Quick answers
- Where does Grace Grabenstein see patients?
- Medicare's clinician data lists 4 practice locations, including Mitchell, SD. Call before your visit to confirm the address.
- What is Grace Grabenstein's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Grace Grabenstein accept Medicare assignment?
- Yes. Medicare's clinician data says Grace Grabenstein 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 Grace Grabenstein?
- (605) 996-8712, as listed in official Medicare / NPI Registry data.
- What is Grace Grabenstein's NPI number?
- 1932087343. 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 Grace Grabenstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 1900 Grassland DrMitchell, SD 57301
- 1900 Grassland Dr, Suite 104Mitchell, SD 57301 (605) 996‑8712
- 525 N Foster StMitchell, SD 57301
- 525 N Foster St, Hospital DeptMitchell, SD 57301 (605) 995‑2000
Group practices
Medicare enrollment lists Grace Grabenstein as a member of this group (CMS data updated 2026-10-02).
- Avera Queen of Peace122 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Mitchell
Clinicians with the same Medicare primary specialty in Mitchell, SD — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932087343 |
| 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