George Tan, M.D.
NPI 1205071677ActiveIndividual· Internal Medicine, Gastroenterology· North Las Vegas, NV
Internal Medicine, Gastroenterology (M.D.) in North Las Vegas, Nevada, trained at Virginia Commonwealth University, School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $430,952 for 1,221 claims, against $119,330 paid for services in 2024. Janssen Biotech, Inc. was the largest of 10 companies reporting payments in 2025, $521.40 in all, mostly food and beverage.
Overview
| NPI | 1205071677 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 12, 2008 |
| Last updated in NPPES | Nov 28, 2023 |
| Certified by provider | Nov 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 20694 | NV |
| Internal Medicine | 207R00000X | A103328 | CA |
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 (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 436 |
|---|---|
| Services billed | 1,238 across 29 procedure codes |
| Paid by Medicare | $119,330 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,221 · 1,937 30-day fills |
|---|---|
| Patients | 689 |
| Total drug cost | $430,952 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Virginia Commonwealth University, School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Gastroenterology |
Hospital affiliations
- Mesa View Regional HospitalMesquite, NV
- Summerlin Hospital Medical CenterLas Vegas, NV
Industry payments (Open Payments)
- 2025$521.40 · 24 payments from 10 companies
- 2024$482.81 · 20 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $148.33 | 7 |
| Abbvie Inc. | $103.75 | 5 |
| Genzyme Corporation | $56.82 | 2 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $52.80 | 3 |
| Madrigal Pharmaceuticals | $42.77 | 1 |
What the 2025 payments were for
- Food and Beverage$436.41 · 23 payments
- Education$84.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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