Kevin J. Peifer, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Gastroenterologists in Rockford, IL
42 listed in Rockford, IL · Listings last verified October 2026 · How we vet listings
We list 42 gastroenterologists in the Rockford area, most of them in Rockford, McHenry and Sycamore. All are physicians (MD or DO), shown with the practice's phone number, address and Google rating where we could match one. 23 practices say they offer telehealth visits. Use the filters to narrow by city, telehealth, Medicare or Medicaid.
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Lionel B. Wong, MD
Gastroenterology
- Address
- 215 E 1st St Ste 211, Dixon 61021
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Mark T. Shiels, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Michael J. Manley, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Nabil D. Baddour, DO, MPH
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Nadeem Siddiqui, MD
Northwestern Medicine Digestive Health Institute McHenry
Gastroenterology
- Address
- 4309 W Medical Center Dr Ste B202, McHenry 60050
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Narumi O’Hara, MD
Gastroenterology
- Address
- 1711 Dekalb Ave Ste C4, Sycamore 60178
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Neha V. Kaiser, DO
Northwestern Medicine Digestive Health Institute Sycamore
Gastroenterology
- Address
- 1830 Mediterranean Dr, Sycamore 60178
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Ravishanker Vyas, MD
Gastroenterology
- Address
- 1036 W Stephenson St, Freeport 61032
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Richard B. Gilmore, MD
Gastroenterology
- Address
- 2300 N Rockton Ave, Rockford 61103
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Robert L. Barclay, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Roger L. Greenlaw, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
S C. Moore, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Salman Ali Khan, MD
Specialists In Gastroenterology
Gastroenterology
- Address
- 4309 W Medical Center Dr Ste B301, McHenry 60050
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Shakil A. Karim, DO
Gastroenterology
- Address
- 1401 E State St, Rockford 61104
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Shilpa Ravella, MD
Northwestern Medicine Digestive Health Institute McHenry
Gastroenterology
- Address
- 4309 W Medical Center Dr Ste B202, McHenry 60050
- Telehealth
- Not listed
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Steven O. Ikenberry, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Sumeet K. Tewani, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Sunil S. Patel, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
Talha Qureshi, MD
Rockford Gastroenterology Associates, Ltd
Gastroenterology
- Address
- 401 Roxbury Rd, Rockford 61107
- Telehealth
- Practice offers telehealth
- Medicare
- Not listed
- Medicaid
- Not listed
Last verified Oct 2026 Report a correction
In the Rockford area
Our Rockford listings cover northern Illinois west of Chicago: Winnebago County, McHenry County, DeKalb County, Stephenson County, Lee County and Ogle County. Rockford has the most listings. McHenry County is the second big area, with providers in McHenry, Crystal Lake, Woodstock, Algonquin and Huntley. DeKalb, Sycamore, Dixon and Freeport have smaller groups.
In Rockford, you'll see OSF HealthCare, UW Health and Mercyhealth, plus independent groups such as Rockford Gastroenterology Associates. Rosecrance provides behavioral health care in Rockford and Belvidere. In McHenry and DeKalb counties, Northwestern Medicine is the main system, with clinics in McHenry, Woodstock, DeKalb and Sycamore.
If you live in McHenry County, the Chicago listings may also be close to you. People farther west, near Dixon or Freeport, may find more choices in Rockford. Many practices also offer telehealth, which can save a drive.
Rockford Gastroenterology Associates has the largest group of GI listings in the area. Northwestern Medicine's Digestive Health Institute has offices in McHenry and Sycamore, and Mercyhealth has GI care in Woodstock. Ask where your colonoscopy would be done, since many groups run their own endoscopy centers.
Nearby: Chicago, IL · Quad Cities, IL · Peoria–Bloomington, IL
How to choose a gastroenterologist
A gastroenterologist, or GI doctor, diagnoses and treats problems of the digestive tract: the esophagus, stomach, intestines, colon, liver, pancreas and gallbladder. People see one for heartburn that won't go away, ongoing belly pain, diarrhea or constipation, bleeding, Crohn's disease or ulcerative colitis, and for colonoscopies.
Start with the kind of care you need. Many GI doctors handle a wide range of problems, but some focus on one area:
- General gastroenterologists handle most needs: reflux, ulcers, irritable bowel syndrome, screening colonoscopies and follow-up on abnormal tests.
- Inflammatory bowel disease (IBD) specialists manage Crohn's disease and ulcerative colitis over the long term.
- Advanced endoscopists do complex scope procedures, such as removing large polyps or treating bile duct and pancreas problems.
- Hepatologists focus on the liver. Many are gastroenterologists with extra liver training.
If you're not sure, a general gastroenterologist is the right first stop. They'll refer you on if you need a subspecialist.
Check credentials. Board certification in gastroenterology shows a doctor has finished 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.
Know if you're due for a colonoscopy. Experts recommend colorectal cancer screening for adults ages 45 to 75 [2]. A colonoscopy is one option. Some people can start with a stool test instead. Ask your primary care doctor which test fits you, and whether your family history means you should start earlier.
Confirm insurance before you book. Practices change the plans they accept, so call the office or check your insurer's directory. HMO plans usually need a referral first. Medicare Part B covers medically necessary specialist visits; you typically pay 20% of the Medicare-approved amount after your deductible [5].
Ask where procedures are done. Colonoscopies and other scopes happen in a hospital or a separate endoscopy center. The location can change what you pay, so ask before you schedule.
Know when not to wait. Vomiting blood or material that looks like coffee grounds, black or tar-like stool, or feeling faint, confused or cold and clammy with belly symptoms need emergency care, not an appointment [4]. Call 911.
Frequently asked questions
Do I need a referral to see a gastroenterologist?
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. Some GI practices also want a referral or recent test results before they book you, especially for a procedure, so call ahead and ask what to bring.
At what age should I get a colonoscopy?
The U.S. Preventive Services Task Force recommends colorectal cancer screening for adults ages 45 to 75. A colonoscopy is one way to screen, and stool tests are another. People with a family history of colon cancer, certain polyps or inflammatory bowel disease may need to start earlier or screen more often. Ask your doctor what's right for you.
Does Medicare cover a screening colonoscopy?
Yes. Medicare Part B covers a screening colonoscopy once every 120 months for most people, or once every 24 months if you're at high risk. There's no minimum age. You pay nothing for the screening if your doctor accepts assignment. If a polyp is removed during the test, you may owe a share of the cost.
What happens at a first GI appointment?
Expect questions about your symptoms, diet, bowel habits, medications and family history, plus a physical exam. The doctor may order blood work, a stool test, imaging or a scope procedure such as an upper endoscopy or colonoscopy. Bring a list of your medications and any recent lab results, scans or procedure reports.
How do I know if a gastroenterologist is board certified?
Look the doctor up on the American Board of Internal Medicine's free "Verify a Physician" tool, which shows whether they're certified in gastroenterology. Our listings show the credentials doctors report to the NPI registry, but we don't verify certification ourselves.