Lisen Liu, MD
NPI 1265445894ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Flushing, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Flushing, New York, licensed in NY, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $4,851,756 for 20,188 claims, against $32,450 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 9 companies reporting payments in 2025, $1,155 in all, mostly food and beverage.
Overview
| NPI | 1265445894 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Dec 16, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 239854 | NY |
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 - Endocrinology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 390 across 12 procedure codes |
| Paid by Medicare | $32,450 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20,188 · 27,806 30-day fills |
|---|---|
| Patients | 1,266 |
| Total drug cost | $4,851,756 |
| Generic share | 42% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$1,155 · 52 payments from 9 companies
- 2024$1,160 · 50 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $363.39 | 15 |
| Amgen Inc. | $198.30 | 10 |
| Abbvie Inc. | $157.90 | 7 |
| Amneal Pharmaceuticals LLC | $137.20 | 6 |
| Recordati_rare_diseases_inc. | $107.81 | 5 |
What the 2025 payments were for
- Food and Beverage$1,155 · 52 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Flushing
- 1013699479
- 1235477902
- 1003611815
- 1427801521
- 1235084435
- 1275620742
- 1477040186
- 1104387927
- 1144340225
- 1275573990
- 1780669887
- 1659804854
All Internal Medicine, Endocrinology, Diabetes & Metabolism providers in New York →