Leo Tchong Jr., MD
NPI 1861655136ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Burlington, MA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Burlington, Massachusetts, trained at Tufts University School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $2,859,760 for 6,132 claims, against $81,781 paid for services in 2024. Amgen Inc. reported $120.73 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1861655136 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2008 |
| Last updated in NPPES | Apr 9, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 235786 | 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) | Enrolled Practitioner - Endocrinology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 652 |
|---|---|
| Services billed | 1,387 across 18 procedure codes |
| Paid by Medicare | $81,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,132 · 14,406 30-day fills |
|---|---|
| Patients | 1,080 |
| Total drug cost | $2,859,760 |
| Generic share | 45% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Lahey Clinic IncBurlington, MA · 1,381 clinicians
Hospital affiliations
- Anna Jaques HospitalNewburyport, MA
- Beth Israel Deaconess Medical CenterBoston, MA
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Northeast Hospital CorporationBeverly, MA
- Winchester HospitalWinchester, MA
Industry payments (Open Payments)
- 2025$120.73 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $120.73 | 1 |
What the 2025 payments were for
- Food and Beverage$120.73 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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