Grace Chang
NPI 1508144783ActiveIndividual· Internal Medicine, Hematology & Oncology· Santa Monica, CA
Internal Medicine, Hematology & Oncology in Santa Monica, California, trained at New York Medical College (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $1,029,818 for 616 claims, against $625,510 paid for services in 2024. Rigel Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2025, $427.33 in all, mostly food and beverage.
Overview
| NPI | 1508144783 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 22, 2011 |
| Last updated in NPPES | May 27, 2025 |
| Certified by provider | Jan 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A123034 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 304 |
|---|---|
| Services billed | 25,975 across 67 procedure codes |
| Paid by Medicare | $625,510 |
Part D prescriptions in 2024
| Prescriptions (claims) | 616 · 900 30-day fills |
|---|---|
| Patients | 225 |
| Total drug cost | $1,029,818 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - West laLos Angeles, CA
Industry payments (Open Payments)
- 2025$427.33 · 3 payments from 3 companies
- 2024$435.04 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rigel Pharmaceuticals, Inc. | $168.09 | 1 |
| Ipsen Biopharmaceuticals, Inc | $133.32 | 1 |
| Incyte Corporation | $125.92 | 1 |
What the 2025 payments were for
- Food and Beverage$427.33 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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