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Setting the Platinum Standard in Sleep Medicine

Patient Sleep Questionnaire

It only takes a few minutes to complete our online sleep survey. Help us learn more about the public's sleep habits!

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Ask Our Sleep Expert

You have questions and we have answers about sleep. Dr. Jerald H. Simmons, MD is Triple-Board Certified in Neurology, Epilepsy and Sleep Disorders Medicine A nationally recognized leader in Sleep Disorders with over 20 years of experience in academic and private settings.

Sleep Disturbance Information

Many situations can cause disturbances in your sleep patterns, and often simple lifestyle changes can dramatically help to improve your sleep quality. But while most people experience occasional periods of sleep disturbance, many others suffer from disorders such as chronic Insomnia, Restless Legs Syndrome, Excessive Daytime Sleepiness, and Sleep Apnea. In these cases, your doctor may recommend that you see a specialist in order to diagnose and treat your disorder.

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Breathing through a narrow airway causes a vacuum that pulls on the throat’s soft tissue causing it to vibrate, which creates the snoring sound.

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Parasomnias refer to a variety of disruptive sleep-related events that occur only or predominantly during the main sleep period.

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This condition is characterized by uncomfortable, unsettled, restless sensations in the legs or feet usually while lying in bed at night before going to sleep.

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Excessive daytime sleppiness is a tendency to sleep at inappropriate times regardless of activity or circumstance.  

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Difficulty falling asleep is known as insomnia and can be caused by many different factors.

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It has recently become clear that there seems to be an association between sleep disturbances and ADHD in children and adults.

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Julie Bernabe-Samoro

All of them are so friendly and very helpful. I have been their patient for 10 years and they help me with my sleep apnea! My supplies are always in time and they are always there when I need them. You can trust them with your sleep disorders! Like me, I can not sleep with out them! I highly recommend their specialties! Don’t hesitate to ask for their help.

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Janice Schramm

Maggie has gone out of her way to help me get the medicine I need and to be able to figure out my sleep issues. She is very knowledgeable and thorough. I would highly recommended her!

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Kathy Hudson

CSMA helped to diagnose my narcolepsy which answered many questions I had regarding my health. They also monitor my sleep apnea. The medical professionals there take good care of me. ML is also very patient with me. ‘Nuff said!

Professional Information

Most people have a primary care physician, particularly with current health care plans. Unfortunately, most of these physicians have not received any training on identifying or treating sleep problems. If the physician were to add just a few screening questions related to sleep to their routine screening assessment, millions of Americans would be guided into a systematic pathway which could improve their sleep ills.

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Breathing through a narrow airway causes a vacuum that pulls on the throat’s soft tissue causing it to vibrate, which creates the snoring sound.

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REM sleep behavior disorder (RBD) is a sleep disorder in which a patient will physically act out their dreams unknowingly while asleep.

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Snoring and sleep apnea are extremely common, and patients with these conditions require proper evaluation through diagnostic sleep testing.

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Involuntary grinding and clenching teeth at night, known as Nocturnal Bruxism. CSMA can help you resolve this issue and sleep soundly.

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Join one of our upcoming education events to grow your sleep education knowledge to enhance your patient support abilities.

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To help you develop a full understand of sleep medicine and clinical diagnostics, CSMA has developed a Professional Resource Library.

Meet The Team

Dr. Jerald H. Simmons

Jerald H. Simmons, MD

Jerald H. Simmons, M.D. is Triple Board-Certified in Neurology, Epilepsy and Sleep Medicine. A graduate of Ohio State University, he did his Neurology residency at Washington University, Sleep Medicine Fellowship at Stanford University and Epilepsy Fellowship at University of California. He began his professional career as Assistant Professor of Neurology at UCLA while co-directing the UCLA Sleep Disorders Center and directing the Clinical Neuro-physiology lab at Olive View UCLA Medical Center. While there he trained Fellows, taught residents and medical students. In 1999 he was recruited to the Houston area by the Sadler Clinic where he established his sleep disorders practices and continued to conduct clinical research. In 2006 he founded and continues to direct Comprehensive Sleep Medicine Associates, providing clinical services to patients from infants to elderly. Education continues to be an important aspect of his career, having trained medical students, residents and fellows in sleep medicine. In 2004 he established the Sleep Education Consortium, a 501c3 non-profit organization that holds continuing education conferences with a mission to enhance the knowledge of healthcare professions on sleep disorders. He has been a leader in enhancing the collaboration between medical and dental fields, implementing new approaches that enhance patient care. New areas of focus include the assessment and management of individuals suffering from head injuries. He is leading up an effort that will hopefully provide new improved aspects to the care of these patients.

