Highlights
Age Groups Seen
- Infant 0-2
- Child 3-12
- Adolescent 13-17
- Young Adult 18-25
- Adult 26-64
- Older Adult 65+
Languages
- English
In-Network Plans
View All Accepted Plans (12)Gender
FemaleJohns Hopkins Affiliations:
- Johns Hopkins School of Medicine Faculty
About Ellen Mowry
Physician’s Office Fax
410-502-6736
Professional Titles
- Director, Division of Neuroimmunology and Neurological Infections
- Richard T. and Frances W. Johnson Professor of Neurology
- Director, MS Precision Medicine Center of Excellence
- Director, MS Experimental Therapeutics Program
Primary Academic Title
Professor of Neurology
Johns Hopkins Physician
Background
Dr. Mowry became interested in multiple sclerosis (MS) prior to beginning college and first performed MS research as an undergraduate biology major at Georgetown University. As a neurology resident at the University of Pennsylvania, she began her multiple sclerosis clinical research activities in conducting a study of visual dysfunction and quality of life in multiple sclerosis. During her fellowship at UCSF, Dr. Mowry evaluated prognostic factors in multiple sclerosis and examined health-related quality of life in multiple sclerosis, particularly as a marker of disease burden. She also earned a Master’s Degree in Clinical Research at UCSF. Dr. Mowry continued as a member of the faculty there before joining the Johns Hopkins Department of Neurology as an Assistant Professor in July, 2011; she received a joint appointment in Epidemiology in 2013. She was appointed as the inaugural Richard T. and Frances W. Johnson Professor in 2022.
Over the past several years, Dr. Mowry has worked primarily to perform epidemiologic investigations of multiple sclerosis (MS) risk and prognostic factors and has evaluated both genetic and environmental contributors. While she has had a major role in several such studies, her most significant work led to the identification of the association of vitamin D status with relapse and brain lesion risk in patients with MS (Annals of Neurology 2010, Annals of Neurology 2012, European Journal of Neurology 2015). She also conducted the first pilot study comparing gut bacterial populations in patients with MS and healthy individuals (Journal of Investigative Medicine 2014). She was recently funded to investigate the impact of vitamin D supplementation on the metabolomics profile in patients with MS compared to healthy controls. She enjoys designing and conducting clinical trials in MS and is the Principal Investigator of the Vitamin D to Ameliorate Multiple Sclerosis (VIDAMS) multicenter vitamin D trial (NCT01490502), which is sponsored by the National MS Society and a smaller multicenter pilot study investigating vitamin D pharmacokinetics in MS patients and healthy controls (NCT01667796). She is also the recipient of a Harry Weaver Award from the National MS Society, in which she is investigating the impact of intermittent calorie restriction in MS. Finally, as Director of the MS Experimental Therapeutics Program at Johns Hopkins, she assists colleagues with study design and helps oversee the conduct of MS clinical trials.
Centers and Institutes
X Profile
Clinical Trial Keywords
Multiple sclerosis; vitamin D; diet; microbiome
Clinical Trials Summary
NCT01490502
NCT02454907
NCT01667796
NCT02253264
Find a Clinical Trial
View all trials by this principal investigator.
Videos
Recent News Articles and Media Coverage
- Richard T. and Frances W. Johnson Professorship of Neurology Supports a New Generation of Physician-Scientist Leaders, JHU Giving (01/30/2023)
- MS4MS Funds Investigation into Multiple Sclerosis Therapies and Outcomes, JHU Giving (5/26/2022)
- Software Aims to Find Patterns in Outcomes for Multiple Sclerosis Patients Insight (July 2019)
- Dr. Ellen Mowry Talks of Clinical Studies into Vitamin D and MS, Multiple Sclerosis News Today (05/16/2016)
- A New Reason to Refill Your Coffee Cup Immediately, Cosmopolitan (03/03/2015)
- Vitamin D May Slow Multiple Sclerosis, Study Suggests, US News & World Report (01/20/2014)
Research Interests
Role of environmental factors in the risk and prognosis of MS, vitamin D, diet, microbiome
PubMed - Publications
Selected Publications
Mowry EM, Azevedo C, McCulloch CE, Okuda DT, Lincoln RR, Waubant E, Hauser SL, Pelletier D. Body mass index, but not vitamin D status, is associated with brain volume change in MS. Neurology 2018.
