Quick answers
- Which hospitals does Gretha E. Lewis work at?
- Medicare's official clinician data lists Gretha E. Lewis at 1 hospital: Confluence Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gretha E. Lewis see patients?
- Medicare's clinician data lists 5 practice locations, including Wenatchee, WA and Moses Lake, WA. Call before your visit to confirm the address.
- What is Gretha E. Lewis's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Gretha E. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Gretha 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.
- Does Gretha E. Lewis offer telehealth?
- Medicare's clinician data says Gretha E. Lewis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gretha E. Lewis?
- (509) 662-2208, as listed in official Medicare / NPI Registry data.
- What is Gretha E. Lewis's NPI number?
- 1760118327. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gretha E. Lewis works
Medicare's Facility Affiliation Data lists Gretha E. Lewis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Confluence Health HospitalWenatchee, WA · Acute Care Hospital · CCN 500016
Practice locations
Addresses where Gretha E. Lewis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1201 S Miller StWenatchee, WA 98801 (509) 662‑2208
- 1215 S Miller StWenatchee, WA 98801 (509) 665‑6087
- 820 N Chelan AveWenatchee, WA 98801 (509) 663‑8711
- 840 E Hill AveMoses Lake, WA 98837 (509) 663‑8711
- 933 Red Apple RdWenatchee, WA 98801
Group practices
Medicare enrollment lists Gretha E. Lewis as a member of this group (CMS data updated 2026-10-02).
- Central Washington Health Services Association721 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Wenatchee
Clinicians with the same Medicare primary specialty in Wenatchee, WA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1760118327 |
| 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