John G. Gustafson, MD
Cardiology
- Address
- 1722 Shaffer St Suite 1, Kalamazoo 49048
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Nov 2026 Report a correction

186 listed in Grand Rapids–Kalamazoo, MI · Listings last verified November 2026 · How we vet listings
We list 186 cardiologists in the Grand Rapids–Kalamazoo area, most of them in Grand Rapids, Kalamazoo and Wyoming. All are physicians (MD or DO), shown with the practice's phone number, address and Google rating where we could match one. Use the filters to narrow by city, telehealth, Medicare or Medicaid.
Cardiology
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Cardiology
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Trinity Health Medical Group, Cardiovascular - East Paris
Cardiology
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Trinity Health Heart Center - Muskegon
Cardiology
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Cardiology
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West Michigan Cardiology
Cardiology
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Cardiology
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Cardiology
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Cardiology
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Cardiology
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Cardiology
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Cardiology
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Cardiology
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Cardiology
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Corewell Health Lakeland Hospitals Cardiothoracic - St. Joseph
Cardiology
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University of Michigan Health-West Heart and Vascular
Cardiology
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Cardiology
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Great Lakes Heart & Vascular Institute PC
Cardiology
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Cardiology
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Cardiology
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Our Grand Rapids–Kalamazoo listings cover West Michigan and the southwest corner of the state: Kent County, Kalamazoo County, Ottawa County, Calhoun County, Muskegon County, Berrien County, Allegan County and Montcalm County. That runs along the Lake Michigan shore from Muskegon and Holland down to St. Joseph and Benton Harbor, and inland to Kalamazoo and Battle Creek.
Grand Rapids has the largest share of listings, so people in outlying towns often check there first. Kalamazoo is the second hub, with Portage next door. Wyoming, Grandville and Byron Center add options on the south side of Grand Rapids.
Corewell Health, Trinity Health and University of Michigan Health-West are the system names you'll see most around Grand Rapids. Bronson and Beacon Kalamazoo appear in the Kalamazoo and Battle Creek area. Holland Hospital appears on the lakeshore, along with Corewell Health Lakeland Hospitals in the St. Joseph area.
Liver specialists don't appear in our listings for this metro. A gastroenterologist can often manage liver disease and refer you on, or you can look to the Detroit area for a hepatologist.
Grand Rapids and Kalamazoo have the most heart care listings here. Trinity Health, University of Michigan Health-West and Corewell Health are the larger names, along with Great Lakes Heart & Vascular Institute and West Michigan Cardiology. Trinity Health also has a heart center in Muskegon. Wyoming, St. Joseph and Holland have smaller groups of their own.
Nearby: Lansing, MI · Flint–Saginaw–Bay City, MI · Traverse City, MI · Chicago, IL
A cardiologist is a doctor who diagnoses and treats conditions of the heart and blood vessels, such as high blood pressure, coronary artery disease, heart failure, abnormal heart rhythms and valve problems. Most people see one after a referral from their primary care doctor, but many practices also accept self-referred patients.
Start with the kind of heart care you need. Cardiology has subspecialties, and the right fit depends on your condition:
If you're not sure, a general cardiologist is the right first stop. They'll refer you on if you need a subspecialist.
Check credentials. Board certification in cardiovascular disease shows a doctor has completed specialty training and passed a certification exam. You can look up any doctor's certification for free on the American Board of Internal Medicine website [1]. Our listings show the credentials doctors report in the federal NPI registry, but we don't verify board certification.
Confirm insurance before you book. Practices change the plans they accept, so call the office or check your insurer's directory. If you have an HMO plan, you'll usually need a referral from your primary care doctor first. Medicare Part B covers medically necessary specialist visits; you typically pay 20% of the Medicare-approved amount after your deductible [3].
Think about location and hospital ties. Many cardiologists work in groups linked to a hospital system. If you may need tests or a procedure, a practice tied to a nearby hospital can keep your care in one place. Ask where they do stress tests, echocardiograms and catheterizations.
Ask about wait times and telehealth. New-patient waits for cardiology can run weeks. Ask whether there's a cancellation list, and whether follow-up visits can be done by video.
Know when not to wait. Chest pain, pressure or discomfort, shortness of breath, pain spreading to the arm, jaw or back, or sudden weakness or trouble speaking need emergency care, not an appointment. Call 911 [2].
It depends on your insurance. Most HMO plans require a referral from your primary care doctor before they'll cover a specialist visit. PPO plans and traditional Medicare usually don't. Even without a requirement, some cardiology practices ask for a referral or your recent test results, so call ahead and ask what to bring.
Expect a review of your symptoms, medical history, family history and medications, a physical exam, and often an electrocardiogram (ECG). The cardiologist may order more tests, such as an echocardiogram, a stress test or a heart monitor you wear at home. Bring a list of your medications and any recent lab or test results.
A cardiologist diagnoses and treats heart conditions with tests, medication and procedures done through the blood vessels, such as stents. A cardiac surgeon performs open operations, such as bypass surgery or valve replacement. Most people start with a cardiologist, who refers them to a surgeon only if surgery is needed.
Yes. Medicare Part B covers medically necessary visits to specialists, including cardiologists, as long as the doctor accepts Medicare. You typically pay 20% of the Medicare-approved amount after the Part B deductible. Medicare Advantage plans cover the same visits but may require referrals and in-network doctors.
Look the doctor up on the American Board of Internal Medicine's free "Verify a Physician" tool, which shows whether they're certified in cardiovascular disease and its subspecialties. Our listings show the credentials doctors report to the NPI registry, but we don't verify certification ourselves.