Ronald Chang, M.D.
NPI 1861810863ActiveIndividual· Hospitalist· Pomona, CA
Hospitalist (M.D.) with Hospitalist Corporation of Inland Empire, practicing in Pomona, California. In 2024 Medicare paid $71,036 for 286 patients, and Part D covered 328 of their prescriptions, 81% of them generic. Kestra Medical Technology Services, Inc. was the largest of 4 companies reporting payments in 2025, $413.05 in all, mostly food and beverage. Lists Pomona Valley Hospital Medical Center as a hospital affiliation.
Overview
| NPI | 1861810863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 7, 2014 |
| Last updated in NPPES | Oct 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A141360 | CA |
| Internal Medicine | 207R00000X | A141360 | 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 | 286 |
|---|---|
| Services billed | 668 across 4 procedure codes |
| Paid by Medicare | $71,036 |
Part D prescriptions in 2024
| Prescriptions (claims) | 328 · 402 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $31,212 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Hospitalist Corporation of Inland EmpirePomona, CA · 26 clinicians
Hospital affiliation
- Pomona Valley Hospital Medical CenterPomona, CA
Industry payments (Open Payments)
- 2025$413.05 · 28 payments from 4 companies
- 2024$41.80 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kestra Medical Technology Services, Inc. | $188.21 | 25 |
| Sequel Med Tech, LLC | $120.71 | 1 |
| Lilly USA, LLC | $71.53 | 1 |
| Smith+nephew, Inc. | $32.60 | 1 |
What the 2025 payments were for
- Food and Beverage$413.05 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 hospitalists in Pomona · All hospitalists in California