Benjamin O’Donnell, MD
Physician, Associate Professor
Endocrinology, Diabetes & Metabolism
Make an appointment
614-685-3333
Accepting new patients
Conditions and expertise
- Glucagon-Like Peptides
- Weight Loss
- Insulin Infusion Systems
- Hypoglycemia
- Weight Reduction Programs
- Diabetes Mellitus, Type 2
Locations
- Outpatient Care East
- Martha Morehouse Outpatient Care
Academic information
Department: Internal Medicine
About
- Gender
- Male
Biography
I am a board-certified endocrinologist at The Ohio State University Wexner Medical Center. I specialize in treating complex endocrine disorders, including diabetes, thyroid disease, and metabolic bone conditions.
My patients can rely on me for comprehensive, compassionate care and clear communication. I collaborate with a multidisciplinary team to develop personalized treatment plans that support long-term health and quality of life.
In addition to my clinical responsibilities, I serve as an associate professor of Internal Medicine at The Ohio State University College of Medicine, where I am passionate about education and advancing endocrine care.
Highlights
- Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016-2019
Conditions and expertise
- Addison Disease
- Adrenal Gland Diseases
- Adrenocortical Adenoma
- Bariatric Surgery
- Bone Diseases
- Diabetes Mellitus
- Diabetes Mellitus, Type 1
- Diabetes Mellitus, Type 2
- Endocrinology
- Glucagon-Like Peptides
- Goiter
- Hypercalcemia
- Hyperparathyroidism
- Hypoglycemia
- Hypoparathyroidism
- Insulin Infusion Systems
- Metabolic Syndrome X
- Osteopenia
- Osteoporosis
- Parathyroid Diseases
- Pituitary Diseases
- Polycystic Ovary Syndrome
- Pseudohypoparathyroidism
- Rickets
- Thyroid Diseases
- Thyroid Nodule
- Thyroiditis
- Weight Loss
- Weight Reduction Programs
Locations
Please note: Not all physicians schedule patients at each listed location.
Credentials
Education
- Fellowship - Endocrinology, Diabetes and Metabolism
- Brown University School of Medicine, Providence, RI, United States
7/1/2011 - 6/30/2013 - Residency - Internal Medicine
- Brown University School of Medicine, Providence, RI, United States
7/1/2007 - 6/30/2010 - Doctor of Medicine (MD)
- University of Toledo College of Medicine, Toledo, OH
8/1/2003 - 6/30/2007
Certifications
-
American Board of Internal Medicine-Endocrinology, Diabetes & Metabolism
10/1/2013 -
American Board of Internal Medicine
8/25/2010
Ratings and reviews
The overall patient satisfaction rating is an average of all patient responses to the six doctor communication related questions shown below from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey. For additional information about the patient satisfaction survey, please visit our Patient Satisfaction Survey page.
The comments are submitted by patients and reflect their view and opinions. The comments are not endorsed by and do not necessarily reflect the views of Ohio State Wexner Medical Center.
249 Patient Satisfaction Reviews
Patient Comments
Consulting and Related Relationships
At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.
As of 11/3/2025, Dr. O'Donnell has reported no relationships with companies or entities.
The provider was listen me carefully and treat me gentle.
I like my doctor very much he always shows respect concern and takes time with me and addresses all my concerns
All good.
The best
Igood
Good
He's the best! Always so friendly, up beat, caring, etc. 10/10!
The doctor and his assistant doctor took their time and did everything they needed to do to see what was best for what I was there for and went through everything with me and listened to all my concerns and explained everything to me very well to me about my condition and took their time and didn't rush through the visit
Excellent
Doctor was very attentive and listened to what I had to say.
Absolutely LOVED this provider. A Resident saw my first. He was wonderful and explained everything. Dr O'Donnell came in after the Resident. He explained everything in great detail. He offered several options. He laughed and made myself and my husband comfortable.
Great experience
Excellent.
Always have alot to go over lots of issues s as nd lots off ?s on my part.
