
Highlights
Age Groups Seen
- Infant 0-2
- Child 3-12
- Adolescent 13-17
- Adult 18-64
- Older Adult 65+
Languages
- English
Gender
MaleAffiliations
- Corewell Health Greenville Hospital
- Corewell Health Grand Rapids Hospitals
About William D Clark
About the Provider
I got into medicine in order to help those that need it the most. Family medicine allows me to do that in an extremely effective way, building relationships that last for years and decades.
My approach is a hybrid of lifestyle changes as well as modern medicine — including vaccinations. I’m often asked, “What are the most important things I can do to optimize my health?” My response is:
- Optimize your sleep as much as possible.
- Stay active—both physically and mentally.
- Eat a healthy, well-balanced diet. Consider becoming more plant-based.
- Take care of your mental health. Don’t be afraid to reach out for help.
- Maintain positive social interactions and relationships.
While there are many clinical areas I’m passionate about — preventive medicine, sports medicine, pediatrics, lifestyle medicine, and dermatology — my favorite part of being a doctor is getting to watch families grow and taking care of them, long-term.
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 Family, lnternal and Pediatric Medicine - Rockford
- 8501 Meadow Creek, Rockford, MI 49341
- Get Directions
- phone: 616-267-7884
- fax: 616-866-5386
- Corewell Health Grand Rapids Hospitals Family Medicine Residency - 275 Michigan St NE
- 275 Michigan Street Northeast, Suite 8100, Grand Rapids, MI 49503
- Get Directions
- phone: 616-267-0800
- fax: 616-267-0801
- Corewell Health Grand Rapids Hospitals Family Medicine Residency - Greenville
- 1202 West Oak Street, Suite 200, Greenville, MI 48838
- Get Directions
- phone: 616-754-4685
- fax: 616-754-9883
Experience
Education
- Residency: University of Michigan Health - West, Family Medicine, 2015
- Internship: University of Michigan Health - West, Family Medicine, 2013
- Medical School: Michigan State University, College of Osteopathic Medicine, Doctor of Osteopathic Medicine (DO), 2012
Board Certifications
- Family Medicine/OMT: American Osteopathic Board of Family Physicians, 2015
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 Community Plan (Medicaid)
- United Health Care Dual Complete
Ratings & Reviews
4.9 out of 5
252 ratings, 86 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.
- 5 out of 5 starsReviewed on 3/19/2026
Wonderful doctor.
- 5 out of 5 starsReviewed on 1/26/2026
Everything one would want in a physician
- 5 out of 5 starsReviewed on 1/16/2026
You should have another selection on this survey that you can choose - EXCELLENT, because that is what I would have picked for all my answers.
- 5 out of 5 starsReviewed on 1/15/2026
Dr. Clark is an exceptional primary care physician who truly stands out in his field. His ability to actively listen and genuinely care for his patients creates a comforting and trustworthy environment. His brilliance in diagnosing and treating medical issues is evident, making him a reliable choice for healthcare needs. I highly recommend Dr. Clark for anyone seeking a compassionate, skilled, and dedicated doctor. Five stars isn't enough - he deserves a galaxy of stars! ⭐⭐⭐⭐⭐
- No RatingReviewed on 12/20/2025
Happy he’s my doctor
- 5 out of 5 starsReviewed on 12/15/2025
Thank you very much!
- 5 out of 5 starsReviewed on 12/11/2025
Dr Clark is the consummate professional. Knowledgeable, attentive and willing to take the time to explain
- 5 out of 5 starsReviewed on 12/10/2025
Thank you for explaining things in a way that I can understand.
- 5 out of 5 starsReviewed on 12/3/2025
I appreciate feeling heard and not rushed. Solid experience.
- 5 out of 5 starsReviewed on 12/2/2025
I really appreciated his recommendation for a supplement that may be beneficial to my health.
- 5 out of 5 starsReviewed on 11/27/2025
When I don't understand all my test, he is there to answer my questions.
- 5 out of 5 starsReviewed on 11/27/2025
I couldn’t ask for better care
- 5 out of 5 starsReviewed on 11/24/2025
Great communication and seemed to really care.
- 5 out of 5 starsReviewed on 11/22/2025
I spend too much time on Google looking for trouble. He straightens it all out and gets me back on the road to good health.
- 5 out of 5 starsReviewed on 11/20/2025
Dr Clark was very knowledgeable and kind.
- 5 out of 5 starsReviewed on 11/20/2025
Kind
- 5 out of 5 starsReviewed on 11/11/2025
Easy to speak with. Provides helpful advice to stay healthy.
- 5 out of 5 starsReviewed on 11/5/2025
I trust Dr Clark.
- 5 out of 5 starsReviewed on 11/4/2025
William Clark was thorough, listened to my concerns and took action to further assist my Healthcare needs.
