Nathaniel P. Fleischner, M.D.
NPI 1083880926ActiveIndividual· Internal Medicine· Royal Palm Beach, FL
Internal Medicine (M.D.) in Royal Palm Beach, Florida, trained at Boston University School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $699,135 for 8,447 claims, against $22,306 paid for services in 2024. Novo Nordisk Inc was the largest of 6 companies reporting payments in 2025, $183.58 in all, mostly food and beverage.
Overview
| NPI | 1083880926 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 30, 2008 |
| Last updated in NPPES | Jun 23, 2025 |
| Certified by provider | Jun 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | ME105685 | FL |
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 - Internal Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 351 across 23 procedure codes |
| Paid by Medicare | $22,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,447 · 17,807 30-day fills |
|---|---|
| Patients | 673 |
| Total drug cost | $699,135 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Internal Medicine |
Medical group
- Accountable Teaching Services LLCWellington, FL · 21 clinicians
Hospital affiliations
- HCA Florida Jfk HospitalAtlantis, FL
- Wellington Regional Medical CenterWellington, FL
Other facilities
- Pinnacle Home CareHome health agency · West Palm Beach, FL
- USA Home Health Services, Inc.Home health agency · Delray Beach, FL
Industry payments (Open Payments)
- 2025$183.58 · 9 payments from 6 companies
- 2024$157.40 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $48.62 | 3 |
| Lilly USA, LLC | $46.92 | 2 |
| Exact Sciences Corporation | $28.31 | 1 |
| Abbott Laboratories | $23.70 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $19.56 | 1 |
What the 2025 payments were for
- Food and Beverage$183.58 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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