Jonathan Slater, M.D.
NPI 1992788160ActiveIndividual· Internal Medicine, Nephrology· Springfield, MA
Internal Medicine, Nephrology (M.D.) in Springfield, Massachusetts, trained at University of Connecticut School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $906,092 for 3,891 claims, against $337,186 paid for services in 2024. Travere Therapeutics, Inc. was the largest of 9 companies reporting payments in 2025, $393.92 in all, mostly food and beverage.
Overview
| NPI | 1992788160 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 22, 2005 |
| Last updated in NPPES | Feb 6, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 81014 | MA |
| Internal Medicine, Nephrology | 207RN0300X | 032013 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CT); Practitioner - Nephrology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,031 |
|---|---|
| Services billed | 6,524 across 25 procedure codes |
| Paid by Medicare | $337,186 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,891 · 8,093 30-day fills |
|---|---|
| Patients | 698 |
| Total drug cost | $906,092 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Renal and Transplant Assoc of the Northeast PCSpringfield, MA · 7 clinicians
Hospital affiliations
- Baystate Medical CenterSpringfield, MA
- Baystate Wing HospitalPalmer, MA
- Cooley Dickinson Hospital Inc,theNorthampton, MA
- Holyoke Medical CenterHolyoke, MA
- Mercy Medical CtrSpringfield, MA
Other facilities
- Ara-Holyoke Dialysis LLCDialysis facility · Holyoke, MA
- Ara-Ludlow Dialysis, LLCDialysis facility · Ludlow, MA
- Dialysis Center of Western MassachusettsDialysis facility · Chicopee, MA
- Heritage Dialysis Center, LLCDialysis facility · Agawam, MA
- Springfield Dialysis CenterDialysis facility · Springfield, MA
Industry payments (Open Payments)
- 2025$393.92 · 15 payments from 9 companies
- 2024$16,850 · 36 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $169.40 | 6 |
| Novo Nordisk Inc | $51.44 | 2 |
| Mallinckrodt Hospital Products Inc. | $34.99 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $31.44 | 1 |
| Scpharmaceuticals Inc. | $24.00 | 1 |
What the 2025 payments were for
- Food and Beverage$368.31 · 9 payments
- Education$25.61 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 nephrologists in Springfield · All nephrologists in Massachusetts