Quick answers
- Which hospitals does Sarah Koslakiewicz work at?
- Medicare's official clinician data lists Sarah Koslakiewicz at 3 hospitals: Beaumont Hospital - Grosse Pointe, Beaumont Hospital Royal Oak and Beaumont Hospital, Troy. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sarah Koslakiewicz see patients?
- Medicare's clinician data lists 3 practice locations, including Belleville, MI, Saint Clair Shores, MI and Grosse Pointe, MI. Call before your visit to confirm the address.
- What is Sarah Koslakiewicz's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Sarah Koslakiewicz accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah Koslakiewicz 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 Sarah Koslakiewicz?
- (734) 697-9065, as listed in official Medicare / NPI Registry data.
- What is Sarah Koslakiewicz's NPI number?
- 1538891528. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sarah Koslakiewicz works
Medicare's Facility Affiliation Data lists Sarah Koslakiewicz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beaumont Hospital - Grosse PointeGrosse Pointe, MI · Acute Care Hospital · CCN 230089
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · CCN 230269
Practice locations
Addresses where Sarah Koslakiewicz is enrolled with Medicare (CMS data updated 2026-10-02).
- 201 3rd St, Suite 200Belleville, MI 48111 (734) 697‑9065
- 22646 E 9 Mile Rd A, Corewell Health Family MedicineSaint Clair Shores, MI 48080 (586) 498‑4800
- 468 Cadieux RdGrosse Pointe, MI 48230 (313) 473‑1000
Group practices
Medicare enrollment lists Sarah Koslakiewicz as a member of this group (CMS data updated 2026-10-02).
- Oakwood Ambulatory LLC274 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Belleville
Clinicians with the same Medicare primary specialty in Belleville, MI — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538891528 |
| 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