Has Han-Chih Chang, MD received payments from drug or device companies?

Yes. Drug and device makers reported $66,043 in general payments to Han-Chih Chang, MD across 108 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Han-Chih Chang, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Han-Chih Chang, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Han-Chih Chang, MD

Radiation Oncology · Nashville, TNNPI 1790776755

Payments from drug & device makers

What this record shows

The money is spread across several categories — speaking fees (48.2%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Teleflex LLC at 46.0% of the total. 2025 is the largest year on record at $30,235, more than ten times the $222 reported in 2019. Among radiation oncology clinicians in TN with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$66,043in general payments, 2019–2025

Across 108 payments — averaging $611.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Teleflex LLC$30K
Palette Life Sciences, Inc.$18K
Bioprotect Medical, Inc.$15K
Ion Beam Applications S.A.$1K
Boston Scientific$1K
Icotec Medical Inc.$333
plus $680 from 7 others

What the payments were for

Consulting fees$23,70036%
Speaking & faculty fees$31,85048%
Travel & lodging$3,6165%
Food & beverage$6,80910%
Education$690%

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Teleflex LLC	33	$30,389
Palette Life Sciences, Inc.	14	$17,502
Bioprotect Medical, Inc.	15	$15,081
Ion Beam Applications S.A.	2	$1,030
Boston Scientific	27	$1,029
Icotec Medical Inc.	4	$333
Visionrt, Inc.	2	$226
Bard Peripheral Vascular, Inc.	2	$153
Sumitomo Pharma America, Inc.	4	$115
Profound Medical Corp.	1	$96
Novocure Inc.	2	$54
Novartis	1	$19
Incyte Corporation	1	$18

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

BIOPROTECT BALLOON IMPLANT SYSTEM$14,800
Barrigel$14,538
UroLift$710
SpaceOAR VUE System - 10mL$551
VADER PEDICLE SYSTEM 6.0, SCREW, Carbon/PEEK, POLYAX., FEN., O 5.5 X 45 MM$153
VADER PEDICLE SYSTEM, ROD, Carbon/PEEK, CURVED, 6.0 R450 X 200 MM$153
KONG-TL VBR E, EXPANDABLE BODY, L, 19 MM X 27 - 37 MM$153
KONG-TL VBR, END PLATE, ROUND, L AND SCREW, 12 X 43 MM$153
KONG-TL VBR, END PLATE, RECTANGULAR, M AND SCREW, 12 X 33 MM$153
Model 200 TheraSeed Palladium-103 in ReadyLink$124
Vader Pedicle System$107

How this compares

$66,043 in reported general payments places this provider in the 95th percentile of 115 radiation oncology providers in Tennessee.

See all radiation oncology providers in Tennessee →

Medicare billing

Part B allowed, 2024

$3,748,533

Medicare patients

1,218

Services billed

14,167

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Tolterodine Tartrate ErTolterodine Tartrate	48	$3,300
Tamsulosin Hcl	262	$3,145
Ciprofloxacin Hcl	18	$440
Alfuzosin Hcl ErAlfuzosin Hcl	25	$357
Megestrol Acetate	11	$356
Oxybutynin Chloride ErOxybutynin Chloride	17	$256
SsdSilver Sulfadiazine	12	$253
Gabapentin	34	$227
Venlafaxine Hcl ErVenlafaxine Hcl	26	$212
Silver Sulfadiazine	12	$119
Methylprednisolone	15	$117

Paid to pharmacies, not to this prescriber.

Other radiation oncology in Nashville

Karen WinkfieldNashville$53K
James GrayNashville$46K
John PhillipsNashville$23K
Casey LipscombNashville$23K
Andrew KennedyNashville$18K
Anthony CmelakNashville$16K
Evan OsmundsonNashville$8K
Joshua MondscheinNashville$6K
Diandra Ayala-PeacockNashville$4K
Ryan JonesNashville$3K

See the full list for Tennessee →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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