Quick answers
- Does Theresa A. Haas accept Medicare assignment?
- Medicare's clinician data says Theresa A. Haas may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Theresa A. Haas's NPI number?
- 1609978683. 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 Theresa A. Haas is enrolled with Medicare (CMS data updated October 2, 2026).
- 409 E BroadwayTrenton, IL 62293
- PO Box JRaynham, MA 02767
Specialties
- Optometryprimary
Other optometrists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Illinois College Of Optometry At Chicago |
| Graduation year | 2004 (22 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1609978683 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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