Quick answers
- Which hospitals does Gregory E. Lewis work at?
- Medicare's official clinician data lists Gregory E. Lewis at 2 hospitals: Swedish Medical Center and Swedish Medical Center / Cherry Hill. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory E. Lewis see patients?
- Medicare's clinician data lists 1 practice location in Seattle, WA. Call before your visit to confirm the address.
- What is Gregory E. Lewis's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Gregory E. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory E. Lewis 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 Gregory E. Lewis?
- (360) 658-2488, as listed in official Medicare / NPI Registry data.
- What is Gregory E. Lewis's NPI number?
- 1548228695. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory E. Lewis works
Medicare's Facility Affiliation Data lists Gregory E. Lewis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Swedish Medical CenterSeattle, WA · Acute Care Hospital · CCN 500027
- Swedish Medical Center / Cherry HillSeattle, WA · Acute Care Hospital · CCN 500025
Practice locations
Addresses where Gregory E. Lewis is enrolled with Medicare (CMS data updated 2026-10-02).
- 747 BroadwaySeattle, WA 98122 (360) 658‑2488
Group practices
Medicare enrollment lists Gregory E. Lewis as a member of this group (CMS data updated 2026-10-02).
- Seattle Emergency Physicians Services Inc PS41 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548228695 |
| 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