Quick answers
- Where does Karl M. Ermis see patients?
- Medicare's clinician data lists 2 practice locations, including El Campo, TX and Brenham, TX. Call before your visit to confirm the address.
- What is Karl M. Ermis's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Karl M. Ermis accept Medicare assignment?
- Yes. Medicare's clinician data says Karl M. Ermis 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 Karl M. Ermis?
- (979) 543-6821, as listed in official Medicare / NPI Registry data.
- What is Karl M. Ermis's NPI number?
- 1972509461. 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 Karl M. Ermis is enrolled with Medicare (CMS data updated 2026-10-02).
- 2012 W LoopEl Campo, TX 77437 (979) 543‑6821
- 605 Medical Ct, Suite 203Brenham, TX 77833 (979) 830‑1444
Group practices
Medicare enrollment lists Karl M. Ermis as a member of this group (CMS data updated 2026-10-02).
- Berkeley Eye Institute, PLLC63 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in El Campo
Clinicians with the same Medicare primary specialty in El Campo, TX — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | University Of Houston - College Of Optometry |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972509461 |
| 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