Quick answers
- Where does Allyson M. Bigham see patients?
- Medicare's clinician data lists 1 practice location in Evansville, IN. Call before your visit to confirm the address.
- What is Allyson M. Bigham's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Allyson M. Bigham accept Medicare assignment?
- Medicare's clinician data says Allyson M. Bigham may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Allyson M. Bigham?
- (812) 423-5000, as listed in official Medicare / NPI Registry data.
- What is Allyson M. Bigham's NPI number?
- 1356337661. 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 Allyson M. Bigham is enrolled with Medicare (CMS data updated 2026-10-02).
- 2417 W Franklin StEvansville, IN 47712 (812) 423‑5000
Group practices
Medicare enrollment lists Allyson M. Bigham as a member of this group (CMS data updated 2026-10-02).
- Simpson and Bigham Od Partnership4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Evansville
Clinicians with the same Medicare primary specialty in Evansville, IN — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | University Of Missouri St Louis - School Of Optometry |
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1356337661 |
| 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