Quick answers
- Which hospitals does James L. Niese work at?
- Medicare's official clinician data lists James L. Niese at 2 hospitals: Mercy Health - Defiance Hospital and Mercy Health St Ritas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James L. Niese see patients?
- Medicare's clinician data lists 1 practice location in Lima, OH. Call before your visit to confirm the address.
- What is James L. Niese's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does James L. Niese accept Medicare assignment?
- Yes. Medicare's clinician data says James L. Niese 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 James L. Niese's NPI number?
- 1891100376. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James L. Niese works
Medicare's Facility Affiliation Data lists James L. Niese at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Health - Defiance HospitalDefiance, OH · Acute Care Hospital · CCN 360270
- Mercy Health St Ritas Medical CenterLima, OH · Acute Care Hospital · CCN 360066
Practice locations
Addresses where James L. Niese is enrolled with Medicare (CMS data updated 2026-10-02).
- 770 W High St, Suite 450Lima, OH 45801
Group practices
Medicare enrollment lists James L. Niese as a member of this group (CMS data updated 2026-10-02).
- Mercy Health Physicians Lima, LLC55 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lima
Clinicians with the same Medicare primary specialty in Lima, OH — not a recommendation.
Clinician information
| Medical school | University Of Toledo College Of Medicine |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891100376 |
| 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