Quick answers
- Which hospitals does Mattie J. Testroet work at?
- Medicare's official clinician data lists Mattie J. Testroet at 5 hospitals: Allen Hospital, Buchanan County Health Center, Community Memorial Hospital Medical Center, Grundy County Memorial Hospital and Waverly Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mattie J. Testroet see patients?
- Medicare's clinician data lists 1 practice location in Waterloo, IA. Call before your visit to confirm the address.
- What is Mattie J. Testroet's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mattie J. Testroet accept Medicare assignment?
- Medicare's clinician data says Mattie J. Testroet may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Mattie J. Testroet offer telehealth?
- Medicare's clinician data says Mattie J. Testroet offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mattie J. Testroet?
- (319) 233-2701, as listed in official Medicare / NPI Registry data.
- What is Mattie J. Testroet's NPI number?
- 1356723399. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mattie J. Testroet works
Medicare's Facility Affiliation Data lists Mattie J. Testroet at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Allen HospitalWaterloo, IA · Acute Care Hospital · CCN 160110
- Buchanan County Health CenterIndependence, IA · Critical Access Hospital · CCN 161335
- Community Memorial Hospital Medical CenterSumner, IA · Critical Access Hospital · CCN 161320
- Grundy County Memorial HospitalGrundy Center, IA · Critical Access Hospital · CCN 161303
- Waverly Health CenterWaverly, IA · Critical Access Hospital · CCN 161339
Practice locations
Addresses where Mattie J. Testroet is enrolled with Medicare (CMS data updated 2026-10-02).
- 3530 W 4th St, Uph Waterloo Community CancerWaterloo, IA 50701 (319) 233‑2701
Group practices
Medicare enrollment lists Mattie J. Testroet as a member of this group (CMS data updated 2026-10-02).
- Allen Memorial Hospital Corporation157 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Waterloo
Clinicians with the same Medicare primary specialty in Waterloo, IA — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356723399 |
| 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