
Mary M Dagen, MD
Bariatric Medicine
Highlights
Age Groups Seen
- Infant 0-2
- Child 3-12
- Adolescent 13-17
- Adult 18-64
- Older Adult 65+
Languages
- English
Gender
FemaleAffiliations
- Corewell Health Grand Rapids Hospitals
About Mary M Dagen
About the Provider
Dr. Dagen's clinical interests include sports medicine and obesity medicine.
LGBTQIA+ Safe & Affirming
To earn the "Safe and Affirming" designation, providers individually complete an online training program which includes modules developed by the National LGBTQIA+ Health Education Center. For more information, click here.
Locations
- Corewell Health Bariatrics - 4100 Lake Dr SE
- 4100 Lake Drive Southeast, Grand Rapids, MI 49546
- Get Directions
- phone: 616-267-7400
- fax: 616-267-7444
- Corewell Health Bariatrics - 8333 Felch St
- 8333 Felch Street, Suite 300, Zeeland, MI 49464
- Get Directions
- phone: 616-267-7400
- fax: 616-994-6683
- Corewell Health Bariatric Medicine - 4069 Lake Dr SE
- 4069 Lake Drive Southeast, Suite 118, Grand Rapids, MI 49546
- Get Directions
- phone: 616-267-7400
- fax: 616-267-7444
- Corewell Health Bariatrics - Grand Haven
- 15100 Whittaker Way, Grand Haven, MI 49417
- Get Directions
- phone: 616-267-7400
- fax: 616-267-7444
Experience
Education
- Residency: Munson Medical Center, Family Medicine, 2010
- Internship: Munson Medical Center, Family Medicine, 2008
- Medical School: American University of the Caribbean School of Medicine, Doctor of Medicine (MD), 2006
Board Certifications
- Family Medicine: American Board of Family Medicine, 2010
Insurance
- Aetna/Cofinity
- Align Senior Care MI
- BCBS Medicare Advantage Plus Blue
- BCBS PPO
- BCBS Traditional
- Blue Care Network
- Blue Care Network Medicare Advantage
- Blue Cross Complete
- Cigna
- Coventry First Health
- HAP/ASR
- Humana Military (Tricare East)
- McLaren Commercial
- McLaren Medicaid
- McLaren Medicare Advantage
- Medicaid
- Medicare
- Meridian AmBetter
- Meridian Complete (MI Health LINK) Dual Eligible
- Meridian Medicaid
- Molina Medicaid/MiChild/Marketplace (Health Plus)
- Molina Medicare
- Priority Health Choice Medicaid
- Priority Health HMO/PPO
- Priority Health Medicare Advantage
- Trinity Health Plan of MI
- UHC/Optum (VA Community Care Network)
- UM Health Plan
- United Health Care Commercial
- United Health Care Dual Complete
Ratings & Reviews
4.9 out of 5
186 ratings, 78 reviewsCorewell Health is committed to delivering high-quality and compassionate care. These ratings and reviews are transparent patient feedback collected via survey following a provider care experience that asks patients and families about the care they received.
- 4 out of 5 starsReviewed on 2/20/2026
She answered my concerns about my hair loss and brittle fingernails that is related to my "sleeve."
- 5 out of 5 starsReviewed on 2/19/2026
Dr. Mary Dagan is very compassionate, very caring about her patience and she is one of my favorites.
- 5 out of 5 starsReviewed on 2/10/2026
She always answers my questions and it’s to the point where I really don’t have many because she gives me all the information before I can ask it.
- 5 out of 5 starsReviewed on 2/7/2026
Excellent ideas on how to improve my health with exercise motivation better eating habitats better choices foods and taking care of my self she is so positive and amazing always wanting the best for her patients. She is absolutely the best doc I have ever had
- 2 out of 5 starsReviewed on 2/6/2026
As I stated prior, this is the first time I’ve experienced sub par care from Dr Dagen but she’s been off for an extended time and it was my first appt back with her and I had hoped we would go over food ideas, exercise as we normally did and it was only about changes in medications and a new Wegovy pill.
- 5 out of 5 starsReviewed on 2/4/2026
I always appreciate how she keeps me in check and is very supportive!
- 5 out of 5 starsReviewed on 2/3/2026
Thank you Dr Dagen!
- 5 out of 5 starsReviewed on 1/31/2026
Very knowledgeable and non judgmental. I felt like she understood my frustration with my weight.
