Quick answers
- Where does Katherine Hertzfeld see patients?
- Medicare's clinician data lists 7 practice locations, including Toledo, OH, Bowling Green, OH and Columbus, OH. Call before your visit to confirm the address.
- What is Katherine Hertzfeld's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Katherine Hertzfeld accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Hertzfeld 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 Katherine Hertzfeld?
- (419) 241-4230, as listed in official Medicare / NPI Registry data.
- What is Katherine Hertzfeld's NPI number?
- 1568039485. 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 Katherine Hertzfeld is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1 Aurora L Gonzalez DrToledo, OH 43609 (419) 241‑4230
- 1094 N Main StBowling Green, OH 43402 (419) 373‑6687
- 1415 Jefferson AveToledo, OH 43604 (419) 214‑5700
- 199 Graceland BlvdColumbus, OH 43214 (614) 410‑2814
- 226 E Perkins AveSandusky, OH 44870 (419) 239‑2626
Group practices
Medicare enrollment lists Katherine Hertzfeld as a member of these groups (CMS data updated 2026-10-02).
- The Little Clinic of Ohio LLC210 clinicians in the group
- Neighborhood Health Association of Toledo, Inc10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Toledo
Clinicians with the same Medicare primary specialty in Toledo, OH — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568039485 |
| 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