Quick answers
- Which hospitals does Leonard Dubin work at?
- Medicare's official clinician data lists Leonard Dubin at 4 hospitals: Loyola Gottlieb Memorial Hospital, Loyola University Medical Center, Northshore University Healthsystem - Evanston Hospital and Northwest Community Hospital 1. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leonard Dubin see patients?
- Medicare's clinician data lists 2 practice locations, including Northbrook, IL and Melrose Park, IL. Call before your visit to confirm the address.
- What is Leonard Dubin's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Leonard Dubin accept Medicare assignment?
- Yes. Medicare's clinician data says Leonard Dubin 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 Leonard Dubin offer telehealth?
- Medicare's clinician data says Leonard Dubin offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leonard Dubin?
- (847) 454-0301, as listed in official Medicare / NPI Registry data.
- What is Leonard Dubin's NPI number?
- 1518976737. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leonard Dubin works
Medicare's Facility Affiliation Data lists Leonard Dubin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · CCN 140010
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · CCN 140252
Practice locations
Addresses where Leonard Dubin is enrolled with Medicare (CMS data updated 2026-10-02).
- 3340 Dundee Rd, Suite 2n2Northbrook, IL 60062 (847) 454‑0301
- 675 W N Ave, Suite 401Melrose Park, IL 60160 (708) 632‑5566
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Northbrook
Clinicians with the same Medicare primary specialty in Northbrook, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518976737 |
| 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