Quick answers
- Where does Mark Kornaus see patients?
- Medicare's clinician data lists 5 practice locations, including Mesa, AZ, Janesville, WI and Monroe, WI. Call before your visit to confirm the address.
- What is Mark Kornaus's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Mark Kornaus accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Kornaus 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 Mark Kornaus?
- (480) 854-3310, as listed in official Medicare / NPI Registry data.
- What is Mark Kornaus's NPI number?
- 1215993530. 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 Mark Kornaus is enrolled with Medicare (CMS data updated 2026-10-02).
- 1121 S Gilbert Rd, Suite 103Mesa, AZ 85204 (480) 854‑3310
- 3200 E Racine StJanesville, WI 53546 (608) 371‑8000
- 4760 E Falcon Dr, Suite 101Mesa, AZ 85215 (480) 985‑7400
- 515 22nd AveMonroe, WI 53566 (608) 324‑2000
- 752 N High Point RdMadison, WI 53717 (608) 824‑4000
Group practices
Medicare enrollment lists Mark Kornaus as a member of these groups (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
- Southwestern Eye Center Ltd116 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215993530 |
| 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