- 5 out of 5 starsReviewed on 10/29/2025
Dr. Clark is very caring and very informative and willing to take the extra time to help!
- 5 out of 5 starsReviewed on 10/29/2025
Dr. Clark is a Very thorough Dr. And listens well and handles everything very professional.
- 4 out of 5 starsReviewed on 10/8/2025
I appreciate Dr. Clark, he’s given me good advice in the past, this visit just felt a little impersonal
- 5 out of 5 starsReviewed on 10/5/2025
I have struggled with spiking BP for a few years now and with fatigue. Dr Clark is switching my meds out and having me work with their pharmacist who is part of their team. I didn’t have this type of team work available in Traverse City. It gives me the comfort that things will start turning around for my health.
- 5 out of 5 starsReviewed on 10/2/2025
He is a nice person and easy to talk to about my medical problems
- 5 out of 5 starsReviewed on 9/27/2025
Kind, smart
- 5 out of 5 starsReviewed on 9/27/2025
Dr Clark is the doctor we always hoped to find. Friendly, not only listens but hears what we have to say and speaks with us not too us.
- 5 out of 5 starsReviewed on 9/27/2025
Very good Dr , I’m very happy with him
- 4 out of 5 starsReviewed on 9/24/2025
Contacted me follow up
- 5 out of 5 starsReviewed on 9/20/2025
Wonderful dr !! Can tell he really !!!! Just your record before seeing you and best dr had in very long Tim best !!!
- 5 out of 5 starsReviewed on 9/18/2025
He is very caring and tries to help me. Good listener.
- 5 out of 5 starsReviewed on 9/18/2025
He is the best doctor I have ever used. Can't think of anything he could improve on. Ashley is the MA is also super good and I hope both of them stay!
- 5 out of 5 starsReviewed on 9/17/2025
He's a good listener and gives good feedback
- 5 out of 5 starsReviewed on 9/17/2025
Dr. Clark is an excellent doctor and I appreciate his care.
- 5 out of 5 starsReviewed on 9/17/2025
Very good Doctor, this is why I continue with him 😀
- 5 out of 5 starsReviewed on 9/10/2025
DR. Clark never rush you and he really listen
- 5 out of 5 starsReviewed on 8/26/2025
He made me feel very comfortable and confident in having him as my new primary care doctor
- 5 out of 5 starsReviewed on 8/21/2025
Dr. Clark is the best doctor I have ever had.
- 5 out of 5 starsReviewed on 8/20/2025
He is extremely knowledgeable and very good at explaining and communicating my care options. I greatly appreciated being welcomed into the practice and I feel very confident in Dr. Clark taking on my care.
- 5 out of 5 starsReviewed on 8/17/2025
Very accommodating
- 5 out of 5 starsReviewed on 8/16/2025
He is the best.
- 5 out of 5 starsReviewed on 8/2/2025
Amazing doctor with lots of patience. Friendly
- 5 out of 5 starsReviewed on 7/22/2025
Dr. Clark saved my life. He is by far the best doctor I have ever had
- 5 out of 5 starsReviewed on 7/15/2025
Dr. Clark is awesome! Always explaining what needs to be done and how to go about it
- 5 out of 5 starsReviewed on 7/8/2025
Dr Clark was filling in for my regular provider. He was very caring and explained everything to me. He interceded to get me in for X-rays in a very timely fashion. This is the kind of professional care with personal concern that l appreciate at this office.
- 5 out of 5 starsReviewed on 7/2/2025
Always Great Experience--Very Dependable--would not trade..I followed from Byron Center
- 5 out of 5 starsReviewed on 7/2/2025
He is very kind and passionate, care about his patients. He delivered a highest quality care to his patients. I’m very grateful he is my doctor.
- 5 out of 5 starsReviewed on 6/29/2025
Very easy to talk with
- 5 out of 5 starsReviewed on 6/27/2025
I am blessed to have Dr Clark as my doctor and thankful for his expertise and dedication to provide excellent care to his patients:)
- 5 out of 5 starsReviewed on 6/24/2025
I believe timing was excellent for this change.
- 5 out of 5 starsReviewed on 6/20/2025
I like how he looked at all I have been through in the past
- No RatingReviewed on 6/20/2025
I do appreciate that Dr Clark listens to my concerns even if my brain is doing overtime trying to figure something out.
- 5 out of 5 starsReviewed on 6/19/2025
Listened and knew how to answer all of my questions. Kind of wish more questions were asked to help me remember things but I had memorized a list of my concerns.
- 5 out of 5 starsReviewed on 6/19/2025
Dr. Clark is amazing! I’ve worked with him for years. He has and continues to be very supportive and empathetic while being very intelligent. Couldn’t ask for more in a doctor. Very impressed and grateful to work with him.
