
Highlights
Age Groups Seen
- Young Adult 18-25
- Adult 26-64
- Older Adult 65+
Languages
- German
- English
In-Network Plans
View All Accepted Plans (12)Gender
MaleJohns Hopkins Affiliations:
- Johns Hopkins School of Medicine Faculty
About Tom W. Donner
Professional Titles
- Director, Johns Hopkins Diabetes Center
Primary Academic Title
Associate Professor of Medicine
Johns Hopkins Physician
Background
Dr. Donner's clinical and research interests have focused on the prevention of complications in patients with type 1 and 2 diabetes. For 6 years, he was the Associate Medical Director of the Joslin Diabetes Center affiliate at the University of Maryland, and then Medical Director from 2004 - 2010. After joining the faculty at Johns Hopkins University in 2010, his clinical and research interests became fully dedicated to diabetes. He became the Director of The Johns Hopkins Diabetes Center in 2011. He has been a clinical investigator in a number of NIH- and industry-funded diabetes research trials. Dr. Donner was a co-PI in the NIH-funded Veterans Affairs Implantable Insulin Pump Study, a Co-PI on the NIDDK-funded Diabetes Control and Complications Trial / Epidemiology of Diabetes Intervention and Complications (DCCT / EDIC) Study for 16 years, and Co-PI for the Bypass Angioplasty Revascularization Investigation 2 Diabetes (BARI 2D) for 7 years. Recently, he has served as PI for the Durable-response therapy Evaluation For Early or New-onset type 1 Diabetes (DEFEND-1). Dr. Donner is currently collaborating with Dr. Abdel Hamad in Immunology on preventing B-regulatory cell apoptosis using a novel monoclonal antibody targeting the presumptive apoptotic factor. This antibody prevents the development of type 1 diabetes in non obese diabetic mice. Dr. Donner is the PI for Johns Hopkins for TrialNet, a multicenter, international consortium of investigators studying ways to prevent Type 1 diabetes and preserve insulin secretion in individuals with newly diagnosed Type 1 diabetes. He is also a PI for a study investigating FIAsp, a faster-acting insulin aspart in subjects with type 1 diabetes, and is working with investigators at the Johns Hopkins School of Engineering on an implantable insulin pump which delivers insulin intravenously.
Clinical Trial Keywords
Type 1 diabetes, immunotherapy, stem cell therapy
Clinical Trials Summary
1. VA Cooperative Study #334A (Hamilton PI) 3/92 - 10/94
The Veterans Affairs Implantable Insulin Pump Study
Role: Co-Investigator, 5% effort
2. N01-DK-6-2203 (Counts PI) 3/95 – 7/10
The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications
Role: Co- Investigator
3. 5U01H1061744 7/1/01 – 6/1/09
Bypass Angioplasty Revascularization Investigation 2 Diabetes (BARI 2D)
Role: Co- Investigator
4. 1R01AI099027-01 NIH/NIAID Hamad (PI) 03/01/13 - 03/31/18 03/31/18
Mechanisms of Fas Ligand control of insulitis initiation in autoimmune diabetes
Role: Co-investigator
5. NIDDK Donner (PI) 05/13 – present
The Natural History Study of the Development of Type 1 Diabetes
6. Viacyte, Inc. Donner PI 2/18-12/21
An Open-Label, First-In-Human, Study Evaluating the Safety, Tolerability, and Efficacy of VC-02™ Combination Product in Subjects with Type 1 Diabetes Mellitus and Hypoglycemia Unawareness
7. Diamyd Medical Donner PI 3/24 - present
A Phase III, Randomized, Double-blind, Placebo-controlled, Multicenter Trial to Evaluate the Efficacy and Safety of Diamyd® to Preserve Endogenous Beta Cell Function in Adolescents and Adults with Recently Diagnosed Type 1 Diabetes, Carrying the Genetic HLA DR3-DQ2 Haplotype
Find a Clinical Trial
View all trials by this principal investigator.
Contact for Research Inquiries
Baltimore, MD 21205
Phone: (410) 614-0905
apage20@jhmi.edu
Research Interests
Immunotherapy, Insulin Therapy, Type 1 Diabetes
Lab Website
Thomas W. Donner Lab
- The Thomas W. Donner Lab focuses on type 1 diabetes, with an emphasis on ways to improve the management of diabetes, and ways to prevent, slow beta cell loss and cure type 1 diabetes. We're currently collaborating with Dr. Abdel Hamad to investigate the immune "X" cell discovered in his lab that appears to play a critical role in the autoimmune destruction of pancreatic beta cells leading to the development of type 1 diabetes. An antibody from that cell call the X monoclonal antibody has been shown to reverse diabetes in the NOD mouse. We also participate in Trial Net, a multi-center, international consortium of researchers studying ways to prevent type 1 diabetes and preserve insulin secretion in people who have been recently diagnosed with the chronic condition.
Research Summary
Dr. Donner's clinical and research interests include aggressive management of type 1 and type 2 diabetes, preserving beta cell function in patients with new onset type 1 diabetes, and the prevention of diabetes complications.
