Nicholas J. Mandalakas, M.D.
NPI 1811988868ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Dover, DE
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Dover, Delaware, trained at Jefferson Medical College of Thomas Jefferson University (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $442,276 for 1,709 claims, against $269,410 paid for services in 2024. Medtronic, Inc. was the largest of 15 companies reporting payments in 2025, $733.71 in all, mostly food and beverage.
Overview
| NPI | 1811988868 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 31, 2005 |
| Last updated in NPPES | Mar 3, 2022 |
| Certified by provider | Mar 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | C1-0024586 | DE |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | C1-0024586 | DE |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD037192E | PA |
| Internal Medicine, Clinical Cardiac Electrophysiology | 207RC0001X | MD037192E | PA |
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 - Cardiovascular Disease (Cardiology) (DE); Practitioner - Cardiac Electrophysiology (FL); Practitioner - Cardiovascular Disease (Cardiology) (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,906 |
|---|---|
| Services billed | 5,875 across 74 procedure codes |
| Paid by Medicare | $269,410 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,709 · 4,441 30-day fills |
|---|---|
| Patients | 251 |
| Total drug cost | $442,276 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Cardiac Electrophysiology |
Medical groups
- Bayhealth Medical Center, IncDover, DE · 413 clinicians
- Cardiology Physicians, LLCNewark, DE · 49 clinicians
Hospital affiliations
- Bayhealth Hospital, Sussex CampusMilford, DE
- Bayhealth Medical Center, Kent CampusDover, DE
Industry payments (Open Payments)
- 2025$733.71 · 28 payments from 15 companies
- 2024$3,450 · 45 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $230.22 | 8 |
| Biotronik Inc. | $136.05 | 3 |
| Canon Medical Systems USA, Inc. | $51.99 | 1 |
| Pfizer Inc. | $41.61 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $37.37 | 2 |
What the 2025 payments were for
- Food and Beverage$623.80 · 27 payments
- Travel and Lodging$109.91 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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