Quick answers
- Which hospitals does Loreen A. Herwaldt work at?
- Medicare's official clinician data lists Loreen A. Herwaldt at 1 hospital: University of Iowa Hospital & Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Loreen A. Herwaldt see patients?
- Medicare's clinician data lists 1 practice location in Iowa City, IA. Call before your visit to confirm the address.
- What is Loreen A. Herwaldt's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Loreen A. Herwaldt accept Medicare assignment?
- Yes. Medicare's clinician data says Loreen A. Herwaldt 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 Loreen A. Herwaldt?
- (319) 356-1616, as listed in official Medicare / NPI Registry data.
- What is Loreen A. Herwaldt's NPI number?
- 1811979131. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Loreen A. Herwaldt works
Medicare's Facility Affiliation Data lists Loreen A. Herwaldt at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Iowa Hospital & ClinicsIowa City, IA · Acute Care Hospital · CCN 160058
Practice locations
Addresses where Loreen A. Herwaldt is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Hawkins DrIowa City, IA 52242 (319) 356‑1616
Group practices
Medicare enrollment lists Loreen A. Herwaldt as a member of this group (CMS data updated 2026-10-02).
- State University of Iowa1,897 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Iowa City
Clinicians with the same Medicare primary specialty in Iowa City, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811979131 |
| 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