Summary

Dr. Catherine Bartnik is a gastroenterologist with expertise in internal medicine who has dedicated twelve years to helping patients with digestive health concerns. She earned her medical degree from Michigan State University College of Human Medicine, building a strong foundation in comprehensive patient care. Her dual specialty training allows her to address both complex gastrointestinal conditions and broader internal medicine needs with a thorough understanding of how digestive health impacts overall wellness.

Dr. Bartnik practices throughout the Grand Rapids area and is affiliated with multiple Corewell Health facilities, including Butterworth Hospital, Blodgett Hospital, and Gerber Memorial in Fremont. She also sees patients at SHMG Gastroenterology Lake Drive and maintains connections with Emory Healthcare. Her clinical expertise focuses on treating conditions such as colon polyps, cirrhosis, and hemorrhoids. She performs specialized procedures including lower GI endoscopy, sedation services, and pathology tests to provide comprehensive diagnostic and treatment options for her patients. Patients rate her services highly, giving her an average rating of 4.8 out of 5.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.8
  • 12 years of experience
  • 42 insurance plans accepted
  • Michigan State University College Of Human Medicine
  • 21 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 1 hospital affiliation
  • 6 office locations
  • Female

Patients’ Perspective

  • Spent time with me

Office Locations

Dr. Catherine Bartnik has 6 locations

SHMG Gastroenterology Lake Drive

4100 Lake Dr SE Ste 205Grand Rapids, MI 49546
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Dr. Catherine Bartnik

200 Lothrop St # 3rdPittsburgh, PA 15213

Corewell Health Butterworth Hospital

100 Michigan St NeGrand Rapids, MI 49503

Corewell Health Blodgett Hospital

1840 Wealthy St SeGrand Rapids, MI 49506

Corewell Health Grand Rapids Hospitals Endoscopy

4100 Lake Dr Se Ste D105Grand Rapids, MI 49546
Mon7:00 am - 5:30 pm
Tue7:00 am - 5:30 pm
Wed7:00 am - 5:30 pm
Thu7:00 am - 5:30 pm
Fri7:00 am - 5:30 pm
Sat9:00 am - 3:00 pm
SunClosed

Corewell Health Gerber Memorial

212 S Sullivan AveFremont, MI 49412

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Dr. Catherine Bartnik, MDTheresa Obonyano, APRNKristina Mariann Byers-SpencerJackson Mesick
GastroenterologyGastroenterologyPediatricsPediatrics
Accepts New Patients Accepts New Patients
4.8 
12 Years of Experience 5 Years of Experience 4 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English
Grand Rapids , MISacramento , CAGrand Rapids , MIGrand Rapids , MI
Med School: Michigan State University College Of Human Medicine Med School: The University of Texas Health Science Center at Houston Med School: Western Michigan University Homer Stryker Md School Of Medicine Med School: Touro University California College Of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. Catherine Bartnik

  • Aetna
  • Aetna Better Health
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Michigan - HMO
  • Blue Cross Blue Shield of Michigan - Medicare
  • CHAMPVA
  • Cigna
  • Golden Rule
  • Health Alliance
  • HealthPartners
  • Humana
  • Humana - Medicare
  • McLaren Health Plan
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Mutual
  • Medicare
  • Medicare - Medicare
  • MediGold
  • Meridian Health Plan - Medicaid (Managed)
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid
  • Molina Healthcare - Medicaid (Managed)
  • Mutual of Omaha
  • Oscar Health Insurance
  • Physicians Health Plan
  • Priority Health
  • Priority Health - HMO
  • Priority Health - Medicaid (Managed)
  • Progressive
  • Reliance Standard
  • State Farm
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicaid
  • UnitedHealthcare - Medicare
  • UnitedHealthOne
  • Wellcare

Medical Specialties

Dr. Catherine Bartnik has the following 2 specialties

Specialty Expertise

Dr. Catherine Bartnik has the following 8 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Internal Medicine
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

12 Years Experience

Dr. Catherine Bartnik holds an active medical license in the state of Michigan.

Medical License

Medical Doctor with an active medical license in the state of Michigan that expires in 2027.

Education & Training

Medical School

Graduated from Michigan State University College Of Human Medicine in 2014.

NPI Number

Dr. Bartnik's NPI number is 1548688773.

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Frequently Asked Questions

Does Dr. Catherine Bartnik accept my insurance?
You can see the insurance plans that Dr. Catherine Bartnik accepts on their Vitals profile.
Is Dr. Catherine Bartnik accepting new patients?
Dr. Catherine Bartnik is accepting new patients on Vitals. View Dr. Catherine Bartnik's profile on Vitals to make an appointment.
Where is Dr. Catherine Bartnik's office located?
Dr. Catherine Bartnik's office is located at 4100 Lake Dr SE Ste 205, Grand Rapids, MI, 49546.
Does Dr. Catherine Bartnik accept virtual/telehealth appointments?
Dr. Catherine Bartnik has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Catherine Bartnik?
You can find contact information for Dr. Catherine Bartnik here on Vitals.

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