Patrick Chan, MD
NPI 1851832059ActiveIndividual· Internal Medicine, Critical Care Medicine· Los Angeles, CA
Internal Medicine, Critical Care Medicine (MD) in Los Angeles, California, trained at University of Southern California Keck School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $103,026 for 18 claims, against $2,448 paid for services in 2024. Ani Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2025, $212.19 in all, mostly food and beverage.
Overview
| NPI | 1851832059 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 20, 2017 |
| Last updated in NPPES | Jan 17, 2024 |
| Certified by provider | Jan 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A157424 | CA |
| Internal Medicine | 207R00000X | A157424 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 22 across 8 procedure codes |
| Paid by Medicare | $2,448 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18 · 30 30-day fills |
|---|---|
| Total drug cost | $103,026 |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pulmonary Disease |
Medical groups
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
- Inpatient Specialists of California PCOakdale, CA · 385 clinicians
Hospital affiliations
- Adventist Health White MemorialLos Angeles, CA
- Keck Hospital of UscLos Angeles, CA
- Los Angeles General Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$212.19 · 5 payments from 3 companies
- 2024$75.17 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ani Pharmaceuticals, Inc. | $125.00 | 1 |
| Actelion Pharmaceuticals US, Inc. | $66.13 | 3 |
| Merck Sharp & Dohme LLC | $21.06 | 1 |
What the 2025 payments were for
- Food and Beverage$212.19 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 critical care physicians in Los Angeles · All critical care physicians in California