John Shin, MD
Clinical Cardiac Electrophysiology · Upper Marlboro, MDNPI 1295911493
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 61 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Biosense Webster, Inc. accounts for 76.5% of it on its own, with 4 other manufacturers making up the rest. 2025 is the largest year on record at $1,044, more than ten times the $65 reported in 2023. That places this record below the midpoint for clinical cardiac electrophysiology clinicians in MD, where the typical reported total is $15,262.
Across 61 payments — averaging $30.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biosense Webster, Inc.$1K
- Medtronic$238
- Alphatec Spine, Inc$152
- Cardiva Medical, Inc.$47
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$2
What the payments were for
- Food & beverage$1,870100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Biosense Webster, Inc. | 45 | $1,430 |
| Medtronic | 12 | $238 |
| Alphatec Spine, Inc | 1 | $152 |
| Cardiva Medical, Inc. | 2 | $47 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $2 |
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.
- LIF$152
How this compares
$1,870 in reported general payments places this provider in the 15th percentile of 63 clinical cardiac electrophysiology providers in Maryland.
See all clinical cardiac electrophysiology 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 |
|---|---|---|
| EliquisApixaban | 246 | $342,763 |
| XareltoRivaroxaban | 78 | $96,264 |
| MultaqDronedarone Hcl | 20 | $46,052 |
| EntrestoSacubitril/Valsartan | 16 | $26,834 |
| Dofetilide | 12 | $4,774 |
| Metoprolol Succinate | 276 | $4,577 |
| Flecainide Acetate | 49 | $1,826 |
| Rosuvastatin Calcium | 55 | $1,138 |
| Atorvastatin Calcium | 83 | $1,065 |
| Ezetimibe | 14 | $943 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 16 | $853 |
| Amlodipine Besylate | 38 | $792 |
| Digoxin | 17 | $552 |
| Amiodarone Hcl | 35 | $537 |
| SotalolSotalol Hcl | 19 | $505 |
Paid to pharmacies, not to this prescriber.
Other clinical cardiac electrophysiology in Upper Marlboro
- Sean BeinartRockville$315K
- Charles LoveBaltimore$238K
- Hugh CalkinsBaltimore$202K
- Paresh ShahBaltimore$97K
- Helen BaroldRockville$83K
- Jonathan ChrispinBaltimore$77K
- Sung LeeTakoma Park$68K
- Stephen ShorofskyBaltimore$63K
- Nilofar IslamTowson$61K
- Arooge TowheedLargo$60K
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.