Quick answers
- Where does Mark R. Lanka see patients?
- Medicare's clinician data lists 2 practice locations, including Nashville, AR and Broken Bow, OK. Call before your visit to confirm the address.
- What is Mark R. Lanka's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Mark R. Lanka accept Medicare assignment?
- Yes. Medicare's clinician data says Mark R. Lanka 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 R. Lanka?
- (870) 845-3725, as listed in official Medicare / NPI Registry data.
- What is Mark R. Lanka's NPI number?
- 1679817506. 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 R. Lanka is enrolled with Medicare (CMS data updated 2026-10-02).
- 410 N Main St, 3 Med Southwest PLLC Dba Texarkana ENashville, AR 71852 (870) 845‑3725
- 511 S Park Dr A, Med Southwest PLLC Dba Texarkana EBroken Bow, OK 74728 (580) 584‑3434
Group practices
Medicare enrollment lists Mark R. Lanka as a member of this group (CMS data updated 2026-10-02).
- Med Southwest PLLC229 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Arkansas
Clinicians with the same Medicare primary specialty in Arkansas — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | International American University At Puerto Rico - School Of Optometry |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679817506 |
| 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