Meet Our Medical Team

Learn more about the doctors and physician's assistant at Urology Associates of Grand Rapids, PC.

Jeffrey B. Casamento, M.D.

In practice at Urology Associates since 1994.

Residency training:

1993-1994 Chief Resident, Urology - University of Rochester, Rochester, NY
1991-1993 Resident, Urology - University of Rochester, Rochester, NY
1990-1991 Associate Resident, Urology - University of Rochester, Rochester, NY
1988-1989 Intern, General Surgery - University of Rochester, Rochester, NY

Education:

1984-1988 Ohio State University College of Medicine, Doctor of Medicine
1980-1984 Ohio State University, Bachelor of Science in Biochemistry

Professional affiliations:

Member of the American Medical Association
Member of the American Urological Association
Member of the Michigan State Medical Society
Member of Kent County Medical Society

Certifications and licensures:

Diplomat of the National Board of Medical Examiners
Licensed to practice Medicine and Surgery in New York State
Licensed to practice Medicine and Surgery in Michigan
Board Certified; American Board of Urology

Erik M. Ratchford, D.O.

In practice at Urology Associates since 2012.

Residency training:

2011-2012 Chief Resident, Urology - Sparrow Hospital, Michigan State University
2009-2011 Resident, Urology - Sparrow Hospital, Michigan State University
2008-2009 Associate Resident, Urology, Sparrow Hospital, Michigan State University
2007-2008 Intern, Sparrow Hospital, Michigan State University Department of Surgery

Education:

2003-2007 Michigan State University, College of Osteopathic Medicine
1996-2000 Augustana College, Bachelor of Arts, Biology

Professional affiliations:

American Urologic Association
American College Osteopathic Surgeons
American Osteopathic Association
Michigan Urologic Society

Certifications and licensures:

Licensed to Practice Medicine and Surgery in Michigan
Board Certified; Amercian Osteopathic Board of Urological Surgery

Michael Kozminski, M.D.

In practice at Urology Associates since 2016.

Residency training:

2012-2016 Residency, Urology - University of Michigan
2011-2012 Internship, General Surgery - University of Michigan

Education:

2007-2011 University of Michigan Medical School, Doctor of Medicine
2003-2007 Northwestern University, Bachelor of Arts, Biological Science/Economics

Professional affiliations:

Member of the American Urological Association
Member of the Michigan State Medical Society
Member of Kent County Medical Society

Certifications and licensures:

Licensed to practice Medicine and Surgery
Board Certified; American Board Of Urology

Chase Heilbronn, M.D.

In practice at Urology Associates since 2023.

Residency Training:

2019-2023 Residency, Urology – Indiana University School of Medicine
2018-2019 Internship, General Surgery – Indiana University School of Medicine

Education:

2014-2018: Wayne State University School of Medicine, Doctor of Medicine
2010-2014: Miami University, Bachelor of Science, Kinesiology

Professional Affiliations:

Member of the American Urological Association, North Central Section
Member of the Michigan State Medical Society
Member of Kent County Medical Society

Certifications and licensures:

Board Eligible; American Board of Urology

Marie Nizienski, PA-C

In practice at Urology Associates since 2011.

Residency training:

2010-2011 Family Medicine, Internal Medicine, General Surgery, OB-GYN, Emergency Medicine, Urology

Education:

2008-2011 Master of Science of Physician Assistant Studies - Grand Valley State University
2003-2007 Bachelor of Science - Biomedical Science - Grand Valley State University

Professional affiliations:

American Academy of Physician Assistants
Michigan Academy of Physician Assistants

Certifications and licensures:

Physician Assistant - Certified

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A trusted practice

Patients have been traveling to our offices from all around Western Michigan to receive the urological treatments they need since 1968.

Our great physicians and staff are ready to get you feeling better and on the road to recovery.

CONTACT DETAILS

Phone: 616-459-3551

Fax: 616-459-1060

OFFICE HOURS

Mon - Fri: 8:00 am - 4:30 pm
Sat - Sun: Closed

(We're closed for lunch from 12:00 PM to 1:00 PM)

AFTER HOURS MEDICAL CARE

If you are in need of immediate medical attention, please call 911 or go to the nearest emergency department.

If you need a medication refill, you can call the next business day or ask your pharmacy to send a refill request to the physician.

If you have a medical question or concern that cannot wait until the next business day, call our main phone number at 616-459-3551 and our answering service will contact the on-call physician.

CONTACT DETAILS

Phone: 616-459-3551

Fax: 616-459-1060

OFFICE HOURS

Mon - Fri: 8:00 am - 4:30 pm
Sat - Sun: Closed

Closed for lunch from

12:00 PM to 1:00 PM

Our office does not have walk in appointment times.

AFTER HOURS MEDICAL CARE

If you are in need of immediate medical attention, please call 911 or go to the nearest emergency department.

If you need a medication refill, please call the next business day or ask your pharmacy to submit a refill request to the physician.

If you have a medical question or concern that cannot wait until the next business day, call our main phone number at 616-459-3551 and our answering service will contact the on-call physician.