Quick answers
- Where does Douglas C. Rienks see patients?
- Medicare's clinician data lists 1 practice location in Lincoln, NE. Call before your visit to confirm the address.
- What is Douglas C. Rienks's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Douglas C. Rienks accept Medicare assignment?
- Yes. Medicare's clinician data says Douglas C. Rienks 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 Douglas C. Rienks?
- (402) 435-1166, as listed in official Medicare / NPI Registry data.
- What is Douglas C. Rienks's NPI number?
- 1871648386. 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 Douglas C. Rienks is enrolled with Medicare (CMS data updated 2026-10-02).
- 2550 Superior St, Suite 150Lincoln, NE 68521 (402) 435‑1166
Group practices
Medicare enrollment lists Douglas C. Rienks as a member of this group (CMS data updated 2026-10-02).
- Nebraska Eye Institute2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Lincoln
Clinicians with the same Medicare primary specialty in Lincoln, NE — 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) | 1871648386 |
| 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