Dr. Marcus Jennings, MD
Sleep Medicine Specialist
391.6 mi · 196 Thomas Johnson Dr, Ste. 235, Frederick, MD 21702
At a glance
4.92 stars (25 reviews)
98% are satisfied with this provider ·
Accepts 38 insurances
Aetna, BlueCross BlueShield, Cigna, Medicare, UnitedHealthcare, more+ ·
Works at Sleep Services of Maryland
3 office locations
Speaks English
4.92
25 reviews
Bedside manner
5.0
Wait time
4.7
Recent reviews
It was a great experience from beginning to end. The doctor was awesome and relatable. Made quick decisions and a good sounding plan.
April 11, 2025William V.Verified patient
Dr. Marcus was very professional and polite. He knew what he was talking about and was clear and understandable.
The room was clean, organized, and de-cluttered. The office waiting area was just as nice. The main commons and elevators of the building were also very clean. The lady at the front desk was very polite and clear.
This was an excellent building and office and the staff were above and beyond.
I highly recommend this place and its doctors.
April 3, 2025Sasha D.Verified patient
Office locations
1
1.
Sleep Services of Maryland
379.3 mi · 196 Thomas Johnson Dr, Ste. 235, Frederick, MD, 21702
2
2.
Sleep Services of Maryland
391.6 mi · 19735 Germantown Rd, Ste. 305, Germantown, MD, 20874
3
3.
Sleep Services of Maryland
423.6 mi · 8186 Lark Brown Road, Suite 201, Elkridge, MD, 21075
Marcus Jennings does not participate in Zocdoc to offer online booking at this time
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In-network insurances
Aetna
BlueCross BlueShield
Cigna
Medicare
UnitedHealthcare
Aetna
BlueCross BlueShield
Cigna
Medicare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Sleep apnea
Upper respiratory Infection (URI)
Sleep apnea
Upper respiratory Infection (URI)
More about Dr. Marcus Jennings, MD
Marcus Jennings, MD, MSPH, is a detail-oriented, highly motivated sleep specialist at Sleep Services of Maryland, LLC, in Rockville, Germantown, Frederick, and Columbia, Maryland. Dr. Jennings is board-certified in family medicine and board-eligible in sleep medicine, with nearly a decade of experience using evidence-based methods to help patients sleep better.
Dr. Jennings specializes in treating obstructive sleep apnea (OSA), insomnia, narcolepsy, and other sleep disorders. He earned bachelor’s degrees with honors in biology and chemistry at Xavier University of Louisiana in New Orleans. He completed a master’s degree in public health at Tulane University’s School of Public Health and Tropical Medicine (TUSPH), also in New Orleans.
He attended the University of Tennessee’s Health Science Center College of Medicine in Memphis, Tennessee. He completed medical school with honors at Xavier University School of Medicine in Woodbury, New York.
Dr. Jennings completed a residency in family medicine at Louisiana State University Health Science Center in New Orleans, where he was chief resident. He completed a fellowship in sleep medicine at MedStar Georgetown University Hospital in Washington, DC.
Dr. Jennings has participated in many research studies and is a member of the American Academy of Sleep Medicine, the American Academy of Family Physicians, and several other professional organizations.
He enjoys using innovative technologies and treatments to help patients sleep soundly, feel better, and become the healthiest versions of themselves. Dr. Jennings welcomes new and existing patients to Sleep Services of Maryland, LLC, and looks forward to caring for them.