- 5 out of 5 starsReviewed on 1/17/2026
All I can say is that she’s a wonderful provider and I’m so glad that she’s my doctor.
- 5 out of 5 starsReviewed on 1/16/2026
Don't let her go!!!!!!!!!
- 5 out of 5 starsReviewed on 1/15/2026
I’m very happy with her.
- 5 out of 5 starsReviewed on 1/15/2026
She is an excellent care provider
- 5 out of 5 starsReviewed on 1/13/2026
She’s amazing. See cares! She listens, she’s kind and always helpful.
- 5 out of 5 starsReviewed on 1/10/2026
Very pleasant person I enjoy talking with her as my doctor
- 5 out of 5 starsReviewed on 1/10/2026
It’s to bad all physicians couldn’t be like her.
- 5 out of 5 starsReviewed on 10/19/2025
She is an A+ Dr. very caring about you as a person and very easy to talk to about any issues you have as a patient.
- 5 out of 5 starsReviewed on 10/14/2025
I feel that Mary Dagan has gone above and beyond to help me feel more successful on this weight-loss journey
- 5 out of 5 starsReviewed on 10/7/2025
Very nice physician who wants to make sure you succeed
- 5 out of 5 starsReviewed on 9/9/2025
She’s the real deal
- 2 out of 5 starsReviewed on 9/3/2025
Did not feel listened to, so she could understand everything that is going on with me.
- 5 out of 5 starsReviewed on 8/29/2025
Mary is top of her field. Love my interactions with her. Amazing knowledge.
- 5 out of 5 starsReviewed on 8/28/2025
Explained all my questions to give me the extra push I needed
- 5 out of 5 starsReviewed on 8/27/2025
She treats me with kindness and respect. I always feel better after having an appt with her! She's the BEST!
- 5 out of 5 starsReviewed on 8/23/2025
Shes the BEST
- 5 out of 5 starsReviewed on 8/23/2025
Listens, responds, thinks down road and knows ME as a patient.
- 5 out of 5 starsReviewed on 8/22/2025
Always very concerned and caring about her patient's health and offering suggesting on how to improve our health. Seems to really enjoy her job of helping others. Has a great outlook on life.
- 5 out of 5 starsReviewed on 8/16/2025
She is a great emcourager and always has helpful information for me.
- 5 out of 5 starsReviewed on 8/16/2025
Dr Dagen, You are the Best!!!
- 5 out of 5 starsReviewed on 8/16/2025
She is excellent
- 5 out of 5 starsReviewed on 8/16/2025
Loved her enthusiasm. Made me believe success was possible.
- 5 out of 5 starsReviewed on 7/31/2025
She is an excellent provider ! She listens to me, encourages me and gives me advice on what I can be doing differently when necessary.
- 5 out of 5 starsReviewed on 7/24/2025
My experience with Dr Dagan was a very good experience. She is very professional and very friendly and knowledgeable easy to understand very informative and give me a lot of Hope for my problem.
- 5 out of 5 starsReviewed on 7/17/2025
I rated her as very good because excellent was not an option. :)
- 5 out of 5 starsReviewed on 7/11/2025
She was amazing and even though I’m quite active and have always ate healthy/done WW most of my life, she still provided me with personalized tips and strategies I found very useful! Love her upbeat positive attitude!
- 5 out of 5 starsReviewed on 7/9/2025
Wonderful doctor!
- 5 out of 5 starsReviewed on 7/2/2025
She is a caring doctor who takes the time to listen.
- 5 out of 5 starsReviewed on 6/29/2025
Dr Dagan is a great provider.
- 5 out of 5 starsReviewed on 6/23/2025
Dr. Dagen takes the time to listen to you as a patient and to implement a plan together to determine what works and what you tweek. She definitely has a passion for the health industry and allowing a person to be their best version of themselves.
- 5 out of 5 starsReviewed on 6/19/2025
She seemed very interested in my needs.
- 5 out of 5 starsReviewed on 6/19/2025
I just love her to pieces. Always a joy to see her.
- 5 out of 5 starsReviewed on 6/9/2025
Very knowledgeable answered questions and took her time
- 5 out of 5 starsReviewed on 6/7/2025
Dr. Dagen is so committed and supportive.