Mowry EM, Krupp LB, Milazzo M, Chabas D, Strober JB, Belman AL, McDonald JC, Oksenberg JR, Bacchetti P, Waubant E. Vitamin D status is associated with relapse rate in pediatric-onset multiple sclerosis. Ann Neurol 2010;67:618-624.
Mowry EM, Waubant E, McCulloch CE, Okuda DT, Evangelista AA, Lincoln R, Gourraud PA, Brenneman D, Owen M, Qualley P, Bucci M, Oksenberg J, Hauser SL, Pelletier D. Vitamin D status predicts new brain MRI activity in multiple sclerosis. Ann Neurol 2012;72:234-24.
Bhargava P, Steele S, Waubant E, Revirajan N, Marcus J, Dembele M, Cassard SD, Hollis BW, Crainiceanu C, Mowry EM. Multiple sclerosis patients have a diminished serologic response to vitamin D supplementation compared to healthy controls. Mult Scler J 2016;22:753-760.
Fitzgerald KC, Vizthum D, Barron B, Schweitzer A, Cassard SD, Kossoff E, Hartman AL, Kapogiannis D, Sullivan P, Baer DJ, Mattson MP, Appel LJ, Mowry EM. Effect of intermittent vs. daily calorie restriction on changes in weight and patient-reported outcomes in people with multiple sclerosis. Mult Scler Rel Disord 2018;23:33-39.
Additional Training
Master's in Clinical Research, UCSF, 2009
Locations
- Levi Watkins, Jr., M.D., Outpatient Center
- 601 North Caroline Street, Floor 5, Baltimore, MD 21287
- Get Directions
- phone: 410-955-9441
- fax: 410-955-6402
Expertise
Education
- Graduate School: University of California San Francisco School of Medicine, 2009
- Fellowship: University of California San Francisco School of Medicine, Neurology, 2009
- Residency: Hospital of the University of Pennsylvania , Neurology, 2007
- Medical Education: University of Rochester School of Medicine, MD, 2003
Board Certifications
- Neurology: American Board of Psychiatry and Neurology, 2008
Insurance
- Aetna
- CareFirst
- Cigna
- First Health
- Geisinger Health Plan
- HealthSmart/Accel
- Johns Hopkins Health Plans
- MultiPlan
- Pennsylvania's Preferred Health Networks (PPHN)
- Point Comfort Underwriters
- Private Healthcare Systems (PHCS)
- Veteran Affairs Community Care Network (Optum-VACCN)
Ratings & Reviews
4.9 out of 5
47 ratings, 26 reviewsThe Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.
- 5 out of 5 starsReviewed on 3/11/2026
No complaints with Dr Mowry, she is amazing. Despite being told to arrive 30 minutes before my appointment time, I still hadn't had my vitals done before my appointment so I had to get that done after and I then still waited a good 15-20 minutes just for that. Need to work on that part of the visit.
- 5 out of 5 starsReviewed on 2/25/2026
Dr. Mowry is a wonderful doctor. She truly cares about me and my condition, and ensures that she has done all of the needed tests to help my condition. She explains all the steps and tests performed up to this point and what other procedures if any are needed. Ahe listens to my symptoms, and she and Martin answers all of my questions. Then they recap and go over next steps and or future appointments. Dr. Mowry and her team are all excellent!
- 5 out of 5 starsReviewed on 1/28/2026
Dr Mowry is friendly, knowledgeable, and responds quickly to all questions between appointments -very helpful.
