Quick answers
- Which hospitals does Eric C. Johannsen work at?
- Medicare's official clinician data lists Eric C. Johannsen at 1 hospital: University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Eric C. Johannsen see patients?
- Medicare's clinician data lists 2 practice locations, including Windsor, WI and Madison, WI. Call before your visit to confirm the address.
- What is Eric C. Johannsen's specialty?
- Medicare lists Infectious Disease as the primary specialty.
- Does Eric C. Johannsen accept Medicare assignment?
- Yes. Medicare's clinician data says Eric C. Johannsen 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 Eric C. Johannsen?
- (608) 846-3741, as listed in official Medicare / NPI Registry data.
- What is Eric C. Johannsen's NPI number?
- 1437115680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Eric C. Johannsen works
Medicare's Facility Affiliation Data lists Eric C. Johannsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
Practice locations
Addresses where Eric C. Johannsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 4131 Meridian DrWindsor, WI 53598 (608) 846‑3741
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
Group practices
Medicare enrollment lists Eric C. Johannsen as a member of this group (CMS data updated 2026-10-02).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437115680 |
| 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