Quick answers
- Where does Tobin R. Efferen see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL. Call before your visit to confirm the address.
- What is Tobin R. Efferen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Tobin R. Efferen accept Medicare assignment?
- Yes. Medicare's clinician data says Tobin R. Efferen 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 Tobin R. Efferen?
- (773) 542-2000, as listed in official Medicare / NPI Registry data.
- What is Tobin R. Efferen's NPI number?
- 1780778472. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Tobin R. Efferen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1500 S Fairfield AveChicago, IL 60608 (773) 542‑2000
- 2701 W 68th StChicago, IL 60629 (773) 884‑9000
Group practices
Medicare enrollment lists Tobin R. Efferen as a member of this group (CMS data updated 2026-10-02).
- Cepamerica Illinois LLP499 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780778472 |
| 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
- 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