Han-Chih Chang, M.D.
NPI 1790776755ActiveIndividual· Radiology, Radiation Oncology· Nashville, TN
Radiology, Radiation Oncology (M.D.) in Nashville, Tennessee, trained at University of Michigan Medical School (class of 1995). 1,218 Medicare patients in 2024, $2,966,465 paid; nearly all of their 552 Part D prescriptions were generic (95%). Teleflex LLC was the largest of 4 companies reporting payments in 2025, $30,235 in all, mostly speaking and faculty fees.
Overview
| NPI | 1790776755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 31, 2005 |
| Last updated in NPPES | Jun 26, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 57231 | TN |
| Radiology, Radiation Oncology | 2085R0001X | 036102262 | IL |
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 - Radiation Oncology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,218 |
|---|---|
| Services billed | 14,167 across 87 procedure codes |
| Paid by Medicare | $2,966,465 |
Part D prescriptions in 2024
| Prescriptions (claims) | 552 · 807 30-day fills |
|---|---|
| Patients | 194 |
| Total drug cost | $10,285 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- Oklahoma Proton Center LLCOklahoma City, OK · 15 clinicians
Hospital affiliations
- Grady Memorial HospitalChickasha, OK
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Health Enid HospitalEnid, OK
- Norman RegionalNorman, OK
- Oklahoma Heart Hospital, LLCOklahoma City, OK
Industry payments (Open Payments)
- 2025$30,235 · 27 payments from 4 companies
- 2024$15,937 · 31 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teleflex LLC | $15,284 | 14 |
| Bioprotect Medical, Inc. | $14,629 | 10 |
| Icotec Medical Inc. | $178.62 | 2 |
| Boston Scientific Corporation | $142.90 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$18,350 · 6 payments
- Consulting Fee$8,400 · 2 payments
- Travel and Lodging$1,932 · 5 payments
- Food and Beverage$1,553 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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