Jill E. Hemmelgarn, D.O.
NPI 1700221132ActiveIndividual· Internal Medicine, Nephrology· Lima, OH
Internal Medicine, Nephrology (D.O.) with Mercy Health Physicians North Specialty Care LLC and 1 other group, practicing in Lima, Ohio. Their prescriptions cost Medicare Part D more than their services did: $663,731 for 3,751 claims, against $240,632 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 10 companies reporting payments in 2025, $641.13 in all, mostly food and beverage. Lists Grand Lake Health System and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1700221132 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Apr 29, 2013 |
| Last updated in NPPES | Aug 31, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 34013268 | OH |
| Internal Medicine | 207R00000X | 5101020342 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 861 |
|---|---|
| Services billed | 3,154 across 17 procedure codes |
| Paid by Medicare | $240,632 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,751 · 8,422 30-day fills |
|---|---|
| Patients | 590 |
| Total drug cost | $663,731 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- Mercy Health Physicians North Specialty Care LLCMaumee, OH · 355 clinicians
- Mercy Health Physicians Lima Specialty Care LLCLima, OH · 253 clinicians
Hospital affiliations
- Grand Lake Health SystemSaint Marys, OH
- Mercer County Joint Township Community HospitalColdwater, OH
- Mercy Health - Tiffin HospitalTiffin, OH
- Mercy Health St Ritas Medical CenterLima, OH
- Wilson Memorial HospitalSidney, OH
Other facilities
- Davita Seneca DialysisDialysis facility · Tiffin, OH
- Fmc - Renal Care Group SidneyDialysis facility · Sidney, OH
- Fresenius Kidney Care CelinaDialysis facility · Celina, OH
- Fresenius Kidney Care LimaDialysis facility · Lima, OH
Industry payments (Open Payments)
- 2025$641.13 · 43 payments from 10 companies
- 2024$280.85 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $199.69 | 10 |
| Otsuka America Pharmaceutical, Inc. | $123.89 | 5 |
| Novo Nordisk Inc | $104.96 | 5 |
| Fresenius USA Marketing, Inc. | $58.90 | 3 |
| Amgen Inc. | $38.06 | 2 |
What the 2025 payments were for
- Food and Beverage$574.06 · 28 payments
- Education$67.07 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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