Enrique Espinosa-Melendez
Nephrology · National City, CANPI 1881651156
Payments from drug & device makers
Across 255 payments — averaging $22.83 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$1K
- AstraZeneca$824
- Lilly USA, LLC$593
- Novo Nordisk$519
- Mannkind Corporation$289
- Fresenius USA Marketing, Inc.$271
- plus $2K from 27 others
What the payments were for
- Travel & lodging$60%
- Food & beverage$5,798100%
- Education$180%
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 |
|---|---|---|
| Amgen(2 entities) | 60 | $1,141 |
| AstraZeneca(2 entities) | 24 | $824 |
| Lilly USA, LLC | 20 | $593 |
| Novo Nordisk | 36 | $519 |
| Mannkind Corporation | 13 | $289 |
| Fresenius USA Marketing, Inc. | 6 | $271 |
| Sanofi-aventis U.S. LLC | 11 | $234 |
| OPKO Pharmaceuticals, LLC | 11 | $210 |
| Amarin Pharma, Inc. | 8 | $200 |
| Boehringer Ingelheim | 4 | $184 |
| Vifor Pharma, Inc. | 7 | $158 |
| Mallinckrodt Hospital Products Inc. | 4 | $120 |
| Bayer | 5 | $118 |
| Medtronic | 3 | $117 |
| Johnson & Johnson | 6 | $115 |
| Novartis | 4 | $90 |
| Dexcom, Inc. | 4 | $85 |
| Merck | 3 | $72 |
| Otsuka America Pharmaceutical, Inc. | 3 | $70 |
| Xeris Pharmaceuticals, Inc. | 3 | $62 |
| Regeneron Healthcare Solutions, Inc. | 3 | $56 |
| Sunovion Pharmaceuticals Inc. | 3 | $49 |
| Akebia Therapeutics Inc | 4 | $43 |
| Mallinckrodt Enterprises LLC | 1 | $27 |
| Travere Therapeutics, Inc. | 1 | $25 |
| Ultragenyx Pharmaceutical Inc. | 1 | $23 |
| Daiichi Sankyo Inc. | 1 | $21 |
| Boston Scientific | 1 | $21 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $20 |
| Esperion Therapeutics, Inc. | 1 | $19 |
| Pfizer | 1 | $17 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $15 |
| Abbott | 1 | $14 |
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
$5,822 in reported general payments places this provider in the 70th percentile of 1,341 nephrology providers in California.
Other nephrology in National City
- Anjay RastogiLos Angeles$6.3M
- Aamir JamalSan Dimas$5.5M
- Mohamed El-ShahawyLos Angeles$4.4M
- Kalpesh PatelCalabasas$3.6M
- Jehad HaggiagiMission Hills$3.6M
- Malvin YanSouth Gate$3.3M
- Sohan DuaNorthridge$3.2M
- Richard LafayetteStanford$3M
- Anant DesaiGranada Hills$2.9M
- Glenn ChertowStanford$2.2M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.