Lee-Shing Chang, M.D.
NPI 1033473624ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Boston, MA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Boston, Massachusetts, trained at Northwestern University Feinberg Medical School (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,016,458 for 1,594 claims, against $91,138 paid for services in 2024. Mannkind Corporation reported $42.50 in payments in 2025, mostly education.
Overview
| NPI | 1033473624 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 27, 2012 |
| Last updated in NPPES | Sep 24, 2020 |
| Certified by provider | Sep 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 275275 | MA |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 263128 | MA |
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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 4,777 across 16 procedure codes |
| Paid by Medicare | $91,138 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,594 · 3,830 30-day fills |
|---|---|
| Patients | 239 |
| Total drug cost | $1,016,458 |
| Generic share | 43% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Brigham and Womens Physicians Organization IncBoston, MA · 2,994 clinicians
Hospital affiliations
- Brigham and Women Faulkner HospitalJamaica Plain, MA
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- Newton-Wellesley HospitalNewton, MA
Industry payments (Open Payments)
- 2025$42.50 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mannkind Corporation | $42.50 | 1 |
What the 2025 payments were for
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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