Alan Tan, M.D.
NPI 1609071349ActiveIndividual· Internal Medicine, Hematology & Oncology· Nashville, TN
Internal Medicine, Hematology & Oncology (M.D.) with Vanderbilt Health Clinicians, LLC, practicing in Nashville, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $1,335,028 for 296 claims, against $27,103 paid for services in 2024. Aveo Pharmaceuticals, Inc. was the largest of 13 companies reporting payments in 2025, $125,610 in all, mostly speaking and faculty fees. Lists Vanderbilt University Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1609071349 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2007 |
| Last updated in NPPES | Apr 22, 2024 |
| Certified by provider | Apr 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 70201 | TN |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 01071270A | IN |
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 - Medical Oncology (IL); Practitioner - Hematology/Oncology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 109 |
|---|---|
| Services billed | 290 across 12 procedure codes |
| Paid by Medicare | $27,103 |
Part D prescriptions in 2024
| Prescriptions (claims) | 296 · 339 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $1,335,028 |
| Generic share | 44% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Vanderbilt Health Clinicians, LLCNashville, TN · 129 clinicians
Hospital affiliations
- Vanderbilt University Medical CenterNashville, TN
- Vanderbilt Wilson County HospitalLebanon, TN
Industry payments (Open Payments)
- 2025$125,610 · 84 payments from 13 companies
- 2024$175,239 · 133 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aveo Pharmaceuticals, Inc. | $42,477 | 24 |
| E.R. Squibb & Sons, L.L.C. | $35,889 | 12 |
| Exelixis Inc. | $22,807 | 25 |
| Pfizer Inc. | $9,133 | 4 |
| Merck Sharp & Dohme LLC | $4,478 | 3 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$74,615 · 21 payments
- Consulting Fee$23,160 · 13 payments
- Compensation for serving as faculty or as a speaker for a medical education program$20,625 · 10 payments
- Travel and Lodging$5,180 · 20 payments
- Food and Beverage$1,987 · 19 payments
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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