Melvin K. Lau, MD
NPI 1407006836ActiveIndividual· Internal Medicine, Gastroenterology· Round Rock, TX
Internal Medicine, Gastroenterology (MD) in Round Rock, Texas, trained at University of Texas Medical School at San Antonio (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $201,390 for 218 claims, against $50,879 paid for services in 2024. Olympus America Inc. was the largest of 2 companies reporting payments in 2024, $46.43 in all, mostly food and beverage.
Overview
| NPI | 1407006836 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 22, 2008 |
| Last updated in NPPES | Oct 1, 2020 |
| Certified by provider | Oct 1, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | M6250 | TX |
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 - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 334 |
|---|---|
| Services billed | 497 across 30 procedure codes |
| Paid by Medicare | $50,879 |
Part D prescriptions in 2024
| Prescriptions (claims) | 218 · 406 30-day fills |
|---|---|
| Patients | 97 |
| Total drug cost | $201,390 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Gastroenterology |
Medical group
- Scott and White ClinicCollege Station, TX · 2,461 clinicians
Hospital affiliations
- Baylor Scott & White Medical Center - Round RockRound Rock, TX
- Baylor Scott & White Medical Center PflugervillePflugerville, TX
Industry payments (Open Payments)
- 2024$46.43 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Olympus America Inc. | $23.84 | 1 |
| Janssen Biotech, Inc. | $22.59 | 1 |
What the 2024 payments were for
- Food and Beverage$46.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 gastroenterologists in Round Rock · All gastroenterologists in Texas