Quick answers
- Which hospitals does Justin B. Gan work at?
- Medicare's official clinician data lists Justin B. Gan at 4 hospitals: Advocate Lutheran General Hospital, Northshore University Healthsystem - Evanston Hospital, Northwest Community Hospital 1 and Swedish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Justin B. Gan see patients?
- Medicare's clinician data lists 6 practice locations, including Glenview, IL, Vernon Hills, IL and Evanston, IL. Call before your visit to confirm the address.
- What is Justin B. Gan's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Justin B. Gan accept Medicare assignment?
- Yes. Medicare's clinician data says Justin B. Gan 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 Justin B. Gan offer telehealth?
- Medicare's clinician data says Justin B. Gan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Justin B. Gan?
- (847) 941-7600, as listed in official Medicare / NPI Registry data.
- What is Justin B. Gan's NPI number?
- 1851549067. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Justin B. Gan works
Medicare's Facility Affiliation Data lists Justin B. Gan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · CCN 140223
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · CCN 140010
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · CCN 140252
- Swedish HospitalChicago, IL · Acute Care Hospital · CCN 140114
Practice locations
Addresses where Justin B. Gan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2100 Pfingsten RdGlenview, IL 60026
- 225 N Milwaukee AveVernon Hills, IL 60061 (847) 941‑7600
- 2650 Ridge AveEvanston, IL 60201
- 767 Park Ave W, Suite 110Highland Park, IL 60035 (847) 926‑6810
- 777 Park Ave WHighland Park, IL 60035
Group practices
Medicare enrollment lists Justin B. Gan as a member of this group (CMS data updated 2026-10-02).
- Endeavor Health Medical Group3,350 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Glenview
Clinicians with the same Medicare primary specialty in Glenview, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851549067 |
| 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