Meijuan Yan, M.D.
NPI 1871708867ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Lancaster, PA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Lancaster General Medical Group, practicing in Lancaster, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $1,335,256 for 4,370 claims, against $84,331 paid for services in 2024. Lists Lancaster General Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1871708867 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 11, 2007 |
| Last updated in NPPES | Dec 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | MD426158 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 272 |
|---|---|
| Services billed | 2,792 across 18 procedure codes |
| Paid by Medicare | $84,331 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,370 · 9,944 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $1,335,256 |
| Generic share | 50% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Lancaster General Medical GroupOxford, PA · 586 clinicians
Hospital affiliations
- Lancaster General HospitalLancaster, PA
- Wellspan Ephrata Community HospitalEphrata, PA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other endocrinologists in Lancaster
- 1124245972
- 1902035041
- 1942240148
- 1295261923
- 1609829605
- 1821400052
- 1962744698
- 1033106950
- 1245312438
- 1366438590
- 1548384399
- 1891834164
All 17 endocrinologists in Lancaster · All endocrinologists in Pennsylvania