Quick answers
- Which hospitals does Michael Chiorean work at?
- Medicare's official clinician data lists Michael Chiorean at 2 hospitals: Oaklawn Hospital and Swedish Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Chiorean see patients?
- Medicare's clinician data lists 3 practice locations, including Seattle, WA and Marshall, MI. Call before your visit to confirm the address.
- What is Michael Chiorean's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Michael Chiorean accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Chiorean 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 Michael Chiorean?
- (206) 844-6001, as listed in official Medicare / NPI Registry data.
- What is Michael Chiorean's NPI number?
- 1578527099. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael Chiorean works
Medicare's Facility Affiliation Data lists Michael Chiorean at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Oaklawn HospitalMarshall, MI · Acute Care Hospital · CCN 230217
- Swedish Medical CenterSeattle, WA · Acute Care Hospital · CCN 500027
Practice locations
Addresses where Michael Chiorean is enrolled with Medicare (CMS data updated 2026-10-02).
- 1229 Madison St, Suite 1450Seattle, WA 98104 (206) 844‑6001
- 200 N Madison StMarshall, MI 49068 (269) 781‑4271
- 215 E Mansion StMarshall, MI 49068
Group practices
Medicare enrollment lists Michael Chiorean as a member of these groups (CMS data updated 2026-10-02).
- Ella E M Brown Charitable Circle170 clinicians in the group
- Seattle Rheumatology Associates PLLC9 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578527099 |
| 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