Daniel H. Chang, M.S., M.D.
NPI 1568993665ActiveIndividual· Internal Medicine· Colton, CA
Internal Medicine (M.S., M.D.) with Quantum Healthcare Medical Associates Inc, practicing in Colton, California. In 2024 Medicare paid $38,434 for 157 patients, and Part D covered 266 of their prescriptions, 80% of them generic. Lists Arrowhead Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1568993665 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.S., M.D. |
| Sole proprietor | No |
| NPI issued | Mar 21, 2017 |
| Last updated in NPPES | Dec 14, 2019 |
| Certified by provider | Dec 14, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A166287 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 157 |
|---|---|
| Services billed | 500 across 8 procedure codes |
| Paid by Medicare | $38,434 |
Part D prescriptions in 2024
| Prescriptions (claims) | 266 · 286 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $42,277 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Quantum Healthcare Medical Associates IncHilo, HI · 109 clinicians
Hospital affiliation
- Arrowhead Regional Medical CenterColton, CA
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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