- 5 out of 5 starsReviewed on 6/11/2025
Dr. Clark was professional, polite, and knowledgeable. I had a medical concern that was of a rather personal nature shall we say, and Dr. Clark's care was of the utmost discretion and professionalism. Highly recommended.
- 5 out of 5 starsReviewed on 6/10/2025
Save my life
- 5 out of 5 starsReviewed on 6/8/2025
Thank-you for the difference you’ve made in my health.
- 5 out of 5 starsReviewed on 6/8/2025
He’s the best.
- 5 out of 5 starsReviewed on 5/29/2025
See previous answer, but with a continued response I have nothing but great things to say about Dr. Clark. Would recommend him to everyone I know!
- 5 out of 5 starsReviewed on 5/22/2025
He’s the absolute best doctor I’ve ever seen. I’ve been to Pennock, Metro, Trinity and other Corewell providers and feel very lucky to have him as my doctor. I hope he never retires:)
- 5 out of 5 starsReviewed on 5/18/2025
Dr. Clark shared a couple personal experiences with us pertaining to our situation that we found very informative and helpful. He is a great communicator and demonstrates interest in his patients.
- 5 out of 5 starsReviewed on 5/10/2025
Doctor Clark was efficient and listened to my problems. I got two shots and didn't really feel either of them. I like him and his staff.
- 5 out of 5 starsReviewed on 5/9/2025
he always listens and gives options to my health concerns
- 5 out of 5 starsReviewed on 5/7/2025
Very thorough and easy to talk to.
- 5 out of 5 starsReviewed on 5/7/2025
Dr. Clark is a consummate professional
- 5 out of 5 starsReviewed on 5/7/2025
Office was clean, everyone was kind. Dr. Clark made me feel as if I was the only patient he was working with.
- 5 out of 5 starsReviewed on 5/5/2025
William Clark is the best doctor I’ve had. I would tell him to, keep doing what he’s doing
- 5 out of 5 starsReviewed on 5/3/2025
An excellent doctor. Never makes you feel guilty. Just listens and tries to help, tells the truth if a treatment would hurt more than help. Top notch.
- 5 out of 5 starsReviewed on 5/2/2025
Very kind, patient, and surpassed my expectations. Honestly I’ve had bad experiences with male docs before with them being arrogant and misogynistic but Dr Clark is the complete opposite. Whoever taught him to be a doctor/about bedside manner did an excellent job. We need more docs like this!
- 4 out of 5 starsReviewed on 4/28/2025
Fine. Listened carefully, but did not understand that I might want a topical treatment for rash on neck. I did not ask.
- 5 out of 5 starsReviewed on 4/23/2025
Best doctor I've had in years he listens explains and handles the situation.
- 5 out of 5 starsReviewed on 4/8/2025
Love being a patient of Dr Clark's.
- 5 out of 5 starsReviewed on 4/2/2025
I would travel a long distance if I had to. Dr Clark and his nurse are amazing not many people can say their excited to go to their appointments
- 5 out of 5 starsReviewed on 4/2/2025
For a professional
- 5 out of 5 starsReviewed on 3/31/2025
I received the care I needed on the most hospitable way possible and quickly as well
- 5 out of 5 starsReviewed on 3/29/2025
I was able to get the shot I needed at my appointment, I was able to have my blood drawn while I was there too!
- 5 out of 5 starsReviewed on 3/24/2025
For me it had a lot to do with location, location location!
- 5 out of 5 starsReviewed on 3/6/2025
Fantastic, caring provider
- 5 out of 5 starsReviewed on 3/4/2025
I was assisted out because of the weather
- 5 out of 5 starsReviewed on 3/3/2025
He listened to my concerns and provided an answer to my concerns.
- 5 out of 5 starsReviewed on 2/26/2025
Dr Clark and his MA Ashley H provided top tier care I have never been to a NP appt where the physician has actually reviewed my previous records and came with questions and suggestions of how together we can get me to my healthcare goals
- 5 out of 5 starsReviewed on 2/22/2025
Very happy with overall service
- 5 out of 5 starsReviewed on 2/20/2025
Dr. Clark is the best doctor I have ever had. He listens, explains things well, is compassionate and knowledgeable.
- No RatingReviewed on 2/16/2025
Very satisfactory!
- 5 out of 5 starsReviewed on 2/15/2025
I am very grateful to be able to have the excellent care that is provided at the Rockford MI Corewell Heath.
- 5 out of 5 starsReviewed on 2/13/2025
He is a great listener
- 5 out of 5 starsReviewed on 2/4/2025
I live in Byron Center and to my care to Rockford because of the combination of compassion, listening, and Dr Clark's medical knowledge.