Han L. Tan, MD
NPI 1629011440ActiveIndividual· Internal Medicine, Cardiovascular Disease· McKinney, TX
Internal Medicine, Cardiovascular Disease (MD) in McKinney, Texas, trained at Stanford University School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $1,511,567 for 6,168 claims, against $319,167 paid for services in 2024. Pfizer Inc. was the largest of 20 companies reporting payments in 2025, $2,195 in all, mostly food and beverage.
Overview
| NPI | 1629011440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 13, 2006 |
| Last updated in NPPES | Jan 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | K8512 | 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 - Cardiovascular Disease (Cardiology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,579 |
|---|---|
| Services billed | 4,398 across 29 procedure codes |
| Paid by Medicare | $319,167 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,168 · 14,397 30-day fills |
|---|---|
| Patients | 779 |
| Total drug cost | $1,511,567 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical group
- Cardiology Specialists of North Texas PLLCDallas, TX · 68 clinicians
Hospital affiliations
- Medical Center of McKinneyMcKinney, TX
- Medical City Dallas HospitalDallas, TX
- Medical City Las ColinasIrving, TX
- Medical City PlanoPlano, TX
Industry payments (Open Payments)
- 2025$2,195 · 74 payments from 20 companies
- 2024$2,380 · 69 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $284.97 | 11 |
| Heartflow, Inc. | $271.72 | 3 |
| Bridgebio Pharma, Inc. | $266.22 | 6 |
| E.R. Squibb & Sons, L.L.C. | $263.80 | 10 |
| Merck Sharp & Dohme LLC | $183.14 | 8 |
What the 2025 payments were for
- Food and Beverage$2,169 · 73 payments
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in McKinney
- 1063685865
- 1255396263
- 1316937394
- 1356334031
- 1538151170
- 1609814912
- 1619924222
- 1629215371
- 1891782512
- 1073567988
- 1295939262
- 1275215808
All 21 cardiologists in McKinney · All cardiologists in Texas