Quick answers
- Which hospitals does Hao Zhang work at?
- Medicare's official clinician data lists Hao Zhang at 5 hospitals: Loyola Gottlieb Memorial Hospital, Loyola University Medical Center, Northwestern Medicine Central Dupage Hospital, Northwestern Medicine McHenry and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hao Zhang see patients?
- Medicare's clinician data lists 11 practice locations, including Huntley, IL, Algonquin, IL and Maywood, IL. Call before your visit to confirm the address.
- What is Hao Zhang's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Hao Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Hao Zhang 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 Hao Zhang?
- (847) 535-6083, as listed in official Medicare / NPI Registry data.
- What is Hao Zhang's NPI number?
- 1346637485. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hao Zhang works
Medicare's Facility Affiliation Data lists Hao Zhang 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
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · CCN 140116
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
Practice locations
Addresses where Hao Zhang is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 10350 Haligus Rd, Suite 210Huntley, IL 60142 (847) 535‑6083
- 10400 Haligus RdHuntley, IL 60142
- 1465 Commerce DrAlgonquin, IL 60102 (847) 802‑7090
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑8372
- 250 E Superior, 2304 Nwmff Prent Wmn HospChicago, IL 60611 (312) 472‑3660
Group practices
Medicare enrollment lists Hao Zhang as a member of these groups (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Loyola University Medical Center953 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346637485 |
| 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