Quick answers
- Where does Dean A. Delwiche see patients?
- Medicare's clinician data lists 2 practice locations, including Appleton, WI and Oshkosh, WI. Call before your visit to confirm the address.
- What is Dean A. Delwiche's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Dean A. Delwiche accept Medicare assignment?
- Yes. Medicare's clinician data says Dean A. Delwiche 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 Dean A. Delwiche?
- (920) 358-1820, as listed in official Medicare / NPI Registry data.
- What is Dean A. Delwiche's NPI number?
- 1669417135. 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 Dean A. Delwiche is enrolled with Medicare (CMS data updated 2026-10-02).
- 2100 S Kensington, Suite 5Appleton, WI 54915 (920) 358‑1820
- 719 Doctors CtOshkosh, WI 54901 (920) 235‑0066
Group practices
Medicare enrollment lists Dean A. Delwiche as a member of this group (CMS data updated 2026-10-02).
- Valley Eye Associates26 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Appleton
Clinicians with the same Medicare primary specialty in Appleton, WI — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Illinois College Of Optometry At Chicago |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669417135 |
| 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