Young Chang, MD
NPI 1639218290ActiveIndividual· Internal Medicine· Tamuning, GU
Internal Medicine (MD) in Tamuning, Guam, licensed in GU, with an NPI issued in February 2007. 401 Medicare patients in 2024, $131,287 paid; nearly all of their 2,666 Part D prescriptions were generic (91%).
Overview
| NPI | 1639218290 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 6, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | M1121 | GU |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (GU) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 401 |
|---|---|
| Services billed | 2,173 across 17 procedure codes |
| Paid by Medicare | $131,287 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,666 · 3,046 30-day fills |
|---|---|
| Patients | 89 |
| Total drug cost | $87,750 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
Other facilities
- Fhp Home HealthHome health agency · Tamuning, GU
- Guam Visiting NursesHome health agency · Tamuning, GU
- Health Services of the Pacific - Home CareHome health agency · Barrigada, GU
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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