4.5
42 Ratings with 12 written Reviews

Overview based on verified provider data
![]() | ![]() | ![]() | ![]() |
| Sean Peter O'brien, MD | Dr. Naseer Ahmed, MD | Dr. John Gary Girardot, MD | Dr. Zachary John Hartley Blossom, MD |
| Surgery | Surgery | Surgery | Diagnostic Radiology |
| Accepts New Patients | Accepts New Patients | ||
| 34 Years of Experience | 37 Years of Experience | 9 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks Spanish, English | |||
| Kalamazoo , MI | Kalamazoo , MI | Battle Creek , MI | Grand Rapids , MI |
| Med School: Michigan State University | Med School: Dow Medical College | Med School: Oakland University William Beaumont School Of Medicine | |
Current Profile | View Profile | View Profile | View Profile |
Sean Peter O'brien holds an active medical license in the state of Michigan.
Medical Doctor with an active medical license in the state of Michigan that expires in 2027.
Completed their fellowship at Drexel University College of Medicine in 1999 and Hahnemann University Hospital in 1999.
Completed their residency at Smahec (Msu / Kcms) in 1997 and Western Michigan University School of Medicine in 1997.
Completed their internship at Grace Hospital (Formerly Mt. Carmel Mercy) in 1993 and Wayne State University School of Medicine in 1993.
Graduated from Michigan State University in 1992 and University of Michigan Medical School in 1992.
Sean Peter O'brien's NPI number is 1952368896.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.