Quick answers
- Which hospitals does Marlon B. Kleinman work at?
- Medicare's official clinician data lists Marlon B. Kleinman at 5 hospitals: Midwestern Region Medical Center, Inc, Northshore University Healthsystem - Evanston Hospital, Northwest Community Hospital 1, Northwestern Lake Forest Hospital and Swedish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marlon B. Kleinman see patients?
- Medicare's clinician data lists 2 practice locations, including Zion, IL and Morton Grove, IL. Call before your visit to confirm the address.
- What is Marlon B. Kleinman's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Marlon B. Kleinman accept Medicare assignment?
- Yes. Medicare's clinician data says Marlon B. Kleinman 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 Marlon B. Kleinman offer telehealth?
- Medicare's clinician data says Marlon B. Kleinman offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marlon B. Kleinman?
- (847) 872-4561, as listed in official Medicare / NPI Registry data.
- What is Marlon B. Kleinman's NPI number?
- 1255343521. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marlon B. Kleinman works
Medicare's Facility Affiliation Data lists Marlon B. Kleinman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Midwestern Region Medical Center, IncZion, IL · Acute Care Hospital · CCN 140100
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · CCN 140010
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · CCN 140252
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · CCN 140130
- Swedish HospitalChicago, IL · Acute Care Hospital · CCN 140114
Practice locations
Addresses where Marlon B. Kleinman is enrolled with Medicare (CMS data updated 2026-10-02).
- 2520 Elisha AveZion, IL 60099 (847) 872‑4561
- 9300 Waukegan RdMorton Grove, IL 60053 (847) 675‑3900
Group practices
Medicare enrollment lists Marlon B. Kleinman as a member of this group (CMS data updated 2026-10-02).
- City of Hope Medical Group of Illinois PLLC129 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255343521 |
| 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