Dennis Chang, D.O.
NPI 1912360918ActiveIndividual· Internal Medicine· Glendale, CA
Internal Medicine (D.O.) with Cedar Springs Hospitalist Medical Group Inc, practicing in Glendale, California. In 2024 Medicare paid $81,954 for 306 patients, and Part D covered 248 of their prescriptions, 85% of them generic. Zoll Services LLC (A/K/A Zoll Lifecor Corp) reported $61.70 in payments in 2025, mostly food and beverage. Lists Glendale Mem Hospital & Hlth Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1912360918 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2016 |
| Last updated in NPPES | Mar 4, 2022 |
| Certified by provider | Mar 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 17165 | CA |
| Internal Medicine | 207R00000X | 20A17165 | CA |
| Hospitalist | 208M00000X | 20A17165 | 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 | 306 |
|---|---|
| Services billed | 869 across 7 procedure codes |
| Paid by Medicare | $81,954 |
Part D prescriptions in 2024
| Prescriptions (claims) | 248 · 262 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $20,896 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Cedar Springs Hospitalist Medical Group IncGlendale, CA · 28 clinicians
Hospital affiliations
- Glendale Mem Hospital & Hlth CenterGlendale, CA
- Keck Hospital of UscLos Angeles, CA
Industry payments (Open Payments)
- 2025$61.70 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $61.70 | 3 |
What the 2025 payments were for
- Food and Beverage$61.70 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 169 internal medicine physicians in Glendale · All internal medicine physicians in California