Education & experience
Education
Medical School - Xavier University School of Medicine Aruba, Doctor of Medicine
MedStar Georgetown University Hospital, Fellowship in Sleep Medicine
LSU Health Sciences Center School of Public Health, Fellowship in Family Medicine
Tulane University, Master's in Public Health
Xavier University of Louisiana (Bachelor's)
Practice
Sleep Services of Maryland
Certifications
American Board of Family Medicine
Background
Languages spoken
English
Gender
Male
NPI number
#1114292588
Marcus Jennings does not participate in Zocdoc to offer online booking at this time
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Dr. Alvia Sabahat, MD
Family Physician
4.6070 reviews
6 mi16254 Frederick Rd, Gaithersburg, MD, 20877
4.6070 reviews
6 mi16254 Frederick Rd, Gaithersburg, MD, 20877
Amanda Mullins, NP, MSN, PMHNP, PMHNP-BC
Adult Psychiatric & Mental Health Nurse Practitioner
4.7434 reviews
Rockville, MD, 20850
Offers telehealth
4.7434 reviews
Rockville, MD, 20850
Offers telehealth
Brittany Bascombe, LCSW - C
Psychotherapist
5.0014 reviews
6.5 mi9601 Blackwell Rd, # 275, Rockville, MD, 20850
Offers telehealth
5.0014 reviews
6.5 mi9601 Blackwell Rd, # 275, Rockville, MD, 20850
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Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.92
Wait time
4.71
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
25 reviews
Most relevant
Excellent doctor and excellent medical facility. Can't recommend them more highly.
September 18, 2025David P.Verified patient
Very friendly staff and efficient
August 12, 2025Timothy T.Verified patient
Thoroughly explained my options for treatment
August 12, 2025Jacqueline M.Verified patient
Great visit but the office was way too hot!
April 23, 2025Richard A.Verified patient
It was a great experience from beginning to end. The doctor was awesome and relatable. Made quick decisions and a good sounding plan.
April 11, 2025William V.Verified patient
Dr. Marcus was very professional and polite. He knew what he was talking about and was clear and understandable.
The room was clean, organized, and de-cluttered. The office waiting area was just as nice. The main commons and elevators of the building were also very clean. The lady at the front desk was very polite and clear.
This was an excellent building and office and the staff were above and beyond.
I highly recommend this place and its doctors.
April 3, 2025Sasha D.Verified patient
Dr. Jennings was fantastic! He was super knowledgeable and he was also able to provide auditory examples of different sleep-related breathing issues.
Together we thoroughly and carefully reviewed my symptoms and ruled certain issues out.
He also carefully reviewed the results from a sleep study I had done a month before and helped me better evaluate each recommendation. I had no idea some of the recommendations required invasive and painful surgery. Glad we eliminated that option.
He also drew the connection between how weight gain contributes to my sleep related breathing issues. He also helped me understand how the specifics of my tongue compared to my jaw size impact my risk for sleep related breathing issues.
More than 1 year agoShane L.Verified patient
The provider was prompt and very professional.
January 30, 2025Patricia W.Verified patient
October 29, 2025Amit S.Verified patient
October 6, 2025Rebecca B.Verified patient
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September 22, 2025Laura H.Verified patient
September 17, 2025Samuel L.Verified patient
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July 8, 2025Fidel C.Verified patient
June 26, 2025David A.Verified patient
June 14, 2025Cristin B.Verified patient
May 21, 2025Veronica J.Verified patient
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What practice does Dr. Marcus Jennings work with?
Dr. Marcus Jennings works with Sleep Services of Maryland.
Where is Dr. Marcus Jennings's office located?
Dr. Marcus Jennings has 3 office locations, including in Germantown, Frederick, and Elkridge, view full addresses on Dr. Jennings's profile.
Which board certifications does Dr. Marcus Jennings have?
Dr. Marcus Jennings is certified by American Board of Family Medicine.
What are common reasons for patients to see Dr. Marcus Jennings?
Dr. Marcus Jennings frequently sees patients for Insomnia, Obstructive Sleep Apnea (OSA), Sleep Problems, Sleep Studies, and Snoring. You can see other visit reasons for Dr. Marcus Jennings on their profile.
What languages does Dr. Marcus Jennings speak?
Dr. Marcus Jennings speaks English.
How do patients rate Dr. Marcus Jennings in reviews?
25 patients have reviewed Dr. Marcus Jennings. The overall rating for this doctor is 4.92/5. They have a 5/5 rating for bedside manner and a 4.71/5 rating for wait time. You can read individual reviews and ratings on their profile.