Quick answers
- Where does Nancy E. Guenthner see patients?
- Medicare's clinician data lists 1 practice location in Round Rock, TX. Call before your visit to confirm the address.
- What is Nancy E. Guenthner's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Nancy E. Guenthner accept Medicare assignment?
- Yes. Medicare's clinician data says Nancy E. Guenthner 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 Nancy E. Guenthner?
- (512) 501-2100, as listed in official Medicare / NPI Registry data.
- What is Nancy E. Guenthner's NPI number?
- 1639335128. 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 Nancy E. Guenthner is enrolled with Medicare (CMS data updated 2026-10-02).
- 17261 Smyers Ln, Suite 100Round Rock, TX 78681 (512) 501‑2100
Group practices
Medicare enrollment lists Nancy E. Guenthner as a member of this group (CMS data updated 2026-10-02).
- Aspire Vision Care, PLLC4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | University Of Houston - College Of Optometry |
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639335128 |
| 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