Quick answers
- Which hospitals does Allan B. Zelinger work at?
- Medicare's official clinician data lists Allan B. Zelinger at 1 hospital: Advocate Christ Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allan B. Zelinger see patients?
- Medicare's clinician data lists 4 practice locations, including Buffalo Grove, IL, Oak Lawn, IL and Chicago, IL. Call before your visit to confirm the address.
- What is Allan B. Zelinger's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Allan B. Zelinger accept Medicare assignment?
- Yes. Medicare's clinician data says Allan B. Zelinger 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 Allan B. Zelinger?
- (847) 459-1160, as listed in official Medicare / NPI Registry data.
- What is Allan B. Zelinger's NPI number?
- 1902899743. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allan B. Zelinger works
Medicare's Facility Affiliation Data lists Allan B. Zelinger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
Practice locations
Addresses where Allan B. Zelinger is enrolled with Medicare (CMS data updated 2026-10-02).
- 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160
- 4440 W 95th StOak Lawn, IL 60453
- 836 W Wellington, Suite G346Chicago, IL 60657 (773) 296‑7147
- 836 W Wellington AveChicago, IL 60657
Group practices
Medicare enrollment lists Allan B. Zelinger as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Illinois →
Other cardiologists in Buffalo Grove
Clinicians with the same Medicare primary specialty in Buffalo Grove, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902899743 |
| 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