Circadian Sleep Disorders Network - Advocating for people with misaligned body clocks
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Find a Doctor

Patients with DSPD or Non-24
have found these sleep specialists to be
knowledgeable and helpful
regarding CRDs

Disclaimer: We simply post suggestions we receive from (one or more) patients. We do not have first-hand knowledge of these doctors, and cannot be held responsible for bad suggestions or errors in posted information.

Let us know at  if you find errors or broken links.

We would like to hear about other doctors who have good and up-to-date knowledge about circadian rhythm disorders (CRDs) and are supportive. If you (or your child) have seen such a doctor for a CRD and would like to suggest him/her for inclusion, please send us () the contact information, the doctor's specialty, and any comments you wish to include such as your diagnosis. (Your name and comments will remain private.) Thank you for helping others find a doctor.

Jump to doctors in the USA

DOCTORS OUTSIDE OF THE USA, alphabetically by country (English name):


Darren Mansfield, PhD
Monash University Healthy Sleep Clinic
Notting Hill (Melbourne), Victoria, Australia
Tel: +61 3 9905 1428

Dev Banerjee, Sleep Disorder Specialist
Medical Director at Woolcock Institute of Medical Research, University of Sydney,
431 Glebe Point Road, Glebe
2037 Sydney, New South Wales, Australia
Staff Specialist in Sleep and Thoracic Medicine at St Vincent's, Darlinghurst
Sydney, New South Wales, Australia


Dr Olivier Van Reeth
Centre d'Études des Rythmes Biologiques,
School of Medicine-Université Libre de Bruxelles, Hôpital Erasme, Route de Lennik, 808,
1070 Brussels, Belgium


Dra. Dalva Poyares
Instituto do Sono
Rua Marselhesa, 500 - 10º andar
São Paulo - SP - Brazil
Tel: +55 11 2108-7777


Maureen Ceresney, Psychiatrist
Sleep Disorders Clinic, University of British Columbia
G285-2211 Wesbrook Mall
Vancouver, BC, Canada, V6T 2B5
Telephone: 604-822-7606; referral required

Colin M Shapiro
Director of the Sleep & Alertness Clinic & Sleep Research Laboratory
Toronto Western Hospital
Toronto, Ontario, Canada
Telephone: 416-603-5075
Director of the Youthdale Child & Adolescent Sleep Clinic
Toronto, Ontario, Canada
Telephone: 416-703-0505


Sleep-neurology clinic
Helsinki, Finland


Dr. Dieter Kunz (Somnologe)
Klinik für Schlaf- und Chronomedizin im St. Hedwig-Krankenhaus
AG Schlafforschung & Klinische Chronobiologie im Institut für Physiologie der Charité
Große Hamburger Straße 5-11
10115 Berlin, Germany


Paul Bejjani, Neurologist


Dr M Vlak
Sleepcenter, MCH Westeinde
The Hague, The Netherlands


Fred Holsten, MD, Psychiatrist, PhD
Bergen søvnsenter
Bryggen 9
NO-5003 Bergen, Norway
Fax: 55 32 31 53

Simranjit Kaur Bajwa, neurology, sleep
Sørkedalsveien 10C
0369, Oslo, Norway
Telefon: 0047 23 19 50 20

Frode Engtrø, M.D. familiar with CRDs
Spesialist i Allmenmedisin, Idnr 8352798
Mathesongården legesenter
NO-7011 Trondheim, Norway
Telefon: 73 87 04 80


Hans Wickbom, Överläkare
Avesta, Dalarna, Sweden
Telefon: 0226-49 61 37


Derya Karadeniz, Professor of Neurology specializing in sleep disorders
Head of Sleep Disorders Unit in Istanbul University, Cerrahpasa Medical Faculty
Tesvikiye mah. Hakki Yeten cad. Unimed Center No:19 Kat:10
Fulya, Besiktas, Istanbul, Turkey.
Tel: +90 212 343 13 85


Dan Park — Consultant Respiratory Medicine
Heart of England Hospital, Birmingham Heartlands Hospital
Bordesley Green East
Birmingham, B9 5SS, UK
Tel (main switchboard): 0121 424 2000

Michael Farquhar, MD
Children's Sleep Medicine Dept.
Children's Neuroscience Centre (Newcomen Centre at St Thomas') floor 2
Becket House
St Thomas' Hospital
Westminster Bridge Road
London, SE1 7EH, UK
Tel: 020 7188 7188

