Ivy Chang, M.D.
NPI 1891182374ActiveIndividual· Emergency Medicine· Gardena, CA
Emergency Medicine (M.D.) with Mission Viejo Emergency Medical Associates, Inc. and 1 other group, practicing in Gardena, California. 194 Medicare patients in 2024, $30,235 paid; nearly all of their 143 Part D prescriptions were generic (92%). Lists Cedar-Sinai Marina del Rey Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1891182374 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 22, 2015 |
| Last updated in NPPES | Jul 16, 2020 |
| Certified by provider | Jul 16, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A160546 | CA |
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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 279 across 14 procedure codes |
| Paid by Medicare | $30,235 |
Part D prescriptions in 2024
| Prescriptions (claims) | 143 · 148 30-day fills |
|---|---|
| Patients | 74 |
| Total drug cost | $1,053 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Mission Viejo Emergency Medical Associates, Inc.Marina Del Rey, CA · 30 clinicians
- Redondo Emergency Physicians IncGardena, CA · 13 clinicians
Hospital affiliations
- Cedar-Sinai Marina del Rey HospitalMarina Del Rey, CA
- Memorial Hospital of GardenaGardena, 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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