Stephen Williams
Interventional Cardiology · Frederick, MDNPI 1528131687
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $11,500 of the $17,617 with a category attached, or 65.3%. 16 manufacturers reported payments, led by Boston Scientific at 55.6% of the total. Reporting peaked in 2019 at $5,169 and has fallen 94.5% since, to $282 in 2025.
Across 79 payments — averaging $223.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$10K
- Medtronic$7K
- Abbott$544
- Amgen$115
- Johnson & Johnson$110
- AstraZeneca$91
- plus $321 from 10 others
What the payments were for
- Consulting fees$11,50065%
- Speaking & faculty fees$6754%
- Travel & lodging$2,19112%
- Food & beverage$3,25118%
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 |
|---|---|---|
| Boston Scientific | 19 | $9,796 |
| Medtronic(2 entities) | 17 | $6,640 |
| Abbott | 12 | $544 |
| Amgen | 5 | $115 |
| Johnson & Johnson | 6 | $110 |
| AstraZeneca | 6 | $91 |
| W. L. Gore & Associates, Inc. | 3 | $71 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 3 | $56 |
| Stryker | 1 | $31 |
| Philips North America LLC | 1 | $29 |
| Siemens Medical Solutions USA, Inc. | 1 | $26 |
| Teleflex LLC | 1 | $25 |
| Inari Medical, Inc. | 1 | $25 |
| Novartis | 1 | $21 |
| Cardiovascular Systems Inc. | 1 | $19 |
| Tactile Systems Technology 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.
- GENERAL VASCULAR INTERVENTION$6,745
- GENERAL - THERAPIES$2,875
- SYMPLICITY G3$166
- Telescope$107
- OPTIS$105
- Optis Coronary Imaging System$104
How this compares
$17,617 in reported general payments places this provider in the 70th percentile of 71 interventional cardiology providers in Maryland.
Medicare billing
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 |
|---|---|---|
| Atorvastatin Calcium | 21 | $333 |
| Metoprolol Succinate | 15 | $126 |
Paid to pharmacies, not to this prescriber.
Other interventional cardiology in Frederick
- Vinay SatwahGreenbelt$679K
- Aloke FinnBaltimore$575K
- Michael ChenRockville$241K
- John WangBaltimore$138K
- Steven HearneSalisbury$100K
- Amir NajafiBel Air$82K
- Diljon ChahalBaltimore$78K
- Joseph CinderellaSalisbury$72K
- Ali TabrizchiBel Air$66K
- Homam IbrahimSilver Spring$49K
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.