Adrian Williams, clinical director, consultant sleep and respiratory physician
St Thomas' Hospital
Westminster Bridge Road
London, SE1 7EH, UK
Tel: 020 7188 8937

Paul Reading MA, MB BChir, PhD (London & Edinburgh)
Consultant Neurologist, The James Cook University Hospital,
Middlesbrough, TS4 3BW, UK
President of the British Sleep Society
Tel: 01642 850850 ext. 55758

Kirstie Anderson, Consultant Neurologist
Newcastle Upon Tyne Hospitals
NHS Foundation Trust Neurological Sleep Disorders team
Royal Victory Infirmary
Newcastle, NE1 4LP, UK
Tel: 0191 282 3833

Zenobia Zaiwalla, Neurology, Clinical Neurophysiology, paediatric EEG, sleep disorders
Oxford Non-Respiratory Sleep Disorders Clinic
Neurosciences Department, West Wing, John Radcliffe Hospital
Oxford, OX3 9DU, UK
Telephone: 01865 226315; Fax: 01865 763461

Camille Carroll, MD, PhD
Honorary Consultant Neurologist, Plymouth Hospitals NHS Trust
N16, ITTC, Tamar Science Park
Drake Circus
Plymouth, PL4 8AA, UK
Tel: +44 1752 439829

DOCTORS IN THE USA, alphabetically by state:


Ross Dodge, MD, Sleep Medicine and Internal Medicine
Peak Neurology and Sleep Medicine, LLC
2741 Debarr Rd, Suite C-308
Anchorage, Alaska 99508
Phone: (907)-331-3640 Fax: (907)-331-3647


Jose de Ocampo, MD, D-ABSM
Arizona Neurology and Sleep Center
10290 N. 92nd Street, Suite 300, Medical Plaza II
Scottsdale, Arizona 85258
Phone: 480-718-9241

Janet E. Tatman, PhD, PA-C [retired]
2410 West Ray Road,
Chandler, Arizona 85224
Phone: (480) 820-4297


Delmer W. Henninger, Jr., Pulmonary and Sleep Medicine
Complete Sleep Solutions
(Los Angeles area) Murrieta, California
(Los Angeles area) Riverside, California

Baldev Rai, Neurologist
Sleep Disorders Medical Center
4500 Brockton Ave, Ste 205
(Los Angeles area) Riverside, California 92501
Phone: 951-784-7190

Lydia Wytrzes, Board certified in Neurology and Sleep Medicine
Sutter Sleep Disorders Centers
1625 Stockton Blvd., Suite 111
Sacramento, California 95816

William N. Devor, Neurologist
Herber Joseph Yue, Pulmonologist
Mona Breid, Nurse Practitioner
Kaiser Permanente
4405 Vandever Ave
San Diego, California

Omar Mesawri, MD (Pulmonology and Sleep Medicine)
UC San Diego Center for Sleep Medicine
4520 Executive Dr, Plaza P2
San Diego, California 92121
(844) 757-5337


Ann Halbower, pulmonology & pediatrics
Children's Hospital Colorado, 13123 E. 16th Avenue, B395
Aurora, Colorado 80045-7106
Phone: 720-777-6181

Mark B Neagle, Pulmonology, Sleep Medicine
UC Health, 2121 E Harmony Rd Suite 300
Fort Collins, Colorado 80528
Phone: 970-224-9102

Terry Himes, Pulmonologist
Neuroscience Center of the Rockies
1635 Foxtrail Dr Ste 215
Loveland, Colorado 80538


Paul M. Greif, Pulmonologist, American Board of Sleep Medicine Diplomate
Eastern Connecticut Sleep Center, Windham Hospital
Willimantic, Connecticut
Additional office location: Norwich, Connecticut


Mary H. Wagner, board certified in Sleep Medicine (only sees kids), Pediatric Pulmonary and Pediatrics
University of Florida Sleep Clinic
Gainesville, Florida
Phone: 352-265-5240

Joseph Giaimo, DO, PA, Pulmonologist (Doctor of Osteopathy)
2511 Burns Road
Palm Beach Gardens, Florida
Phone: 561-775-3883

Timothy L. Grant, Neurology and Sleep Medicine
6141 Sunset Dr. Suite 301
South Miami, Florida 33143
Phone: 305-665-5552

