Has Barbara Hamilton, MD received payments from drug or device companies?

Yes. Drug and device makers reported $33,689 in general payments to Barbara Hamilton, MD across 149 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 Barbara Hamilton, 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 Barbara Hamilton, 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.

Barbara Hamilton, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) · Ann Arbor, MINPI 1508123696

Payments from drug & device makers

What this record shows

The money is spread across several categories — speaking fees (56.9%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Medtronic accounts for 73.5% of it on its own, with 10 other manufacturers making up the rest. 2025 is the largest year on record at $21,830, more than ten times the $1,043 reported in 2019.

$33,689in general payments, 2019–2025

Across 149 payments — averaging $226.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Medtronic$25K
Edwards Lifesciences$3K
Intuitive Surgical$3K
Atricure, Inc.$1K
Bolton Medical Inc$789
W. L. Gore & Associates, Inc.$303
plus $743 from 5 others

What the payments were for

Speaking & faculty fees$19,17557%
Travel & lodging$4,72514%
Food & beverage$6,85420%
Education$2,9369%

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
Medtronic	87	$24,776
Edwards Lifesciences	25	$2,974
Intuitive Surgical	7	$2,655
Atricure, Inc.	8	$1,450
Bolton Medical Inc	9	$789
W. L. Gore & Associates, Inc.	2	$303
Silk Road Medical, Inc.	3	$274
Artivion, Inc.	4	$254
Medical Device Business Services, Inc.	2	$136
Lemaitre Vascular, Inc.	1	$54
Argon Medical Devices, Inc.	1	$25

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.

How this compares

$33,689 in reported general payments places this provider in the 85th percentile of 182 thoracic surgery (cardiothoracic vascular surgery) providers in Michigan.

See all thoracic surgery (cardiothoracic vascular surgery) providers in Michigan →

Medicare billing

Part B allowed, 2024

$84,451

Medicare patients

Services billed

126

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
Furosemide	11	$49

Paid to pharmacies, not to this prescriber.

Other thoracic surgery (cardiothoracic vascular surgery) in Ann Arbor

Steven BollingAnn Arbor$41.7M
Gorav AilawadiAnn Arbor$434K
Shinichi FukuharaAnn Arbor$236K
Bo YangAnn Arbor$180K
Matthew RomanoAnn Arbor$177K
Chigozirim EkekeAnn Arbor$92K
Himanshu PatelAnn Arbor$58K
Rishindra ReddyAnn Arbor$58K
Kenneth HasslerAnn Arbor$31K
Tessa WattAnn Arbor$22K

See the full list for Michigan →

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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