Quick answers
- Which hospitals does Gary J. Martin work at?
- Medicare's official clinician data lists Gary J. Martin at 4 hospitals: Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital, Northwestern Memorial Hospital and Palos Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary J. Martin see patients?
- Medicare's clinician data lists 6 practice locations, including Chicago, IL, St Charles, IL and Deerfield, IL. Call before your visit to confirm the address.
- What is Gary J. Martin's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Gary J. Martin accept Medicare assignment?
- Yes. Medicare's clinician data says Gary J. Martin 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 Gary J. Martin offer telehealth?
- Medicare's clinician data says Gary J. Martin offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gary J. Martin?
- (630) 377-6500, as listed in official Medicare / NPI Registry data.
- What is Gary J. Martin's NPI number?
- 1356359756. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary J. Martin works
Medicare's Facility Affiliation Data lists Gary J. Martin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · CCN 140130
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · CCN 140062
Practice locations
Addresses where Gary J. Martin is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1333 W Belmont AveChicago, IL 60657
- 2900 Foxfield Rd, Suite 100St Charles, IL 60174 (630) 377‑6500
- 350 S Waukegan, Suite 150Deerfield, IL 60015 (312) 926‑3107
- 350 S Waukegan RdDeerfield, IL 60015 (312) 926‑6146
- 675 N Saint Clair StChicago, IL 60611
Group practices
Medicare enrollment lists Gary J. Martin as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
Other internal medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356359756 |
| 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