W. McDowell Anderson, MD, Professor
Medical Director, Tampa General Hospital Sleep Disorder Center
Tampa, Florida
We have been told that as of June 2016 he does not offer afternoon appointments


John Steffans, Neurologist
St. Luke's Clinic Neurology
Twin Falls, Idaho


Sabra M. Abbot, MD/PhD, Asst. Professor in Neurology
Specialty: Circadian Rhythm Sleep-Wake Disorders
Ken and Ruth Davee Department of Neurology
Northwestern University
Chicago, Illinois

Robert W. Hart, Internal Medicine, American Academy of Sleep Medicine
800 Biesterfield Road, Ste 510
Elk Grove Village, Illinois 60007

Richard John Munson, M.D.
NorthShore Medical Group
Several locations
North Shore, Illinois


Ryan G. Wetzler, Doctor of Psychology (Psy.D.), Sleep and Health Psychologist
Chest Medicine Associates, 3430 Newburg Rd., Suite 150
Louisville, Kentucky 40218
Phone: (502) 454-0755; Office: (502) 459-9127


Robert Thomas
Division of Pulmonary and Sleep Medicine, Beth Israel Deaconess Medical Center
330 Brookline Ave
Boston, Massachusetts 02215
Phone: (617) 667-5864


Professor Timothy F. Hoban, MD, Pediatric Neurology, Pediatrics
C. S. Mott Children's Hospital, University of Michigan
1540 E. Hospital Dr., Rm 12-733
Ann Arbor, Michigan 48109

Bradley Rowens, Internal Medicine, Pulmonology, Sleep Medicine
Michigan Institute for Sleep Medicine, Ascension Providence Hospital
47601 Grand River Ave
Suite # B229 - Outpatient Center
Novi, Michigan 48374
Phone: (248) 465-4290

Farrukh Siddiqui , M.D.
WMH Sleep Medicine
550 Osborn Blvd / Community Medical Center Building / Suite 201
Sault Ste. Marie, Michigan 49783
Phone: 906-253-2788,-m.d.-370.html


Okeanis Vaou, Board Certified Neurologist, Board Eligible Sleep Medicine, Movement Disorder Specialist
Noran Neurological Clinic, 2828 Chicago Ave. Suite 200
Minneapolis, Minnesota 55407
Appt Line: 612-879-1500
(Dr. Vaou speaks Greek as well as English.)

Robert Auger, MD, psychiatrist, sleep specialist
Mayo Clinic
Rochester, Minnesota

New York

Anila Q Siddiqui, MD, Sleep Medicine
910 Route 109 Suite B Lower Level,
Lindenhurst, NY 11757
also 380 Merrick Ave, East Meadow, NY 11554
Phone: (516) 279-6210

Michael Yurcheshen MD
University of Rochester Medical Center
2337 S Clinton Ave
Rochester, New York 14618
Phone: (585) 341-7575

North Carolina

Sampath Charya, MBBS, Internal Medicine and Sleep Medicine
Fayetteville VA Medical Center
2300 Ramsey St
Fayetteville, North Carolina 28301
Phone: (910) 488-2120
Veterans only

Allison T Siebern, PhD, CBSM, Sleep Health Integrative Program
Fayetteville VA Medical Center
2300 Ramsey St
Fayetteville, North Carolina 28301
Phone: (910) 488-2120 Ext 7839
Veterans only, and requires a referral from a regular sleep doctor

Kathy A Marks, MD, Pulmonary Diseases
CarolinaEast Internal Medicine
137 Medical Lane
Pollocksville, North Carolina 28573
Phone: (252) 633-1010


Nancy Foldvary-Schaefer, DO, MS
Sally Ibrahim, MD
Carlos Rodriguez, MD
Michelle Drerup, PsyD
Sleep Disorders Center, Cleveland Clinic
Cleveland, Ohio 44195
Phone: 216-636-5860


Jonathan Emens, MD, Assistent Professor of Psychiatry
Oregon Health & Science University School of Medicine
Portland, Oregon 97239
No longer listed at the OHSU clinic. Listed as a researcher:
and at the VA:

Kyle P. Johnson, Psychiatrist and Sleep Specialist
Oregon Health & Science University Sleep Disorders Program
Hatfield Research Center
3181 SW Sam Jackson Park Road
Portland, Oregon 97239
Phone: 503 494-6066

