Quick answers
- Where does Roy E. Jonas see patients?
- Medicare's clinician data lists 2 practice locations, including Willmington, IL and Bourbonnais, IL. Call before your visit to confirm the address.
- What is Roy E. Jonas's specialty?
- Medicare lists Pediatric Medicine as the primary specialty.
- Does Roy E. Jonas accept Medicare assignment?
- Yes. Medicare's clinician data says Roy E. Jonas 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 Roy E. Jonas?
- (815) 476-5210, as listed in official Medicare / NPI Registry data.
- What is Roy E. Jonas's NPI number?
- 1760582316. 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 Roy E. Jonas is enrolled with Medicare (CMS data updated 2026-10-02).
- 105 S 1st StWillmington, IL 60481 (815) 476‑5210
- 338 Larry Power RdBourbonnais, IL 60914 (815) 935‑2991
Group practices
Medicare enrollment lists Roy E. Jonas as a member of this group (CMS data updated 2026-10-02).
- Riverside Health System199 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760582316 |
| 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