Debbie-Ann L. Tan, M.D.
NPI 1265498851ActiveIndividual· Internal Medicine· Fall River, MA
Internal Medicine (M.D.) in Fall River, Massachusetts, licensed in MA, with an NPI issued in April 2006. Their prescriptions cost Medicare Part D more than their services did: $180,253 for 2,159 claims, against $37,649 paid for services in 2024.
Overview
| NPI | 1265498851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2006 |
| Last updated in NPPES | Aug 31, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 81849 | MA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 1,918 across 65 procedure codes |
| Paid by Medicare | $37,649 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,159 · 5,666 30-day fills |
|---|---|
| Patients | 284 |
| Total drug cost | $180,253 |
| Generic share | 91% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 77 internal medicine physicians in Fall River · All internal medicine physicians in Massachusetts