Quick answers
- Which hospitals does Cathleen M. Ammann work at?
- Medicare's official clinician data lists Cathleen M. Ammann at 2 hospitals: Portsmouth Regional Hospital and Wentworth-Douglass Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cathleen M. Ammann see patients?
- Medicare's clinician data lists 1 practice location in Dover, NH. Call before your visit to confirm the address.
- What is Cathleen M. Ammann's specialty?
- Medicare lists Hospitalist as the primary specialty.
- Does Cathleen M. Ammann accept Medicare assignment?
- Yes. Medicare's clinician data says Cathleen M. Ammann 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 Cathleen M. Ammann's NPI number?
- 1821179540. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cathleen M. Ammann works
Medicare's Facility Affiliation Data lists Cathleen M. Ammann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · CCN 300029
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · CCN 300018
Practice locations
Addresses where Cathleen M. Ammann is enrolled with Medicare (CMS data updated 2026-10-02).
- 789 Central AveDover, NH 03820
Group practices
Medicare enrollment lists Cathleen M. Ammann as a member of this group (CMS data updated 2026-10-02).
- Wentworth Douglass Physician Corporation429 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Dover
Clinicians with the same Medicare primary specialty in Dover, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821179540 |
| 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