- 5 out of 5 starsReviewed on 6/4/2025
A jem! Compassionate, encouraging she understands the struggles of weight loss. I look forward to working with Dr. Dagen and other physicians, dietitians throughout the process leading up to the Bariatric surgery.
- 5 out of 5 starsReviewed on 5/25/2025
She is one of the best doctors I've ever seen, and I highly reccommend her to anyone struggling with their weight as I have, since seeing her I've felt more confident in myself and healthier within my body
- 5 out of 5 starsReviewed on 5/21/2025
Dr. Dagen was well organized and prepared for our meeting. She was on time and moved the meeting along with respect to our time. Also, Dr. Dagen appears to be well educated and experienced in her field.
- 5 out of 5 starsReviewed on 5/21/2025
Very nice and very helpful. Explained everything well
- 5 out of 5 starsReviewed on 5/20/2025
She is the best. If she leaves. I will find out where she went, and follow her. Do not let her go.
- 5 out of 5 starsReviewed on 5/8/2025
Dr Dagen is a very caring doctor. And will do anything within her abilities to help her patients. She is very knowledgeable and compassionate.
- 5 out of 5 starsReviewed on 4/29/2025
I am thankful for her kindness, vast knowledge, and direction.
- 5 out of 5 starsReviewed on 4/24/2025
Very easy to talk to and understanding. Provided me with great feed back and care
- 5 out of 5 starsReviewed on 4/17/2025
Dr Mary Dagen is very knowledgeable about this field and the medications that are best for you.
- 5 out of 5 starsReviewed on 4/3/2025
Wonderful!
- 5 out of 5 starsReviewed on 4/3/2025
Straight to the point with no time wasted.
- 5 out of 5 starsReviewed on 4/2/2025
Thank you, team!
- 5 out of 5 starsReviewed on 4/2/2025
Listens to what I have to say and explains things well.
- 5 out of 5 starsReviewed on 3/28/2025
Great at explaining and reviewing individual needs
- 5 out of 5 starsReviewed on 3/25/2025
Always great experience
- 5 out of 5 starsReviewed on 3/25/2025
Mary is like family to her patients. One of the best.
- 5 out of 5 starsReviewed on 3/25/2025
I got the help I needed and it has changed my life. I am healthier than I have been in quite a while.
- 5 out of 5 starsReviewed on 3/22/2025
Dr. Dagen is knowledgeable across a wide range of medical knowledge related to obesity. I appreciate her interactive style, listening to my concerns and providing me options.
- 5 out of 5 starsReviewed on 3/21/2025
Dr.Dagen is a great! She helps give me ways I can try to help myself and is a great encourager.
- 5 out of 5 starsReviewed on 3/8/2025
Positive and encouraging
- 5 out of 5 starsReviewed on 2/28/2025
I wouldn't trade her for the world. I would still be morbidly obese if it wasn't for Dr. Dagen.
- 5 out of 5 starsReviewed on 2/18/2025
The only downfall is it takes a long time to get an appt and if you have to change an appt they are booked way out
- 5 out of 5 starsReviewed on 2/17/2025
I already have recommended several of my friends.
- 5 out of 5 starsReviewed on 2/10/2025
I appreciated being switched to a virtual appointment due to inclement weather, versus cancelling it altogether.
- 5 out of 5 starsReviewed on 2/10/2025
She listens and is genuinely concerned about me
- 5 out of 5 starsReviewed on 2/10/2025
Have always had great interactions with all staff members (since switching from Sparrow)
- 5 out of 5 starsReviewed on 2/8/2025
I appreciated that Dr. Degan sent me her notes in MyChart and that her office will work to get insurance to cover the med she recommends. Really appreciate that!
- 5 out of 5 starsReviewed on 2/7/2025
Great Coach!
- 5 out of 5 starsReviewed on 2/5/2025
I want to personally thank Dr. D for the help and support. She truly is an amazing lady
- 5 out of 5 starsReviewed on 1/16/2025
Dr Dagen is awesome
- 5 out of 5 starsReviewed on 1/15/2025
I feel grateful for all the providers on my care team.
- 5 out of 5 starsReviewed on 1/15/2025
She's amazing
- 5 out of 5 starsReviewed on 1/14/2025
Always satisfied with my outcome from Grand Haven Dr’s
- 5 out of 5 starsReviewed on 1/13/2025
Dr. Dagen is the best!!!
- 5 out of 5 starsReviewed on 1/10/2025
They make you feel like you are family