Andrea Matsumura, MD, MS, FACP
The Oregon Clinic - East (Providence)
Pulmonary, Critical Care & Sleep Medicine - East
1111 NE 99th Ave. Suite 200
Portland, Oregon 97220
Phone: 503-963-3030


John S. Khoury
Abington Memorial Hospital Sleep Disorders Center
1200 Old York Rd 2nd Floor
Buerger Building
Abington, Pennsylvania 19006
Phone: (218) 481-4180

Guillermo Borrero, Psychiatry and Sleep Medicine
575 Coal Valley Rd # 303
Clairton, Pennsylvania 15025-3730
Phone: (412) 469-8933

Philip R. Gehrman, PhD, CBSM
Penn Sleep Center, a facility of the Hospital of the University of Pennsylvania
Suite 201, 3624 Market Street
Philadelphia, Pennsylvania, 19104
Phone: (215) 662-7772

Ritu G. Grewal
Jefferson University Hospitals at three locations in
Philadelphia, Pennsylvania
Phone: 1-800-533-3669

Daniel J. Buysse, M.D., UPMC Professor of Sleep Medicine
University of Pittsburgh School of Medicine
3811 O'Hara St.
Pittsburgh, Pennsylvania 15213
Phone: (412) 246-6413

Rhode Island

Katherine M. Sharkey, MD, PhD, Sleep Medicine
also Lauren A. Cushing, MSN, RNP
Pulmonary, Critical Care & Sleep Medicine, University Medicine
1 James P. Murphy Highway
West Warwick, Rhode Island 02893
Phone: 401-615-5878


Pamela Howard, M.D., board certified in Neurology and Sleep Medicine
Austin Neurology and Sleep Associates
711 W. 38th St., Bldg. E-1
Austin, Texas 78705
Phone: (512) 477-5337

Anthony Zachria, DO, Board certified in Pulmonology, Critical Care, Sleep Medicine
College Station Center for Pulmonary and Sleep Disorders
1602 Rock Prairie Rd, Suite 2000
College Station, Texas
Phone: (979) 694-1300; Fax: (979) 694-1313

Todd Swick M.D., F.A.A.N., F.A.A.S.M., Medical Director
Houston Sleep and Neurology Associates
7500 San Felipe, Suite 525
Houston, Texas 77063
Phone: (713) 465-9282
also has an office in Cypress, TX

Billy M. Eden, Pulmonary and Sleep Medicine, Board Certified in Sleep Medicine
Trinity Clinic Sleep Medicine
120 E Charnwood St Ste B
Tyler, Texas 75701
Phone: (903) 525-1664


Richard L. Cho, M.D., Neurologist
Sleep Diagnostic & Treatment Center, Neurology Center of Fairfax, Ltd.
1830 Town Center Drive, Suite 305
Reston, Virginia 20190
Phone: 703-876-2850

Daniel Cohen, Neurologist with Subspecialty Certification in Sleep Medicine
600 Gresham Drive, Suite 8630
Norfolk, Virginia 23507
Phone: 757-388-6105

Mark Lezycyn, Pediatric Neurologist
VCU Sleep Center, accredited by the American Academy of Sleep Medicine
Richmond, Virginia


Carla Hellekson, Sleep Medicine and Psychiatry
Mercer Canal Building, 1300 114th Ave. SE, Suite 102
Bellevue, Washington 98004
Phone: 425-688-1888

Daniel T Clerc, MD
3021 Griffin Ave
Enumclaw, Washington 98022
Phone: 360-825-6511
15214 Canyon Rd E
Puyallup, Washington 98375
Phone: 253-539-4200

Lina Fine, MD Sleep Medicine
Swedish Sleep Medicine - Cherry Hill
550 17th Avenue
James Tower, Level A-20
Seattle, Washington 98122
Phone: 206-386-4744

Gandis G. Mažeika, MD, Sleep Medicine
Sound Sleep Health
509 Olive Way Suite 1435
Seattle, Washington 98101
Phone: (425) 880-9880
also in North Seattle and Kirkland, Washington


Jaime A. Boero, MD, PhD
Marshfield Clinic Sleep Lab
Marshfield, Wisconsin

© 2018 Circadian Sleep Disorders Network
Last modified Sep 28, 2018
Problems: contact