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Mary M Dagen

Mary M Dagen, MD

Bariatric Medicine

LGBTQIA+ Safe & Affirming
Accepting New Patients
Need help scheduling? Call (616) 267-7400

Highlights

Age Groups Seen

  • Infant 0-2
  • Child 3-12
  • Adolescent 13-17
  • Adult 18-64
  • Older Adult 65+

Languages

  • English

Gender

Female

Affiliations

  • Corewell Health Grand Rapids Hospitals

About Mary M Dagen

About the Provider

Mary Margaret Dagen, MD, is a board-certified family medicine physician. Dr. Dagen earned her medical degree from the American University of the Caribbean School of Medicine in Cupecoy, St. Maarten. She completed her family medicine residency at Munson Healthcare in Traverse City, Michigan.

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

  1. Corewell Health Bariatrics - 4100 Lake Dr SE
    • phone: 616-267-7400
    • fax: 616-267-7444
  2. Corewell Health Bariatrics - 8333 Felch St
    • phone: 616-267-7400
    • fax: 616-994-6683
  3. Corewell Health Bariatric Medicine - 4069 Lake Dr SE
    • 4069 Lake Drive Southeast, Suite 118, Grand Rapids, MI 49546
    • Get Directions
  4. Corewell Health Bariatrics - Grand Haven
    • 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

Please contact the practice office to confirm your specific plan. If you have questions about paying for care or would like to speak to a financial counselor, please visit our financial assistance page.
Search plans
  • 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 reviews

Corewell 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.

Search reviews
    4 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 2/4/2026

    I always appreciate how she keeps me in check and is very supportive!

    5 out of 5 stars
    Reviewed on 2/3/2026

    Thank you Dr Dagen!

    5 out of 5 stars
    Reviewed on 1/31/2026

    Very knowledgeable and non judgmental. I felt like she understood my frustration with my weight.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 1/16/2026

    Don't let her go!!!!!!!!!

    5 out of 5 stars
    Reviewed on 1/15/2026

    I’m very happy with her.

    5 out of 5 stars
    Reviewed on 1/15/2026

    She is an excellent care provider

    5 out of 5 stars
    Reviewed on 1/13/2026

    She’s amazing. See cares! She listens, she’s kind and always helpful.

    5 out of 5 stars
    Reviewed on 1/10/2026

    Very pleasant person I enjoy talking with her as my doctor

    5 out of 5 stars
    Reviewed on 1/10/2026

    It’s to bad all physicians couldn’t be like her.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 10/7/2025

    Very nice physician who wants to make sure you succeed

    5 out of 5 stars
    Reviewed on 9/9/2025

    She’s the real deal

    2 out of 5 stars
    Reviewed on 9/3/2025

    Did not feel listened to, so she could understand everything that is going on with me.

    5 out of 5 stars
    Reviewed on 8/29/2025

    Mary is top of her field. Love my interactions with her. Amazing knowledge.

    5 out of 5 stars
    Reviewed on 8/28/2025

    Explained all my questions to give me the extra push I needed

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 8/23/2025

    Shes the BEST

    5 out of 5 stars
    Reviewed on 8/23/2025

    Listens, responds, thinks down road and knows ME as a patient.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 8/16/2025

    She is a great emcourager and always has helpful information for me.

    5 out of 5 stars
    Reviewed on 8/16/2025

    Dr Dagen, You are the Best!!!

    5 out of 5 stars
    Reviewed on 8/16/2025

    She is excellent

    5 out of 5 stars
    Reviewed on 8/16/2025

    Loved her enthusiasm. Made me believe success was possible.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 7/17/2025

    I rated her as very good because excellent was not an option. :)

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 7/9/2025

    Wonderful doctor!

    5 out of 5 stars
    Reviewed on 7/2/2025

    She is a caring doctor who takes the time to listen.

    5 out of 5 stars
    Reviewed on 6/29/2025

    Dr Dagan is a great provider.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 6/19/2025

    She seemed very interested in my needs.

    5 out of 5 stars
    Reviewed on 6/19/2025

    I just love her to pieces. Always a joy to see her.

    5 out of 5 stars
    Reviewed on 6/9/2025

    Very knowledgeable answered questions and took her time

    5 out of 5 stars
    Reviewed on 6/7/2025

    Dr. Dagen is so committed and supportive.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 5/21/2025

    Very nice and very helpful. Explained everything well

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 4/29/2025

    I am thankful for her kindness, vast knowledge, and direction.

    5 out of 5 stars
    Reviewed on 4/24/2025

    Very easy to talk to and understanding. Provided me with great feed back and care

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 4/3/2025

    Wonderful!

    5 out of 5 stars
    Reviewed on 4/3/2025

    Straight to the point with no time wasted.

    5 out of 5 stars
    Reviewed on 4/2/2025

    Thank you, team!

    5 out of 5 stars
    Reviewed on 4/2/2025

    Listens to what I have to say and explains things well.

    5 out of 5 stars
    Reviewed on 3/28/2025

    Great at explaining and reviewing individual needs

    5 out of 5 stars
    Reviewed on 3/25/2025

    Always great experience

    5 out of 5 stars
    Reviewed on 3/25/2025

    Mary is like family to her patients. One of the best.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 3/8/2025

    Positive and encouraging

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 2/17/2025

    I already have recommended several of my friends.

    5 out of 5 stars
    Reviewed on 2/10/2025

    I appreciated being switched to a virtual appointment due to inclement weather, versus cancelling it altogether.

    5 out of 5 stars
    Reviewed on 2/10/2025

    She listens and is genuinely concerned about me

    5 out of 5 stars
    Reviewed on 2/10/2025

    Have always had great interactions with all staff members (since switching from Sparrow)

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 2/7/2025

    Great Coach!

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 1/16/2025

    Dr Dagen is awesome

    5 out of 5 stars
    Reviewed on 1/15/2025

    I feel grateful for all the providers on my care team.

    5 out of 5 stars
    Reviewed on 1/15/2025

    She's amazing

    5 out of 5 stars
    Reviewed on 1/14/2025

    Always satisfied with my outcome from Grand Haven Dr’s

    5 out of 5 stars
    Reviewed on 1/13/2025

    Dr. Dagen is the best!!!

    5 out of 5 stars
    Reviewed on 1/10/2025

    They make you feel like you are family