Quick answers
- Where does William J. Holec see patients?
- Medicare's clinician data lists 1 practice location in Rapid City, SD. Call before your visit to confirm the address.
- What is William J. Holec's specialty?
- Medicare lists Optometry as the primary specialty.
- Does William J. Holec accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Holec 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 William J. Holec?
- (605) 342-0777, as listed in official Medicare / NPI Registry data.
- What is William J. Holec's NPI number?
- 1720146095. 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 William J. Holec is enrolled with Medicare (CMS data updated 2026-10-02).
- 2020 Jackson BlvdRapid City, SD 57702 (605) 342‑0777
Group practices
Medicare enrollment lists William J. Holec as a member of this group (CMS data updated 2026-10-02).
- Holec and Young Eye Care, LLP5 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Rapid City
Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Pacific University - College Of Optometry |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720146095 |
| 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