Memberships
- American Diabetes Association
Locations
- Levi Watkins, Jr., M.D., Outpatient Center
- 601 North Caroline Street, Floor 2, Baltimore, MD 21287
- Get Directions
- phone: 410-955-9270
- fax: 410-367-2042
- Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
- 10751 Falls Road, Falls Concourse STE 412, Lutherville, MD 21093
- Get Directions
- phone: 410-955-9270
- fax: 410-367-2042
Expertise
Education
- Residency: University of Maryland Medical Center, Internal Medicine, 1994
- Fellowship: University of Maryland Medical Center, Endocrinology, 1993
- Residency: University of Maryland Medical Center, Internal Medicine, 1989
- Medical Education: University of Virginia School of Medicine, MD, 1986
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 1989
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
5 out of 5
78 ratings, 36 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 3/19/2026
Positive, supportive, knowledgeable about condition
- 5 out of 5 starsReviewed on 2/26/2026
Excellent!
- 5 out of 5 starsReviewed on 2/26/2026
Dr Donner has always responded very quickly to any mychart question I have asked him. He cares a great deal about his patients. I am lucky to have him
- 5 out of 5 starsReviewed on 2/24/2026
The best ever, anywhere!
- 5 out of 5 starsReviewed on 2/17/2026
Dr Donner is the best ever!
- 5 out of 5 starsReviewed on 1/27/2026
Dr Donner is excellent
- 5 out of 5 starsReviewed on 1/27/2026
Dr Donner has always been very helpful and kind. I appreciate the care given
- 5 out of 5 starsReviewed on 1/27/2026
Dr. Donner is always on time, courteous and knowledgable. We trust him implicitly.
- 5 out of 5 starsReviewed on 1/27/2026
Dr Donner is an excellent, attentive, considerate physician, with vast experience treating diabetes.
- 5 out of 5 starsReviewed on 1/22/2026
Dr Donner is the best endocrinologist! I can't imagine seeing anyone else.
- 5 out of 5 starsReviewed on 1/20/2026
He is the best!!
- 5 out of 5 starsReviewed on 1/15/2026
Excellent provider. Very knowledgeable of the Type 1 Diabetes.
- 5 out of 5 starsReviewed on 1/6/2026
What a dream to have (one of?) the most knowledgeable diabetic specialists in the world provide such patient, concerned attention to me as a patient over a period of decades.
- 5 out of 5 starsReviewed on 11/18/2025
Always willing to listen and explain
- 5 out of 5 starsReviewed on 9/25/2025
Dr Donner is truly outstanding, the very best!
- 5 out of 5 starsReviewed on 9/23/2025
The best in the World f
- 5 out of 5 starsReviewed on 9/9/2025
Best Doctor ever ! Very through exam. Ask all the right questions. Took blood pressure twice to get correct reading. Dr. Donner is GREAT.
- 5 out of 5 starsReviewed on 9/2/2025
Excellent communication and listening
- 5 out of 5 starsReviewed on 8/28/2025
Dr Donner is fantastic. No doubt he is also very busy. It would have been helpful to understand that he was delayed as I arrived on time yet had to wait an hour before seeing him.
- 5 out of 5 starsReviewed on 8/21/2025
Excellent provider
- 2 out of 5 starsReviewed on 8/21/2025
He is very kind and respectful. Although, I often feel like my concerns are hurried through and at times not fully addressed.
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Donner was exceptional! Very experienced, knowledgeable and kind. So glad we connected with him.
- 5 out of 5 starsReviewed on 8/19/2025
Excellent as always.
- 5 out of 5 starsReviewed on 8/7/2025
Excellent, thorough, innovative
- 5 out of 5 starsReviewed on 7/10/2025
Very informative
- 5 out of 5 starsReviewed on 7/10/2025
Dr Donner is a smart doctor and an exceptional Human Being. He understands and treats the complexity of my disease.
- 5 out of 5 starsReviewed on 7/8/2025
Dr. Donner is an excellent doctor.
- 5 out of 5 starsReviewed on 7/3/2025
Excellent, thorough, thoughtful.
- 5 out of 5 starsReviewed on 6/17/2025
Excellent. Very educated
- 5 out of 5 starsReviewed on 5/29/2025
Thomas Donner is excellent in his field
- 5 out of 5 starsReviewed on 5/23/2025
Dr. Donner is kind, thorough, knowledgeable, and a highly skilled practitioner and diagnostician. He is truly excellent in every way and the very best!
- 5 out of 5 starsReviewed on 5/6/2025
Dr Donner is always an excellent physician. He never makes me feel rushed even though I know there are many other patients waiting to be seen
- 5 out of 5 starsReviewed on 5/6/2025
Dr Thomas Donner is an outstanding Doctor. He is thorough and provides exceptional care.
- 5 out of 5 starsReviewed on 4/25/2025
Goes way beyond good in providing care. Best of my six specialists
- 5 out of 5 starsReviewed on 4/15/2025
Dr Donner is fantastic. He had studied my chart before my appointment. He said everything in speak that I could easily understand and comprehend.
- 5 out of 5 starsReviewed on 4/15/2025
Excellent