Quick answers
- Where does Catherine Donnerstag see patients?
- Medicare's clinician data lists 3 practice locations, including Baltimore, MD, Hyattsville, MD and Lynnwood, WA. Call before your visit to confirm the address.
- What is Catherine Donnerstag's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Catherine Donnerstag accept Medicare assignment?
- Medicare's clinician data says Catherine Donnerstag may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Catherine Donnerstag?
- (667) 207-3552, as listed in official Medicare / NPI Registry data.
- What is Catherine Donnerstag's NPI number?
- 1700557477. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Catherine Donnerstag is enrolled with Medicare (CMS data updated 2026-10-02).
- 2232 E Monument StBaltimore, MD 21205 (667) 207‑3552
- 3210 Powder Mill RdHyattsville, MD 20783 (301) 937‑3939
- 4610 200th St SW, Suite JLynnwood, WA 98036 (253) 600‑9339
Group practices
Medicare enrollment lists Catherine Donnerstag as a member of these groups (CMS data updated 2026-10-02).
- Toller Enterprises, LLC64 clinicians in the group
- New Era Mental Health PLLC4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1700557477 |
| 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
- 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