Has Thomas Callahan, MD received payments from drug or device companies?

Yes. Drug and device makers reported $119,223 in general payments to Thomas Callahan, MD across 214 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 Thomas Callahan, 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 Thomas Callahan, 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.

Thomas Callahan, MD

Clinical Cardiac Electrophysiology · Cleveland, OHNPI 1023004520

Payments from drug & device makers

What this record shows

The money is spread across several categories — speaking fees (52.0%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. 9 manufacturers reported payments, led by Philips North America LLC at 52.3% of the total. 2025 is the largest year on record at $68,131, more than ten times the $5,499 reported in 2019. Among clinical cardiac electrophysiology clinicians in OH with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$119,223in general payments, 2019–2025

Across 214 payments — averaging $557.12 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Philips North America LLC$62K
Medtronic$27K
Boston Scientific$13K
Abbott$10K
Biotronik Inc.$6K
Stereotaxis Inc$531
plus $572 from 3 others

$685,354in research payments, 2019–2025

Across 81 payments — averaging $8461.16 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

Medtronic$500K
Boston Scientific$178K
Masimo Corporation$7K

What the payments were for

Consulting fees$32,80028%
Speaking & faculty fees$62,05052%
Travel & lodging$14,79512%
Food & beverage$9,5788%

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
Philips North America LLC	43	$62,379
Medtronic	65	$27,484
Boston Scientific	46	$12,766
Abbott	37	$9,545
Biotronik Inc.	15	$5,946
Stereotaxis Inc	3	$531
Masimo Corporation	2	$300
Biosense Webster, Inc.	2	$253
Otsuka America Pharmaceutical, Inc.	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.

(9520) IGT Devices Undivided$59,594
Micra$5,837
MERLIN@HOME$5,206
AVEIR$1,943
(9124) LM Undivided$1,270
GALLANT$998
GENERAL - THERAPIES$827
Niobe$455
IGT Devices Und$287
AFFERA MAPPING SYSTEM$268
Carto 3$253
Fleet Management$234
EVERA MRI XT DR SURESCAN$209
EnSite Precision Cardiac Mapping System$202
HM 38-02 ASSEMBLY$150
NA$150
ARCTIC FRONT ADVANCE$146
ENSITE$141
WATCHMAN FLX$140
COBALT DR MRI SURESCAN$132

How this compares

$119,223 in reported general payments places this provider in the 90th percentile of 159 clinical cardiac electrophysiology providers in Ohio.

See all clinical cardiac electrophysiology providers in Ohio →

Medicare billing

Part B allowed, 2024

$156,589

Medicare patients

723

Services billed

1,978

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
EliquisApixaban	417	$470,144
XareltoRivaroxaban	36	$48,242
Dofetilide	111	$20,844
Flecainide Acetate	96	$4,605
Metoprolol Succinate	149	$2,919
SotalolSotalol Hcl	58	$1,890
Mexiletine Hcl	19	$1,285
Amiodarone Hcl	44	$917
Diltiazem 24hr Er (Cd)Diltiazem Hcl	20	$549
Metoprolol Tartrate	74	$452
Diltiazem 24hr Er (Xr)Diltiazem Hcl	16	$398
Carvedilol	22	$356
Losartan Potassium	17	$305
Potassium Chloride	17	$301
Dilt-XrDiltiazem Hcl	15	$209

Paid to pharmacies, not to this prescriber.

Other clinical cardiac electrophysiology in Cleveland

Walid SalibaCleveland$511K
Bruce WilkoffCleveland$213K
Judith MackallCleveland$129K
Albert WaldoCleveland$127K
Ayman HusseinCleveland$98K
Muhammad ButtCleveland$82K
Arshneel KocharCleveland$49K
Shady NakhlaCleveland$47K
Mauricio ArrudaCleveland$38K
Maki OnoCleveland$37K

See the full list for Ohio →

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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