Alex L. Chang, MD
NPI 1578820015ActiveIndividual· Surgery· Houston, TX
Surgery (MD) in Houston, Texas, trained at Baylor College of Medicine (class of 2012). In 2024 Medicare paid $47,686 for 100 patients, and Part D covered 128 of their prescriptions, 80% of them generic. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $157.46 in all, mostly food and beverage.
Overview
| NPI | 1578820015 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 23, 2012 |
| Last updated in NPPES | Jan 7, 2026 |
| Certified by provider | Jan 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | W1398 | TX |
| Transplant Surgery | 204F00000X | 35.133496 | OH |
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 - General Surgery (OH); Practitioner - General Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 100 |
|---|---|
| Services billed | 204 across 34 procedure codes |
| Paid by Medicare | $47,686 |
Part D prescriptions in 2024
| Prescriptions (claims) | 128 · 153 30-day fills |
|---|---|
| Patients | 31 |
| Total drug cost | $9,343 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | General Surgery |
Medical groups
- Ut PhysiciansHouston, TX · 1,765 clinicians
- University of Cincinnati Physicians Company LLCCincinnati, OH · 1,506 clinicians
Hospital affiliations
- Memorial Hermann - Texas Medical CenterHouston, TX
- University of Cincinnati Medical Center, LLCCincinnati, OH
Industry payments (Open Payments)
- 2025$157.46 · 2 payments from 2 companies
- 2024$1,670 · 12 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $140.01 | 1 |
| La Jolla Pharmaceutical Company | $17.45 | 1 |
What the 2025 payments were for
- Food and Beverage$157.46 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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