Don N. Chang, M.D.
NPI 1619101805ActiveIndividual· Internal Medicine, Nephrology· Roseville, CA
Internal Medicine, Nephrology (M.D.) in Roseville, California, trained at Oregon Health Sciences University School of Medicine (class of 2007). 537 Medicare patients in 2024, $124,629 paid; nearly all of their 1,453 Part D prescriptions were generic (95%). Alexion Pharmaceuticals, Inc. was the largest of 8 companies reporting payments in 2024, $252.42 in all, mostly food and beverage.
Overview
| NPI | 1619101805 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 4, 2009 |
| Last updated in NPPES | Aug 26, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A107520 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 537 |
|---|---|
| Services billed | 1,380 across 19 procedure codes |
| Paid by Medicare | $124,629 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,453 · 4,003 30-day fills |
|---|---|
| Patients | 315 |
| Total drug cost | $64,972 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Nephrology |
Medical group
- Regents of the Univ of CaSacramento, CA · 1,584 clinicians
Hospital affiliations
- Sutter Auburn Faith HospitalAuburn, CA
- Sutter Roseville Medical CenterRoseville, CA
- University of California Davis Medical CenterSacramento, CA
Industry payments (Open Payments)
- 2024$252.42 · 8 payments from 8 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $113.30 | 1 |
| Calliditas Therapeutics US Inc. | $25.17 | 1 |
| Novartis Pharmaceuticals Corporation | $23.33 | 1 |
| Fresenius USA Marketing, Inc. | $22.54 | 1 |
| Astrazeneca Pharmaceuticals LP | $22.38 | 1 |
What the 2024 payments were for
- Food and Beverage$252.42 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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