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Gregory J Deines

Gregory J Deines, DO

EndocrinologyDiabetes

LGBTQIA+ Safe & Affirming
Accepting New Patients
Need help scheduling? Call (616) 267-8950

Highlights

Age Groups Seen

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

Languages

  • English

Gender

Male

Affiliations

  • Corewell Health Grand Rapids Hospitals

About Gregory J Deines

About the Provider

Gregory J. Deines, DO, is an internal medicine physician with a special interest endocrinology and metabolism. Dr. Deines earned his medical degree from Michigan State University College of Osteopathic Medicine in East Lansing. Dr. Deines completed his internal medicine residency at Metropolitan Hospital in Grand Rapids, Michigan.

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 Diabetes and Endocrinology - 221 Michigan St NE
    • 221 Michigan Street Northeast, Suite 200, Grand Rapids, MI 49503
    • Get Directions
    • phone: 616-267-8950
    • fax: 616-267-8585

Experience

Education

  • Residency: University of Michigan Health - West, Internal Medicine, 2001
  • Medical School: Michigan State University, College of Osteopathic Medicine, Doctor of Osteopathic Medicine (DO), 1998

Board Certifications

  • Internal Medicine: American Osteopathic Board of Internal Medicine, 2001

Insurance

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
  • Railroad Medicare
  • 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

4.8 out of 5

132 ratings, 40 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
    5 out of 5 stars
    Reviewed on 3/24/2026

    Always a pleasure to have an appointment with this facility

    5 out of 5 stars
    Reviewed on 3/12/2026

    He is very knowledgeable and easy to understand. Kind, pleasant person. Very good listener and caring person. I look forward to having him as a provider.

    3 out of 5 stars
    Reviewed on 3/9/2026

    He seems like he is burned out or is frustrated with his job

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

    Expert

    5 out of 5 stars
    Reviewed on 1/27/2026

    Keep him happy!!

    5 out of 5 stars
    Reviewed on 1/25/2026

    Super nice guy.

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

    He is late for most morning appointments

    5 out of 5 stars
    Reviewed on 12/25/2025

    I completely trust Dr. Deines on his medical decisions. He always listens to my questions an answers then completely.

    5 out of 5 stars
    Reviewed on 12/12/2025

    He is knowledgeable and thorough

    5 out of 5 stars
    Reviewed on 12/6/2025

    Dr Deines truly cares about his patients

    5 out of 5 stars
    Reviewed on 12/1/2025

    I really count on Greg Deines to be there for me.

    5 out of 5 stars
    Reviewed on 11/26/2025

    I’m always happy with the way Dr. Deines cares for me, patient , explains well, understanding, and encouraging

    5 out of 5 stars
    Reviewed on 11/15/2025

    Dr.is always very informative and helpful with my questions

    5 out of 5 stars
    Reviewed on 11/13/2025

    He has helped me get back on track! He is so nice!!

    1 out of 5 stars
    Reviewed on 10/25/2025

    I'm sad that a provider I trusted showed little interest in my concerns. Maybe he was in a hurry.

    5 out of 5 stars
    Reviewed on 10/23/2025

    Never a bad experience and always enjoy my visits.

    5 out of 5 stars
    Reviewed on 10/23/2025

    He is wonderful!

    5 out of 5 stars
    Reviewed on 10/20/2025

    I appreciated his willingness to listen to me

    5 out of 5 stars
    Reviewed on 10/17/2025

    He is friendly, helpful, and shows that he cares about how I am doing.

    5 out of 5 stars
    Reviewed on 10/16/2025

    Excellent doctor

    5 out of 5 stars
    Reviewed on 10/16/2025

    Always a goof meeting.

    1 out of 5 stars
    Reviewed on 10/3/2025

    i feel he had no interest in explaining what he needed, it seemed to only be about him the staff was helpful but when you tell someone to go back to their dr on the 2nd visit thats an inability to communicate

    5 out of 5 stars
    Reviewed on 9/30/2025

    He is very good at what he does

    5 out of 5 stars
    Reviewed on 9/25/2025

    Dr. Deines has been a great provider for all of the 10 plus he’s been my provider!!

    5 out of 5 stars
    Reviewed on 9/18/2025

    Friendly, knowledgeable, caring and thoughtfulness.

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

    He exudes an air of caring. One of the best bedside manner physicians I've met.

    5 out of 5 stars
    Reviewed on 8/20/2025

    Like that he explained why the hospital prefers that i remove my pump during surgery.

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

    Took time and explain what was going on a very professional.

    5 out of 5 stars
    Reviewed on 6/25/2025

    I enjoyed my visit with Dr. Deines, he wanted to get me off of insulin, and listened to what I had to say, even having a dietician come in afterward.

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

    Great practice that puts patients first

    5 out of 5 stars
    Reviewed on 6/4/2025

    Dr Deines is caring and knowledgeable.

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

    Great doctor

    5 out of 5 stars
    Reviewed on 5/20/2025

    Appreciated his obvious knowledge and experience

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

    Continued concerns with attentive listening to specific questions and satisfactorily answering the actual question asked.

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

    No matter what I ask my Doctor always makes sense kudos

    5 out of 5 stars
    Reviewed on 3/29/2025

    Great people to work with.

    4 out of 5 stars
    Reviewed on 3/21/2025

    I’m very satisfied for the care that I’ve received from the many years I’ve been with them.

    5 out of 5 stars
    Reviewed on 2/18/2025

    GREAT

    3 out of 5 stars
    Reviewed on 2/14/2025

    Obtained different info from two providers.

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

    A great doctor and great staff.