Quick answers
- Which hospitals does Jill E. Hemmelgarn work at?
- Medicare's official clinician data lists Jill E. Hemmelgarn at 5 hospitals: Grand Lake Health System, Mercer County Joint Township Community Hospital, Mercy Health - Tiffin Hospital, Mercy Health St Ritas Medical Center and Wilson Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jill E. Hemmelgarn see patients?
- Medicare's clinician data lists 2 practice locations, including Tiffin, OH and Lima, OH. Call before your visit to confirm the address.
- What is Jill E. Hemmelgarn's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Jill E. Hemmelgarn accept Medicare assignment?
- Yes. Medicare's clinician data says Jill E. Hemmelgarn 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.
- Does Jill E. Hemmelgarn offer telehealth?
- Medicare's clinician data says Jill E. Hemmelgarn offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jill E. Hemmelgarn?
- (419) 455-8500, as listed in official Medicare / NPI Registry data.
- What is Jill E. Hemmelgarn's NPI number?
- 1700221132. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jill E. Hemmelgarn works
Medicare's Facility Affiliation Data lists Jill E. Hemmelgarn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grand Lake Health SystemSaint Marys, OH · Acute Care Hospital · CCN 360032
- Mercer County Joint Township Community HospitalColdwater, OH · Acute Care Hospital · CCN 360058
- Mercy Health - Tiffin HospitalTiffin, OH · Acute Care Hospital · CCN 360089
- Mercy Health St Ritas Medical CenterLima, OH · Acute Care Hospital · CCN 360066
- Wilson Memorial HospitalSidney, OH · Acute Care Hospital · CCN 360013
Practice locations
Addresses where Jill E. Hemmelgarn is enrolled with Medicare (CMS data updated 2026-10-02).
- 27 St Lawrence Dr, Suite 201Tiffin, OH 44883 (419) 455‑8500
- 750 W High St, Suite 150Lima, OH 45801 (419) 227‑1359
Group practices
Medicare enrollment lists Jill E. Hemmelgarn as a member of these groups (CMS data updated 2026-10-02).
- Mercy Health Physicians North Specialty Care LLC355 clinicians in the group
- Mercy Health Physicians Lima Specialty Care LLC253 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Tiffin
Clinicians with the same Medicare primary specialty in Tiffin, OH — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1700221132 |
| 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