Quick answers
- Where does Gretchen I. Chadwick see patients?
- Medicare's clinician data lists 2 practice locations, including Prineville, OR and Redmond, OR. Call before your visit to confirm the address.
- What is Gretchen I. Chadwick's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Gretchen I. Chadwick accept Medicare assignment?
- Yes. Medicare's clinician data says Gretchen I. Chadwick 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 Gretchen I. Chadwick?
- (541) 416-2020, as listed in official Medicare / NPI Registry data.
- What is Gretchen I. Chadwick's NPI number?
- 1811940778. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gretchen I. Chadwick is enrolled with Medicare (CMS data updated 2026-10-02).
- 340 NW Beaver StPrineville, OR 97754 (541) 416‑2020
- 443 SW Evergreen AveRedmond, OR 97756 (541) 923‑2221
Group practices
Medicare enrollment lists Gretchen I. Chadwick as a member of these groups (CMS data updated 2026-10-02).
- High Desert Eyecare4 clinicians in the group
- Ochoco Vision Source LLP4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Prineville
Clinicians with the same Medicare primary specialty in Prineville, OR — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Pacific University - College Of Optometry |
| Graduation year | 1996 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811940778 |
| 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
- 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