Eduardo S. Haddad, MD
NPI 1124113022ActiveIndividual· Internal Medicine, Nephrology· North Andover, MA
Internal Medicine, Nephrology (MD) with Riverside Nephrology PC, practicing in North Andover, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $699,343 for 4,119 claims, against $188,570 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 2 companies reporting payments in 2025, $105.21 in all, mostly food and beverage. Lists Anna Jaques Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1124113022 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 4, 2006 |
| Last updated in NPPES | Dec 22, 2020 |
| Certified by provider | Dec 22, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 46060 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 329 |
|---|---|
| Services billed | 1,520 across 16 procedure codes |
| Paid by Medicare | $188,570 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,119 · 9,187 30-day fills |
|---|---|
| Patients | 362 |
| Total drug cost | $699,343 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Riverside Nephrology PCNorth Andover, MA · 3 clinicians
Hospital affiliations
- Anna Jaques HospitalNewburyport, MA
- Holy Family HospitalMethuen, MA
- Merrimack Health Lawrence HospitalLawrence, MA
Other facilities
- Davita North Andover Renal at HomeDialysis facility · North Andover, MA
- Davita Wellington Circle Dialysis CenterDialysis facility · Medford, MA
- Fresenius Medical Care of MethuenDialysis facility · Methuen, MA
Industry payments (Open Payments)
- 2025$105.21 · 2 payments from 2 companies
- 2024$249.28 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $82.55 | 1 |
| Vantive US Healthcare LLC | $22.66 | 1 |
What the 2025 payments were for
- Food and Beverage$105.21 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in North Andover
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- 1275628174