Jonathan James Wanglun Chan, M.D.
NPI 1982016929ActiveIndividual· Internal Medicine, Pulmonary Disease· Thousand Oaks, CA
Internal Medicine, Pulmonary Disease (M.D.) in Thousand Oaks, California, trained at Eastern Virginia Medical School (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $1,840,268 for 1,871 claims, against $37,658 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $167.08 in all, mostly food and beverage.
Overview
| NPI | 1982016929 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 26, 2014 |
| Last updated in NPPES | Aug 27, 2024 |
| Certified by provider | Aug 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | C194944 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | C194944 | 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 240 |
|---|---|
| Services billed | 495 across 30 procedure codes |
| Paid by Medicare | $37,658 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,871 · 3,605 30-day fills |
|---|---|
| Patients | 403 |
| Total drug cost | $1,840,268 |
Education and affiliations
| Medical school | Eastern Virginia Medical School |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
- UCLA West Valley Medical CenterWest Hills, CA
Industry payments (Open Payments)
- 2025$167.08 · 3 payments from 3 companies
- 2024$94.95 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $104.05 | 1 |
| Inogen, Inc. | $39.83 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $23.20 | 1 |
What the 2025 payments were for
- Food and Beverage$167.08 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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