Anthony W. Zydlewski, MD
NPI 1720077431ActiveIndividual· Internal Medicine, Nephrology· Norfolk, VA
Internal Medicine, Nephrology (MD) in Norfolk, Virginia, trained at Tufts University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $398,991 for 1,480 claims, against $149,432 paid for services in 2024. Ardelyx, Inc. reported $30.24 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1720077431 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 14, 2005 |
| Last updated in NPPES | Oct 24, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 0101057450 | VA |
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 (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 420 |
|---|---|
| Services billed | 1,842 across 24 procedure codes |
| Paid by Medicare | $149,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,480 · 3,455 30-day fills |
|---|---|
| Patients | 258 |
| Total drug cost | $398,991 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Nephrology Associates of Tidewater LtdSuffolk, VA · 24 clinicians
Hospital affiliations
- Riverside Shore Memorial HospitalOnancock, VA
- Sentara Leigh HospitalNorfolk, VA
- Sentara Norfolk General HospitalNorfolk, VA
- Sentara Princess Anne HospitalVirginia Beach, VA
- Sentara Virginia Beach General HospitalVirginia Beach, VA
Other facilities
- Fresenius Kidney Care Kempsville HomeDialysis facility · Norfolk, VA
- Kempsville Dialysis CenterDialysis facility · Norfolk, VA
Industry payments (Open Payments)
- 2024$30.24 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $30.24 | 1 |
What the 2024 payments were for
- Food and Beverage$30.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 nephrologists in Norfolk · All nephrologists in Virginia