Call us at: 269.381.4577 or

Toll-Free at 1.800.211.0666

The Surgical Group of Southwest Michigan

Caring inspires


Current diagnosis and

and treatment methods


Vascular Diseases

Offering the highest quality

medical care and treatment

  • Peripheral Vascular


    The Surgical Group of Southwest Michigan - Peripheral Artery Disease (PAD), we evaluate, diagnose and treat PAD to restore proper blood flow throughout the body.

  • Hernia Repair


    We specialize in the accurate diagnosis and complete repair of both simple and complex hernias. We use the most advanced technology and the latest techniques to provide the safest and most effective hernia surgery available.

General & Vascular

surgery with a difference

We treat people of all ages – bringing together a multi-disciplinary team of specialists dedicated to making a positive difference.

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Our Clinic

Members of The Surgical Group of Southwest Michigan have been providing uninterrupted surgical care to the community of Kalamazoo and southwestern Michigan since 1981.

The members of the group were instrumental in the development of endovascular surgery in Kalamazoo, working to establish the first dedicated endovascular operating suites in Michigan. This group was the first to promote minimally invasive therapies for peripheral venous disease. The Surgical Group of Southwest Michigan pioneered office-based VNUS procedures thus, providing significant cost savings. The largest ICAVL certified peripheral vascular laboratory in southwestern Michigan is based with The Surgical Group of Southwest Michigan. Registered vascular technologists with combined experience of over 35 years perform all studies.

Our practice offers a wide range of general and vascular surgical services. In the field of vascular surgery, these services include the treatment of carotid artery disease, abdominal aortic aneurysm and lower extremity stenosis.

We also offer general surgical services such as the laparoscopic removal of the gallbladder, hernia repair, treatment of thoracic outlet syndrome and carpal tunnel syndrome, colon surgery and two procedures for the treatment of varicose veins: injection therapy (sclerotherapy) and ClosureFAST procedure for varicose veins.

Our Physicians

John T. Collins, Jr., M.D., F.A.C.S.

John T. Collins, Jr., M.D., F.A.C.S.

Dr. Collins has dedicated his life to providing excellent patient care along with performing the least invasive and most effective procedures used today.

James T. McLaren, M.D., F.A.C.S.

James T. McLaren, M.D., F.A.C.S.

Dr. McLaren is a highly skilled surgeon who provides caring, capable and compassionate service while working hard to stay current with the advances of General and Vascular surgery.

Sean P. O'Brien, M.D., F.A.C.S.

Sean P. O'Brien, M.D., F.A.C.S.

Dr. O'Brien's passion and experience in Vascular Medicine has allowed him to be one of the most innovative and creative vascular surgeons.