Christopher Han Sheng Chang, M.D., PH.D.
NPI 1417981796ActiveIndividual· Internal Medicine, Gastroenterology· Albuquerque, NM
Internal Medicine, Gastroenterology (M.D., PH.D.) in Albuquerque, New Mexico, licensed in NM and CA, with an NPI issued in July 2006. Enrolled in Medicare as practitioner - gastroenterology. Mirum Pharmaceuticals, Inc. was the largest of 16 companies reporting payments in 2025, $6,666 in all, mostly food and beverage.
Overview
| NPI | 1417981796 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Feb 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD2015-0819 | NM |
| Internal Medicine, Gastroenterology | 207RG0100X | A62290 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NM) |
|---|
Industry payments (Open Payments)
- 2025$6,666 · 67 payments from 16 companies
- 2024$15,376 · 64 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mirum Pharmaceuticals, Inc. | $3,513 | 4 |
| Abbvie Inc. | $744.91 | 25 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $486.48 | 10 |
| Ardelyx, Inc. | $438.94 | 4 |
| Mallinckrodt Hospital Products Inc. | $271.11 | 4 |
What the 2025 payments were for
- Food and Beverage$3,355 · 65 payments
- Consulting Fee$2,900 · 1 payment
- Travel and Lodging$410.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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