Quick answers
- Which hospitals does Daniel R. Retzer work at?
- Medicare's official clinician data lists Daniel R. Retzer at 5 hospitals: OSF Saint Katharine Medical Center, Rochelle Community Hospital, Saint Anthony Medical Center, University of WI Hospitals & Clinics Authority and UW Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel R. Retzer see patients?
- Medicare's clinician data lists 5 practice locations, including Byron, IL, Rochelle, IL and Davis Junction, IL. Call before your visit to confirm the address.
- What is Daniel R. Retzer's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Daniel R. Retzer accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel R. Retzer 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 Daniel R. Retzer?
- (779) 696-1300, as listed in official Medicare / NPI Registry data.
- What is Daniel R. Retzer's NPI number?
- 1063455079. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel R. Retzer works
Medicare's Facility Affiliation Data lists Daniel R. Retzer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OSF Saint Katharine Medical CenterDixon, IL · Acute Care Hospital · CCN 140012
- Rochelle Community HospitalRochelle, IL · Critical Access Hospital · CCN 141312
- Saint Anthony Medical CenterRockford, IL · Acute Care Hospital · CCN 140233
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
- UW HealthRockford, IL · Acute Care Hospital · CCN 140228
Practice locations
Addresses where Daniel R. Retzer is enrolled with Medicare (CMS data updated 2026-10-02).
- 230 W Blackhawk Dr, Sa ByronByron, IL 61010 (779) 696‑1300
- 380 E Il Route 38, Sa RochelleRochelle, IL 61068 (779) 696‑9050
- 5665 N Junction Way, Sa Davis JunctionDavis Junction, IL 61020 (779) 696‑9200
- 6824 Newburg Rd, Sa ValleyRockford, IL 61108 (779) 696‑7610
- 815 Marchesano DrRockford, IL 61102 (779) 696‑5950
Group practices
Medicare enrollment lists Daniel R. Retzer as a member of this group (CMS data updated 2026-10-02).
- Swedishamerican Hospital389 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Byron
Clinicians with the same Medicare primary specialty in Byron, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063455079 |
| 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