diagnosed with PD and 5,886 neurologically healthy control individuals ascertained in Europe, Asia, North America, and Australia.
    A pathogenic (G4C2)n>60 expansion was detected in only 4 patients with PD (4/7,232; 0.055%), all with a positive family history of neurodegenerative dementia, amyotrophic lateral sclerosis, or atypical parkinsonism, while no carriers were detected with typical sporadic or familial PD. Meta-analysis revealed a small increase in risk of PD with an increasing number of (G4C2)n repeats; however, we could not detect a robust association between the C9orf72 (G4C2)n repeat and PD, and the population attributable risk was low.
    Together, these findings indicate that expansions in C9orf72 do not have a major role in the pathogenesis of PD. Testing for C9orf72 repeat expansions should only be considered in patients with PD who have overt symptoms of frontotemporal lobar degeneration/amyotrophic lateral sclerosis or apparent family history of neurodegenerative dementia or motor neuron disease.
    PMID: 25811061 [PubMed - as supplied by publisher]
  • Does α-synuclein have a dual and opposing effect in preclinical vs. clinical Parkinson's disease?

    Parkinsonism & related disorders 2014 Jun

    Authors: Markopoulou K, Biernacka JM, Armasu SM, Anderson KJ, Ahlskog JE, Chase BA, Chung SJ, Cunningham JM, Farrer M, Frigerio R, Maraganore DM
    α-Synuclein gene (SNCA) multiplications cause familial parkinsonism and allele-length polymorphisms within the SNCA dinucleotide repeat REP1 increase the risk for developing Parkinson's disease (PD). Since SNCA multiplications increase SNCA expression, and REP1 genotypes that increase the risk of developing PD show increased SNCA expression in cell-culture systems, animal models, and human blood and brain, PD therapies seek to reduce SNCA expression. We conducted an observational study of 1098 PD cases to test the hypothesis that REP1 genotypes correlated with reduced SNCA expression are associated with better motor and cognitive outcomes. We evaluated the association of REP1 genotypes with survival free of Hoehn and Yahr stages 4 or 5 (motor outcome) and of Modified Telephone Interview for Cognitive Status score ≤27 or Alzheimer's Disease Dementia Screening Interview score ≥2 (cognitive outcome). Median disease duration at baseline was 3.3 years and median lag time from baseline to follow-up was 7.8 years. Paradoxically, REP1 genotypes associated with increased risk of developing PD and increased SNCA expression were associated with better motor (HR = 0.87, p = 0.046, covariate-adjusted age-scale analysis; HR = 0.85, p = 0.020, covariate-adjusted time-scale analysis) and cognitive outcomes (HR = 0.90, p = 0.12, covariate-adjusted age-scale analysis; HR = 0.85, p = 0.023, covariate-adjusted time-scale analysis). Our findings raise the possibility that SNCA has a dual, opposing, and time-dependent role. This may have implications for the development of therapies that target SNCA expression.
    PMID: 24656894 [PubMed - as supplied by publisher]
  • Alpha-synuclein repeat variants and survival in Parkinson's disease.

    Movement disorders : official journal of the Movement Disorder Society 2014 Jul

    Authors: Chung SJ, Biernacka JM, Armasu SM, Anderson K, Frigerio R, Aasly JO, Annesi G, Bentivoglio AR, Brighina L, Chartier-Harlin MC, Goldwurm S, Hadjigeorgiou G, Jasinska-Myga B, Jeon BS, Kim YJ, Krüger R, Lesage S, Markopoulou K, Mellick G, Morrison KE, Puschmann A, Tan EK, Crosiers D, Theuns J, Van Broeckhoven C, Wirdefeldt K, Wszolek ZK, Elbaz A, Maraganore DM, Genetic Epidemiology of Parkinson's Disease Consortium
    To determine whether α-synuclein dinucleotide repeat (REP1) genotypes are associated with survival in Parkinson's disease (PD).
    Investigators from the Genetic Epidemiology of Parkinson's Disease Consortium provided REP1 genotypes and baseline and follow-up clinical data for cases. The primary outcome was time to death. Cox proportional hazards regression models were used to assess the association of REP1 genotypes with survival.
    Twenty-one sites contributed data for 6,154 cases. There was no significant association between α-synuclein REP1 genotypes and survival in PD. However, there was a significant association between REP1 genotypes and age at onset of PD (hazard ratio: 1.06; 95% confidence interval: 1.01-1.10; P value = 0.01).
    In our large consortium study, α-synuclein REP1 genotypes were not associated with survival in PD. Further studies of α-synuclein's role in disease progression and long-term outcomes are needed.
    PMID: 24578302 [PubMed - as supplied by publisher]

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The Center for Brain Health at NorthShore Neurological Institute empowers you with prevention strategies, so you can keep your brain healthy as long as possible. Our mission is to preserve and improve brain health by preventing neurodegenerative diseases.

The Center for Brain Health at NorthShore Neurological Institute empowers you with prevention strategies, so you can keep your brain healthy as long as possible. Our mission is to preserve and improve brain health by preventing neurodegenerative diseases.

Drs. Demetrius Maraganore and Julian Bailes discuss the innovative research being done at the NorthShore Neurological Institute.

Drs. Demetrius Maraganore and Julian Bailes discuss the innovative research being done at the NorthShore Neurological Institute.

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NorthShore Neurological Institute - Centers & Programs: Doctors Bailes, Alleva & Maraganore (Neurology)

NorthShore Neurological Institute: Doctors Bailes, Alleva & Maraganore (Neurology)

NorthShore Neurological Institute: Doctors Bailes, Alleva & Maraganore (Neurology)