Quick answers
- Does Rebecca A. Boumstein accept Medicare assignment?
- Yes. Medicare's clinician data says Rebecca A. Boumstein 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 Rebecca A. Boumstein's NPI number?
- 1659842193. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Rebecca A. Boumstein works
Medicare's Facility Affiliation Data lists Rebecca A. Boumstein at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
Practice locations
Addresses where Rebecca A. Boumstein is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1000 N Westmoreland Rd, Pavillion B 3rd FlLake Forest, IL 60045 (847) 535‑8500
- 1000 Westmoreland RdLake Forest, IL 60045 (847) 234‑5600
- 1200 N Westmoreland Rd, Suite 100Lake Forest, IL 60045 (847) 735‑8500
- 600 N Westmoreland Rd, Suite 1100Lake Forest, IL 60045 (847) 535‑9510
- 660 N Westmoreland RdLake Forest, IL 60045 (847) 234‑5600
Group practices
Medicare enrollment lists Rebecca A. Boumstein as a member of this group (CMS data updated October 2, 2026).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lake Forest
Clinicians with the same Medicare primary specialty in Lake Forest, IL — not a recommendation.
Other clinicians in Northwestern Medical Faculty Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659842193 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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