Very trusted, knowledgeable, personable
He is very good
Very nice polite personable knowledgeable and explains things so it is easy for you to understand.
Dr. O'Donnell was excellent as always!He's very easy to talk to and really cares about my concerns.
I was pleased with our interaction. Though my driver needs morning appointments so we had to make a change in doctor,however, he is a very easy doctor to communicate with.
Dr.O'Donnell is outstanding, patient and caring!
My doctor is like family. I adore him
My provider was professional and we talked about my last visit and follow-up. My provider was interested in my daily being and if I had my medications.
Listened to all my concerns and treated me with respect
Dr. O'Donnell is one of only a few OSU doctors who is willing to consider the whole person or all medical issues as he tackles an Issue within his specialty. This is excellent problem-solving/diagnosis.
Great visit......
Dr. O'Donnell is always kind and knowledgeable about my condition.
Always been a great experience. Look forward to our appointments. Very knowledgeable and easy to talk with. I have recommended him to several. A great Doctor!
Very cool. very thorough and detailed analysis of the conditions of my current situation.
Excellent.
Very Knowledgeable and Compassionate
Dr. Is always friendly, informative, and willing to change medicine as needed to try to get my labs to be better.
Everyone is nice
Dr O'Donnell is the best physician I have had. I have been a patient of his for almost 10 years. Even though I only see him once a year for routine check, I feel like he personally knows and cares for me. He always asks good questions or shares suggestions to help better my health. I would be devastated if he left Ohio state!
My physician Is great, as was the nurse. Very personable, like talking to an old friend.
Amazing doctor
5 Star
Dr O'Donnell is just plain excellent the best
The provider was extremely friendly and approachable. He made me feel very comfortable. I felt that he was genuinely concerned about my experience. I would recommend him and his staff to family and friends.
One of the best doctors I have seen. He is very knowledgeable, very easy to talk to, he takes the time needed, and he communicates excellently!
Excellent communication!
Recognized progress and provided encouragement
Dr. O'Donnell is friendly & genuinely interested in my progress and overall health.
Dr. O'Donnell was very understanding and a caring person.
My doctor is absolutely wonderful and I have been seeing him for many years and he is the best doctor I have on my team.
I appreciate the time he took to make sure I was comfortable. The way him and his team work together to make sure I was comfortable and make sure they got what they needed. So I would not have to go through having to take a 3 biopsy.
Doctor O'Donnell listens and gives easy to understand answers. Excellent easy to follow instructions.!
Very friendly and kind.
First time I met him and I was very impressed with how he had reviewed my history. He answered all my questions in a way that I could understand. Very personable. I felt he didn't hurry me at all .
My provider was awesome. He is just so thorough and very enlightening. He gives great insight and he truly seems to care.
He is ALWAYS up on my medical history and very kind He listens to my concerns.
He's a careful listener and had clearly read my records before entering the office. I felt he was well prepared and took his time answering my questions. My only complaint is how long it to to get my first appointment and to have the follow up. I seems like OSU is trying to get too many patients through the system (like a crowded cattle shute).
Dr. O'Donnell is great. He always is fully aware of my medical history and attentive and thorough.
I had lots to over but Dr. O Donnell always receptive to my ideas and coming up with a plan gor health issues.
Great
All excellent
This was my first visit with this Dr specifically to have a biopsy done. He was obviously very knowledgeable and took the time to explain things to me. Also he was friendly and showed concern for my comfort and for my condition. I would definitely recommend him to anyone needing an endocrinologist.
Dr. O is great! One of the best.
He was professional and concerned.
Dr. O'Donnell and his staff were awesome. They were very professional and very kind to me.
Professioal Doctor
Dr Benjamin Endo was very easy to talk to and made me feel so much better about what was going on with my thyroid.
Very professional and understanding
He is very attentive and very respectful when I see him.
