Cuong Dinh Nguyen, MD
NPI 1659497451ActiveIndividual· Internal Medicine, Nephrology· Norman, OK
Internal Medicine, Nephrology (MD) with Norman Regional Providers Specialty Care, practicing in Norman, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $404,742 for 2,017 claims, against $162,564 paid for services in 2024. Travere Therapeutics, Inc. was the largest of 16 companies reporting payments in 2025, $688.81 in all, mostly food and beverage. Lists Duncan Regional Hospital, Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1659497451 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 22, 2007 |
| Last updated in NPPES | May 21, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 29620 | OK |
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 - Nephrology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 499 |
|---|---|
| Services billed | 1,764 across 18 procedure codes |
| Paid by Medicare | $162,564 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,017 · 4,868 30-day fills |
|---|---|
| Patients | 311 |
| Total drug cost | $404,742 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Norman Regional Providers Specialty CareNorman, OK · 142 clinicians
Hospital affiliations
- Duncan Regional Hospital, IncDuncan, OK
- Grady Memorial HospitalChickasha, OK
- Norman RegionalNorman, OK
- Purcell Municipal HospitalPurcell, OK
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
Other facilities
- Davita Chickasha DialysisDialysis facility · Chickasha, OK
- Davita Cleveland PdDialysis facility · Oklahoma City, OK
- Davita Duncan Dialysis CenterDialysis facility · Duncan, OK
- Davita Moore DialysisDialysis facility · Moore, OK
- Davita Sooner DialysisDialysis facility · Norman, OK
Industry payments (Open Payments)
- 2025$688.81 · 32 payments from 16 companies
- 2024$1,002 · 67 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $165.58 | 9 |
| Astrazeneca Pharmaceuticals LP | $86.98 | 5 |
| Calliditas Therapeutics US Inc. | $47.74 | 2 |
| Otsuka America Pharmaceutical, Inc. | $45.80 | 2 |
| Pharmacosmos Therapeutics Inc. | $45.33 | 2 |
What the 2025 payments were for
- Food and Beverage$658.52 · 31 payments
- Education$30.29 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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