Quick answers
- Does Bonnie W. Thomas accept Medicare assignment?
- Yes. Medicare's clinician data says Bonnie W. Thomas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Bonnie W. Thomas's NPI number?
- 1851321467. 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 Bonnie W. Thomas is enrolled with Medicare (CMS data updated October 2, 2026).
- 1525 E 55th St, Suite 201Chicago, IL 60615 (773) 388‑1600
- 4025 N Sheridan RdChicago, IL 60613 (773) 388‑1600
Group practices
Medicare enrollment lists Bonnie W. Thomas as a member of this group (CMS data updated October 2, 2026).
- Howard Brown Health Center52 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Howard Brown Health Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Illinois Medical College |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851321467 |
| 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