Quick answers
- Which hospitals does Jeffrey Trimark work at?
- Medicare's official clinician data lists Jeffrey Trimark at 2 hospitals: Northshore University Healthsystem - Evanston Hospital and Swedish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey Trimark see patients?
- Medicare's clinician data lists 2 practice locations, including Evanston, IL and Lake Forest, IL. Call before your visit to confirm the address.
- What is Jeffrey Trimark's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jeffrey Trimark accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey Trimark 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 Jeffrey Trimark offer telehealth?
- Medicare's clinician data says Jeffrey Trimark offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Jeffrey Trimark's NPI number?
- 1295781680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffrey Trimark works
Medicare's Facility Affiliation Data lists Jeffrey Trimark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · CCN 140010
- Swedish HospitalChicago, IL · Acute Care Hospital · CCN 140114
Practice locations
Addresses where Jeffrey Trimark is enrolled with Medicare (CMS data updated 2026-10-02).
- 2650 Ridge AveEvanston, IL 60201
- 915 S Waukegan RdLake Forest, IL 60045
Group practices
Medicare enrollment lists Jeffrey Trimark as a member of this group (CMS data updated 2026-10-02).
- Endeavor Health Medical Group3,350 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Evanston
Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1295781680 |
| 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