Martin Gavin
Nephrology · Elkton, MDNPI 1609862150
Payments from drug & device makers
Across 94 payments — averaging $19.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$329
- Amgen$199
- Calliditas Therapeutics US Inc.$182
- Vifor Pharma, Inc.$176
- Otsuka America Pharmaceutical, Inc.$176
- Fresenius USA Marketing, Inc.$168
- plus $633 from 12 others
What the payments were for
- Food & beverage$1,84699%
- Education$161%
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 |
|---|---|---|
| AstraZeneca | 16 | $329 |
| Amgen(2 entities) | 10 | $199 |
| Calliditas Therapeutics US Inc. | 2 | $182 |
| Vifor Pharma, Inc. | 11 | $176 |
| Otsuka America Pharmaceutical, Inc. | 10 | $176 |
| Fresenius USA Marketing, Inc. | 10 | $168 |
| Mallinckrodt Hospital Products Inc. | 5 | $106 |
| Bayer | 6 | $86 |
| Akebia Therapeutics Inc | 5 | $82 |
| Mallinckrodt Enterprises LLC | 3 | $62 |
| Shire North American Group Inc | 3 | $50 |
| GSK | 3 | $48 |
| AMAG Pharmaceuticals, Inc. | 3 | $42 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $40 |
| Nxstage Medical, Inc. | 1 | $39 |
| Daiichi Sankyo Inc. | 2 | $36 |
| Aurinia Pharma U.S., Inc. | 1 | $21 |
| VBI Vaccine (delaware) Inc. | 1 | $20 |
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.
- TARPEYO$102
How this compares
$1,862 in reported general payments places this provider in the 65th percentile of 285 nephrology providers in Maryland.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Losartan Potassium | 14 | $142 |
| Lisinopril | 16 | $96 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Elkton
- Helen Chang-DeguzmanElkton$5K
- Collette MehringElkton$5K
- Christopher SperatiBaltimore$1.5M
- Michelle EstrellaBaltimore$1.2M
- Mohamed AttaBaltimore$1.1M
- Chirag ParikhBaltimore$1M
- Mario BelledonnePotomac$715K
- Matthew WeirBaltimore$518K
- Kiran SamindlaFrederick$491K
- Saeed KronfliTakoma Park$463K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.