The doctor is great
Good
Easy to talk to, funny and helpful. Great listener and explains everything so you can understand
Dr O'Donnell has been my endocrinologist since 2016. He has been monitoring me for thyroid nodules and hyperthyroidism (amiodarone induced). He is a TOP doctor: always polite, informative, and patient with my many questions. He has also coordinated treatments in the past with my cardiologist and electrophysiologist. He also frequently communicates with me on MyChart messaging when I have questions. I'm pleased to have him as one of my specialists and would recommend him very highly.
Listened, asked my questions, asked if I had anything else I wanted addressed. Personable
Good
He is always very open and asked about my life along with my health
Concerned , informed
Dr. O'Donnell has consistently impressed me with his knowledge about treatments, especially as it relates to my bariatric surgery. I also very much appreciate the time he spends with me. I've never felt rushed nor ignored due to time constraints.
The doctor was awesome. He was very personable and fun to talk to. He asked what I did for a living and once I told him I was a veterinary anesthesiologist he spoke to me in more medical terminology and even showed me the ultrasound images of the nodule and the other adjacent anatomy. Very nice and normal guy, probably one of the most down to earth docs I've ever seen.
The care given by my providers was perfect
He exuded good energy and calmness. Genuine care about my situation.
Very good experience
Dr O'Donnell was very kind and informative, one of the best Dr's I've seen a a while! I have anxiety surrounding my health and him and his team put my fears to rest. Definitely recommend him and his team!!!!
He was great! Easy to talk to and listened. He explained things very well. Went through all my options and worked with me to find the right fit.
Has read My Chart before me getting into the exam room.Inquired as to how the program is working and followed up with questions concerning side effects.
Answered all my questions
Great listener, caring, & knowledgeable. I really trust him.
Provider is excellent
Dr. O'Donnell is one of the best doctor in the Country!
Dr. O'Donnell is always amazing! He always spends enough time with patients and gives options that work and are tailored for each patient.
He is always very caring and thoughtful. As is all his staff.
He is great!
Dr. O'Donnell is outstanding!
Dr. O'DONNELL was excellent. We were able to easily pinpoint my needs and care plan.
Dr. O'Donnell is an excellent and model physician/specialist.
Dr. O'Donnell is great provider, and I would highly recommend him to others.
Very good provider
Love talking to Dr ODonald. He is always friendly. Always listens to you and takes time answering your questions
Knowledgeable , compassionate , trustworthy
Very attentive great listener. Super supportive
Dr o'donnell listened to my concerns. Very easy to talk with.
Dr. O'Donnell is knowledgeable.and understanding when it comes to weight loss. It is refreshing to meet a provider who is empathic and non-judgemental about this sensitive topic.
Good
Took time to understand my needs and explain my options
Dr. O'Donnell was by far the nicest, most attentive doctor I've ever come across. He asked me all kinds of questions and listened to my answers
Dr.Odonell always shows compassion as well as interest in any problem or concern I have. The care and follow through he provides even after my appointment with testing and additional treatments is amazing. I wish every doctor I see would take the time to understand where I am and what I need to get better. I am physically and mentally healthier because I know he is on my team and wants me to feel better. He is truly an amazing doctor.
Excellent
Dr O'Donnell and fellow were amazing. One of my best medical experiences at OSU
Discussion was pleasant and informative.
Dr. O'Donnell and the fellow MD were great; they listened carefully to my concerns and questions, spent a good amount of time with me and set me up for success.
Both the doctor and his fellow took their time to understand my situation while also making me feel like a person, not just another patient.
He was kind and understanding. Helpful in all areas of questing.
He was great. He informed me of all my options and listened to my concerns.
Very thorough and explained everything very well.
Dr. O'Donnell is always attentive and knows my history well.
No bad experience
Dr. O'Donnell always has my best interest in mind. He's easy to talk to and listens to my concerns and questions. He's good to ask about my opinion and work through realistic solutions with me. Dr. O'Donnell, without a doubt, represents what a great doctor is.
Always good
He answered all my questions and gave me great information about Bariatric surgery.