Alissar El Chediak, MD
NPI 1609497700ActiveIndividual· Internal Medicine, Nephrology· Dallas, TX
Internal Medicine, Nephrology (MD) with University of Texas Southwestern Medical Center at Dallas, practicing in Dallas, Texas. Their prescriptions cost Medicare Part D more than their services did: $91,688 for 353 claims, against $39,189 paid for services in 2024. Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $266.84 in all, mostly food and beverage. Lists Ut of Texas Southwestern University Hospital - William P. Clements Jr. as a hospital affiliation.
Overview
| NPI | 1609497700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 29, 2020 |
| Last updated in NPPES | Mar 13, 2026 |
| Certified by provider | Mar 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 47908 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 376 across 5 procedure codes |
| Paid by Medicare | $39,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 353 · 587 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $91,688 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- University of Texas Southwestern Medical Center at DallasDallas, TX · 3,187 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$266.84 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $138.15 | 1 |
| One Lambda, Inc. | $128.69 | 1 |
What the 2025 payments were for
- Food and Beverage$266.84 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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