Mark Barats, MD
Nephrology · West Hollywood, CANPI 1720134695
Payments from drug & device makers
Across 1,529 payments — averaging $20.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$10K
- AbbVie$3K
- Novartis$1K
- AstraZeneca$1K
- Amarin Pharma, Inc.$1K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$1K
- plus $13K from 54 others
What the payments were for
- Consulting fees$970%
- Speaking & faculty fees$4,20013%
- Travel & lodging$2971%
- Food & beverage$26,68484%
- Education$3191%
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.
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.
- KRYSTEXXA$4,721
How this compares
$31,596 in reported general payments places this provider in the 85th percentile of 1,341 nephrology providers in California.
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 |
|---|---|---|
| Diclofenac Sodium | 1,711 | $1,207,177 |
| Omeprazole-Sodium BicarbonateOmeprazole/Sodium Bicarbonate | 1,023 | $990,066 |
| CreonLipase/Protease/Amylase | 714 | $688,099 |
| KrystexxaPegloticase | 21 | $628,679 |
| Repatha SureclickEvolocumab | 1,003 | $567,512 |
| MounjaroTirzepatide | 498 | $528,417 |
| OzempicSemaglutide | 454 | $432,952 |
| Metformin Er GastricMetformin Hcl | 289 | $399,773 |
| LinzessLinaclotide | 730 | $394,321 |
| OctagamImmun Globg(Igg)/Malt/Iga Ov50 | 13 | $365,979 |
| IbsrelaTenapanor Hcl | 180 | $320,239 |
| Chlordiazepoxide-ClidiniumChlordiazepoxide/Clidinium Br | 175 | $278,999 |
| Dihydroergotamine Mesylate | 163 | $276,019 |
| Diclofenac Epolamine | 466 | $254,996 |
| VoqueznaVonoprazan Fumarate | 367 | $239,186 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieCreon, Linzess | $3,486 | $1,082,4201,444 claims |
| AmgenKrystexxa, Evenity (2 Syringes), Rayos, Prolia | $10,086 | $1,030,453198 claims |
| PfizerOctagam, Eliquis, Nurtec Odt | $731 | $639,789376 claims |
| Lilly USA, LLCMounjaro | $663 | $528,417498 claims |
| Novo NordiskOzempic | $667 | $432,952454 claims |
| Ardelyx, Inc.Ibsrela | $846 | $320,239180 claims |
| NovartisLeqvio, Entresto | $1,438 | $296,275217 claims |
| Phathom Pharmaceuticals, Inc.Voquezna | $289 | $239,186367 claims |
| MerckJanumet, