Quick answers
- Where does William G. Johnson see patients?
- Medicare's clinician data lists 2 practice locations, including Winnebago, IL. Call before your visit to confirm the address.
- What is William G. Johnson's specialty?
- Medicare lists Chiropractic as the primary specialty.
- Does William G. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says William G. Johnson 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 William G. Johnson?
- (815) 335-2820, as listed in official Medicare / NPI Registry data.
- What is William G. Johnson's NPI number?
- 1063500866. 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 William G. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 502 N ElidaWinnebago, IL 61088 (815) 335‑2820
- 502 N Elida PO Box, Suite 413Winnebago, IL 61088
Specialties
- Chiropracticprimary
Other chiropractors in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| Medical school | Palmer College Chiropractic - Davenport |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063500866 |
| 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