Quick answers
- Where does Karena Greenstein see patients?
- Medicare's clinician data lists 1 practice location in Dallas, TX. Call before your visit to confirm the address.
- What is Karena Greenstein's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Karena Greenstein accept Medicare assignment?
- Yes. Medicare's clinician data says Karena Greenstein 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 Karena Greenstein?
- (972) 613-1113, as listed in official Medicare / NPI Registry data.
- What is Karena Greenstein's NPI number?
- 1306127998. 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 Karena Greenstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 10636 Garland RdDallas, TX 75218 (972) 613‑1113
Specialties
- Optometryprimary
Other optometrists in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306127998 |
| 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