Dang M. Nguyen, MD
NPI 1023278850ActiveIndividual· Internal Medicine, Gastroenterology· Houston, TX
Internal Medicine, Gastroenterology (MD) in Houston, Texas, trained at Baylor College of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $843,939 for 1,252 claims, against $146,738 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,105 in all, mostly food and beverage.
Overview
| NPI | 1023278850 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 16, 2008 |
| Last updated in NPPES | Apr 12, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | M6309 | 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 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 - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 395 |
|---|---|
| Services billed | 3,400 across 69 procedure codes |
| Paid by Medicare | $146,738 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,252 · 2,043 30-day fills |
|---|---|
| Patients | 433 |
| Total drug cost | $843,939 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
Hospital affiliations
- Baylor St Lukes Medical CenterHouston, TX
- Houston Methodist HospitalHouston, TX
- Houston Methodist Willowbrook HospitalHouston, TX
Industry payments (Open Payments)
- 2025$2,105 · 99 payments from 18 companies
- 2024$1,952 · 102 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $863.42 | 45 |
| Takeda Pharmaceuticals U.S.A., Inc. | $256.00 | 10 |
| Medtronic, Inc. | $200.01 | 4 |
| Janssen Biotech, Inc. | $126.74 | 6 |
| Madrigal Pharmaceuticals | $104.99 | 5 |
What the 2025 payments were for
- Food and Beverage$2,105 · 99 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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