Quick answers
- Which hospitals does Dimeji Williams work at?
- Medicare's official clinician data lists Dimeji Williams at 4 hospitals: Advocate Illinois Masonic Medical Center, Advocate Lutheran General Hospital, Advocate Sherman Hospital and Advocate Trinity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dimeji Williams see patients?
- Medicare's clinician data lists 7 practice locations, including Elgin, IL, Park Ridge, IL and Buffalo Grove, IL. Call before your visit to confirm the address.
- What is Dimeji Williams's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Dimeji Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Dimeji Williams 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 Dimeji Williams?
- (847) 742-9800, as listed in official Medicare / NPI Registry data.
- What is Dimeji Williams's NPI number?
- 1124645114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dimeji Williams works
Medicare's Facility Affiliation Data lists Dimeji Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · CCN 140182
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · CCN 140223
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · CCN 140030
- Advocate Trinity HospitalChicago, IL · Acute Care Hospital · CCN 140048
Practice locations
Addresses where Dimeji Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1425 N Randall RdElgin, IL 60123 (847) 742‑9800
- 1775 Dempster StPark Ridge, IL 60068
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 2320 E 93rd StChicago, IL 60617 (773) 967‑3999
- 3815 Highland AveDowners Grove, IL 60515
Group practices
Medicare enrollment lists Dimeji Williams as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Elgin
Clinicians with the same Medicare primary specialty in Elgin, IL — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124645114 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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