- 5 out of 5 starsReviewed on 12/17/2025
Dr.Mowry goes above and beyond in ensuring my medical results are accurately communicated to me. I trust her recommendations.
- 5 out of 5 starsReviewed on 12/17/2025
Dr. Mowry has watched over me for over a decade. Items addressed have included PML, MS. High blood pressure, A1C and poor lifestyle issues. Looking at the total picture has been extremely helpful. Her guidance has significantly improved my health. Dr. Mowry is the best!!!
- 5 out of 5 starsReviewed on 12/15/2025
Wonderful experience with Dr. Mowry. Spent so much time listening and hearing my story and providing helpful recommendations and answering all questions.
- 5 out of 5 starsReviewed on 12/10/2025
Excellent
- 5 out of 5 starsReviewed on 11/19/2025
Dr Mowry makes suggestions that are easy for me to understand.8
- 5 out of 5 starsReviewed on 11/19/2025
Dr. Mowry is absolutely THE BEST!!! She both a phenomenal doctor and person!!!I recently had a serious surgical procedure, unrelated to Dr. Mowry's specialty; however, she took the time to stop by my room and check in on me, which was a super nice surprise!!!
- 5 out of 5 starsReviewed on 11/19/2025
Dr. Mowry and her team are very knowledgeable and I trust their expertise. She listens to my concerns and wants to help me get better . She truly is dedicated to helping me get better during this difficult time.
- 5 out of 5 starsReviewed on 11/5/2025
I wish wait times were not tgat long.
- 5 out of 5 starsReviewed on 10/29/2025
Dr. Mowry & [staff] are AWESOME!!
- 5 out of 5 starsReviewed on 10/15/2025
I love Dr. Mowry and count her as one of my blessings!
- 5 out of 5 starsReviewed on 10/1/2025
Dr. Mowry and her team provide excellent care, they never rush the appointment and provide ample communication throughout the visit as well as in their follow up afterwards.
- 5 out of 5 starsReviewed on 9/17/2025
This was the first time I saw Dr. Mowry in person since 3021. However, I feel like she is always there for me no matter what I am experiencing in the treatment of my MS. She always follows up with me after my Ocrevus treatments to see how I am doing. She genuinely listens to me and truly cares. This has not always been my experience with doctors but I truly appreciate Dr. Mowry's professionalism tempered by empathy. Her patient education Is above the rest. Truly outstanding!
- 5 out of 5 starsReviewed on 9/3/2025
Great
- 5 out of 5 starsReviewed on 9/3/2025
Dr. Mowry is the absolute best! I look forward to my visits with her. She is a great listener and truly cares about her patients. I appreciate everything she continues to do for MS research.
- 5 out of 5 starsReviewed on 7/23/2025
Great service
- 5 out of 5 starsReviewed on 7/16/2025
The very best very patient and professional
- 5 out of 5 starsReviewed on 7/16/2025
Dr. Mowry is extremely knowledgeable and thorough and follows up on my concerns.
- 5 out of 5 starsReviewed on 7/2/2025
Excellent and always caring / show concerns for the patient.
- 5 out of 5 starsReviewed on 6/25/2025
Dr. Mowry is excellent. I appreciate how willing she is to listen to my concerns and is so proactive about placing consults for therapy, etc to help maintain my functional abilities. She also did a great job of teaching the medical student during our visit.
- 5 out of 5 starsReviewed on 5/28/2025
Excellent patient care
- 5 out of 5 starsReviewed on 5/7/2025
Dr. Mowry is awesome!!! Full faith and confidence in her knowledge and ability.
- 5 out of 5 starsReviewed on 4/30/2025
Dr Mowry looks after not just my MS but the other issues that can negatively impact my MS and the entirety of my health.
- 2 out of 5 starsReviewed on 4/30/2025
She's always great but I never saw her this visit