Quick answers
- Which hospitals does John E. Whalen work at?
- Medicare's official clinician data lists John E. Whalen at 5 hospitals: Finley Hospital, Lafayette Hospital and Clinics, MercyOne Clinton Medical Center, Regional Medical Center and Southwest Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. Whalen see patients?
- Medicare's clinician data lists 15 practice locations, including Manchester, IA, Dubuque, IA and Richland Center, WI. Call before your visit to confirm the address.
- What is John E. Whalen's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does John E. Whalen accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Whalen 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 John E. Whalen?
- (563) 589-4835, as listed in official Medicare / NPI Registry data.
- What is John E. Whalen's NPI number?
- 1285694802. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John E. Whalen works
Medicare's Facility Affiliation Data lists John E. Whalen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Finley HospitalDubuque, IA · Acute Care Hospital · CCN 160117
- Lafayette Hospital and ClinicsDarlington, WI · Critical Access Hospital · CCN 521312
- MercyOne Clinton Medical CenterClinton, IA · Acute Care Hospital · CCN 160080
- Regional Medical CenterManchester, IA · Critical Access Hospital · CCN 161343
- Southwest Health CenterPlatteville, WI · Critical Access Hospital · CCN 521354
Practice locations
Addresses where John E. Whalen is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 15; the Medicare profile lists all.
- 107 S 11th StManchester, IA 52057 (563) 589‑4835
- 107 S 11th St, Suite 2Manchester, IA 52057 (563) 589‑4835
- 1500 Delhi St, Suite 2100Dubuque, IA 52001 (563) 589‑4033
- 1515 Delhi St, Suite 100Dubuque, IA 52001 (563) 557‑9111
- 190 N Orange St, Suite 1Richland Center, WI 53581 (563) 589‑4835
Group practices
Medicare enrollment lists John E. Whalen as a member of this group (CMS data updated 2026-10-02).
- Iowa Physicians Clinic Medical Foundation1,246 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1973 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285694802 |
| 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