Quick answers
- Which hospitals does Jeffrey C. Tanzi work at?
- Medicare's official clinician data lists Jeffrey C. Tanzi at 2 hospitals: Morris Hospital & Healthcare Centers and OSF Saint Elizabeth MDL Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey C. Tanzi see patients?
- Medicare's clinician data lists 1 practice location in Ottawa, IL. Call before your visit to confirm the address.
- What is Jeffrey C. Tanzi's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jeffrey C. Tanzi accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey C. Tanzi 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 Jeffrey C. Tanzi?
- (815) 433-9200, as listed in official Medicare / NPI Registry data.
- What is Jeffrey C. Tanzi's NPI number?
- 1891706107. 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 C. Tanzi works
Medicare's Facility Affiliation Data lists Jeffrey C. Tanzi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Morris Hospital & Healthcare CentersMorris, IL · Acute Care Hospital · CCN 140101
- OSF Saint Elizabeth MDL CenterPeru, IL · Acute Care Hospital · CCN 140110
Practice locations
Addresses where Jeffrey C. Tanzi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1306 Gemini Cir, Suite 1Ottawa, IL 61350 (815) 433‑9200
Group practices
Medicare enrollment lists Jeffrey C. Tanzi as a member of this group (CMS data updated 2026-10-02).
- Morris Hospital115 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Ottawa
Clinicians with the same Medicare primary specialty in Ottawa, IL — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891706107 |
| 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