Quick answers
- Where does Craig A. Sieron see patients?
- Medicare's clinician data lists 1 practice location in Belleville, IL. Call before your visit to confirm the address.
- What is Craig A. Sieron's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Craig A. Sieron accept Medicare assignment?
- Medicare's clinician data says Craig A. Sieron 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 Craig A. Sieron?
- (618) 257-9800, as listed in official Medicare / NPI Registry data.
- What is Craig A. Sieron's NPI number?
- 1669592440. 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 Craig A. Sieron is enrolled with Medicare (CMS data updated 2026-10-02).
- 5308 W Main StBelleville, IL 62226 (618) 257‑9800
Specialties
- Optometryprimary
Other optometrists in Belleville
Clinicians with the same Medicare primary specialty in Belleville, IL — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1669592440 |
| 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