Quick answers
- Which hospitals does Sean P. Obrien work at?
- Medicare's official clinician data lists Sean P. Obrien at 5 hospitals: Beacon Allegan, Borgess Medical Center, Bronson Battle Creek Hospital, Bronson Methodist Hospital and Three Rivers Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sean P. Obrien see patients?
- Medicare's clinician data lists 3 practice locations, including Kalamazoo, MI. Call before your visit to confirm the address.
- What is Sean P. Obrien's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also General Surgery.
- Does Sean P. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Sean P. Obrien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sean P. Obrien?
- (269) 226-5177, as listed in official Medicare / NPI Registry data.
- What is Sean P. Obrien's NPI number?
- 1952368896. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sean P. Obrien works
Medicare's Facility Affiliation Data lists Sean P. Obrien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beacon AlleganAllegan, MI · Critical Access Hospital · CCN 231328
- Borgess Medical CenterKalamazoo, MI · Acute Care Hospital · CCN 230117
- Bronson Battle Creek HospitalBattle Creek, MI · Acute Care Hospital · CCN 230075
- Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospital · CCN 230017
- Three Rivers HealthThree Rivers, MI · Acute Care Hospital · CCN 230015
Practice locations
Addresses where Sean P. Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1521 Gull RdKalamazoo, MI 49048
- 1521 Gull Rd, Suite 430Kalamazoo, MI 49048 (269) 226‑5177
- 1535 Gull RdKalamazoo, MI 49048 (269) 381‑3521
Group practices
Medicare enrollment lists Sean P. Obrien as a member of these groups (CMS data updated 2026-10-02).
- Ascension Medical Group Promed262 clinicians in the group
- Ascension Borgess Hospital37 clinicians in the group
Specialties
- Vascular Surgeryprimary
- General Surgeryalso
Other vascular surgeons in Kalamazoo
Clinicians with the same Medicare primary specialty in Kalamazoo, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952368896 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians