Quick answers
- Which hospitals does Regina L. Williams work at?
- Medicare's official clinician data lists Regina L. Williams at 1 hospital: Northwest Community Hospital 1. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Regina L. Williams see patients?
- Medicare's clinician data lists 6 practice locations, including Buffalo Grove, IL, Mount Prospect, IL and Kildeer, IL. Call before your visit to confirm the address.
- What is Regina L. Williams's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Regina L. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Regina L. 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 Regina L. Williams?
- (847) 725-8640, as listed in official Medicare / NPI Registry data.
- What is Regina L. Williams's NPI number?
- 1346228822. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Regina L. Williams works
Medicare's Facility Affiliation Data lists Regina L. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · CCN 140252
Practice locations
Addresses where Regina L. Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1450 Busch PkwyBuffalo Grove, IL 60089 (847) 725‑8640
- 199 W Rand RdMount Prospect, IL 60056 (847) 618‑5400
- 21481 N Rand RdKildeer, IL 60047 (847) 618‑9696
- 21481 N Rand Rd, Fl 2Kildeer, IL 60047 (847) 866‑7846
- 2650 Ridge AveEvanston, IL 60201
Group practices
Medicare enrollment lists Regina L. Williams as a member of this group (CMS data updated 2026-10-02).
- Endeavor Health Medical Group3,350 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Buffalo Grove
Clinicians with the same Medicare primary specialty in Buffalo Grove, IL — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346228822 |
| 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