Dat D. Nguyen, MD
NPI 1982698528ActiveIndividual· Internal Medicine, Pulmonary Disease· Kingman, AZ
Internal Medicine, Pulmonary Disease (MD) with Inpatient Specialists of California PC and 4 other groups, practicing in Kingman, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,382,691 for 1,523 claims, against $74,277 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 2 companies reporting payments in 2025, $95.98 in all, mostly education. Lists Adventist Health Ukiah Valley and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1982698528 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 9, 2005 |
| Last updated in NPPES | Oct 8, 2025 |
| Certified by provider | Oct 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 36837 | AZ |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 36837 | AZ |
| Internal Medicine, Critical Care Medicine | 207RC0200X | MD2025-0009 | NM |
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 - Critical Care (Intensivists) (AZ); Practitioner - Critical Care (Intensivists) (CA); Practitioner - Internal Medicine (ID); Practitioner - Internal Medicine (MT); Practitioner - Critical Care (Intensivists) (NM); Practitioner - Internal Medicine (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 412 |
|---|---|
| Services billed | 1,002 across 26 procedure codes |
| Paid by Medicare | $74,277 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,523 · 2,200 30-day fills |
|---|---|
| Patients | 261 |
| Total drug cost | $1,382,691 |
| Generic share | 46% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical groups
- Inpatient Specialists of California PCOakdale, CA · 385 clinicians
- Kingman Healthcare IncKingman, AZ · 186 clinicians
- Telemedicine Group PCRoseville, CA · 100 clinicians
- Sound Physicians Intensivists of Washington PLLCSpringfield, OR · 84 clinicians
- Apogee Medical Group IncKingman, AZ · 82 clinicians
Hospital affiliations
- Adventist Health Ukiah ValleyUkiah, CA
- Community Hospital of San BernardinoSan Bernardino, CA
- Kingman Regional Medical CenterKingman, AZ
- McKenzie-Willamette Medical CenterSpringfield, OR
- Providence St Mary Medical CenterApple Valley, CA
Industry payments (Open Payments)
- 2025$95.98 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sanofi-Aventis U.S. LLC | $59.80 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $36.18 | 2 |
What the 2025 payments were for
- Education$59.80 · 1 payment
- Food and Beverage$36.18 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records