Quick answers
- Which hospitals does Christopher J. Differding work at?
- Medicare's official clinician data lists Christopher J. Differding at 3 hospitals: OSF Saint Clare Medical Center, OSF Saint Elizabeth MDL Ctr and OSF Saint Paul Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christopher J. Differding see patients?
- Medicare's clinician data lists 3 practice locations, including Ottawa, IL. Call before your visit to confirm the address.
- What is Christopher J. Differding's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Christopher J. Differding accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher J. Differding 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 Christopher J. Differding?
- (815) 434-1130, as listed in official Medicare / NPI Registry data.
- What is Christopher J. Differding's NPI number?
- 1295002715. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christopher J. Differding works
Medicare's Facility Affiliation Data lists Christopher J. Differding at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OSF Saint Clare Medical CenterPrinceton, IL · Critical Access Hospital · CCN 141337
- OSF Saint Elizabeth MDL CtrPeru, IL · Acute Care Hospital · CCN 140110
- OSF Saint Paul Medical CenterMendota, IL · Critical Access Hospital · CCN 141310
Practice locations
Addresses where Christopher J. Differding is enrolled with Medicare (CMS data updated 2026-10-02).
- 505 College AveOttawa, IL 61350 (815) 434‑1130
- 704 E Glover StOttawa, IL 61350 (815) 434‑7144
- 717 E Edna RdOttawa, IL 61350 (815) 433‑3366
Group practices
Medicare enrollment lists Christopher J. Differding as a member of these groups (CMS data updated 2026-10-02).
- T4 Medical PLLC32 clinicians in the group
- Pai Participant 27, PC9 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Ottawa
Clinicians with the same Medicare primary specialty in Ottawa, IL — not a recommendation.
Clinician information
| Graduation year | 2011 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295002715 |
| 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