Quick answers
- Which hospitals does Zainulabuddin Syed work at?
- Medicare's official clinician data lists Zainulabuddin Syed at 3 hospitals: Advocate Good Samaritan Hospital, Advocate Illinois Masonic Medical Center and Edward Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Zainulabuddin Syed see patients?
- Medicare's clinician data lists 1 practice location in Downers Grove, IL. Call before your visit to confirm the address.
- What is Zainulabuddin Syed's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Zainulabuddin Syed accept Medicare assignment?
- Yes. Medicare's clinician data says Zainulabuddin Syed 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 Zainulabuddin Syed offer telehealth?
- Medicare's clinician data says Zainulabuddin Syed offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Zainulabuddin Syed?
- (630) 968-4790, as listed in official Medicare / NPI Registry data.
- What is Zainulabuddin Syed's NPI number?
- 1609876424. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zainulabuddin Syed works
Medicare's Facility Affiliation Data lists Zainulabuddin Syed at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · CCN 140182
- Edward HospitalNaperville, IL · Acute Care Hospital · CCN 140231
Practice locations
Addresses where Zainulabuddin Syed is enrolled with Medicare (CMS data updated 2026-10-02).
- 4121 Fairview Ave, Suite L1Downers Grove, IL 60515 (630) 968‑4790
Group practices
Medicare enrollment lists Zainulabuddin Syed as a member of this group (CMS data updated 2026-10-02).
- Fairview Ogden Medical Group Ltd.2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Downers Grove
Clinicians with the same Medicare primary specialty in Downers Grove, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1973 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609876424 |
| 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