Quick answers
- Which hospitals does Jeffrey J. Raizer work at?
- Medicare's official clinician data lists Jeffrey J. Raizer at 3 hospitals: Northwestern Lake Forest Hospital, Northwestern Medicine Delnor Community Hospital and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey J. Raizer see patients?
- Medicare's clinician data lists 4 practice locations, including Grayslake, IL, St Charles, IL and Chicago, IL. Call before your visit to confirm the address.
- What is Jeffrey J. Raizer's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Neurology.
- Does Jeffrey J. Raizer accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey J. Raizer 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.
- Does Jeffrey J. Raizer offer telehealth?
- Medicare's clinician data says Jeffrey J. Raizer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jeffrey J. Raizer?
- (630) 377-6500, as listed in official Medicare / NPI Registry data.
- What is Jeffrey J. Raizer's NPI number?
- 1609807635. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffrey J. Raizer works
Medicare's Facility Affiliation Data lists Jeffrey J. Raizer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · CCN 140130
- Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · CCN 140211
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
Practice locations
Addresses where Jeffrey J. Raizer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1475 E Belvidere RdGrayslake, IL 60030
- 2900 Foxfield Rd, Suite 100St Charles, IL 60174 (630) 377‑6500
- 675 N Saint Clair StChicago, IL 60611
- 675 N St ClairChicago, IL 60611
Group practices
Medicare enrollment lists Jeffrey J. Raizer as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Neurologyalso
Other hematologist-oncologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609807635 |
| 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