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Maggie G. Lavender,
RN, MSN, FNP-C

Maggie Lavender is a Board-Certified Family Nurse Practitioner licensed in Texas with specialization in Sleep Disorders Medicine and Neurology. She attended Louisiana State University Health Sciences Center, where she received her Bachelor of Science in Nursing. She began her career working in a pediatric intensive care and burn unit. She later moved to Houston, Texas and continued her career in a neuroscience intensive care unit at a level one trauma center. She then completed her Master of Science in Nursing and Post-Master’s Emergency Nurse Practitioner Certificate simultaneously at the University of Texas Health Science Center. Her Nurse Practitioner career began in Houston, Texas at Comprehensive Sleep Medicine Associates (CSMA) alongside Dr. Jerald Simmons, beginning in 2012. Maggie has evolved to be a recognized Nurse Practitioner specialist on a national level, and currently functions as a consultant and lecturer on the management of narcolepsy patients. She is currently practicing again at CSMA and is specializing in comprehensive sleep disorders, neurology, and epilepsy.

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Stormy Lopez, FNP

Bio coming soon...... .....

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Olivia Hua, RN,MSN, FNP-C

Olivia Hua is a Board-Certified Family Nurse Practitioner licensed in Texas. She obtained her Bachelor's and Master’s Degrees in Nursing at Texas Woman’s University. She began her career in 2000 working in the medical-surgical unit and neonatal intensive care unit. Her nurse practitioner career began in 2007 working in Neuro-Interventional Radiology at MD Anderson Cancer Center. In 2016, she started working at Comprehensive Sleep Medicine Associates (CSMA) alongside Dr. Jerald Simmons. She is specialized in treating Obstructive/Central Sleep Apnea, UARS, narcolepsy, insomnia, and seizures. She also participates in several sleep-related clinical research. She and her family reside in Sugar Land, Texas. She is fluent in English, Cantonese and Mandarin. In her spare time, Ms. Olivia enjoys traveling and volunteering at her daughter’s artistic swimming club.

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Jordan Jarreau, MSN, APRN, FNP-C

Jordan J. Manganello MSN, APRN, FNP-C is a Board-Certified Family Nurse Practitioner licensed in Texas and Louisiana. She was born in Louisiana and attended Louisiana State University Health Sciences Center, where she received her Bachelor of Science in Nursing. She began her career working in a neuroscience intensive care unit. She then completed her Master of Science in Nursing at the University of Alabama at Birmingham. Following her graduation, she moved to Houston and began working at Comprehensive Sleep Medicine Associates (CSMA).  In her free time, she enjoys spending time with her family and friends, gardening, reading, and playing with her dogs.

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Catherine Mira, MSN, APRN, FNP-C

Catherine Mira, MSN, RN, FNP-C is a Board-Certified Family Nurse Practitioner licensed in Texas with a specialization in Sleep Disorders Medicine and Neurology. She attended UT Health Cizik School of Nursing, where she received her Bachelor of Science in Nursing. She spent most of her time as a registered nurse in the leukemia and transitional end-of-life unit at MD Anderson. She then returned to UT Health to obtain her Master of Science in Nursing. Her Nurse Practitioner career began in medical aesthetics performing neurotoxins and dermal fillers. She started at Comprehensive Sleep Medicine Associates (CSMA) alongside Dr. Jerald Simmons, beginning in 2023. Catherine’s passion for nursing from the influence of her parents and older sister who also are in the medical field. In her spare time, she enjoys trying new foods and exercising.

Current CSMA Patients

Our mission is to provide a comprehensive approach for high-quality-care of our patients, ranging from newborns to the elderly. If you're a current CSMA patient, you can manage your information and order DME supplies online. Need assistance? Contact our office!

Upcoming Sleep Education Events

The Sleep Education Consortium, Inc. is a 501(c)3 Non-Profit Organization dedicated to providing educational opportunities for medical professionals and the general public on sleep and sleep disorders. The SEC provides educational programs for the general public through community lectures, websites and digital multimedia, as well as professional education for dentists and physicians through continuing medical education conferences.

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CSMA Sleep Partners

The CSMA works closely with top medical and educational sleep experts to ensure we are always learning and sharing to improve global sleep medicine knowledge.
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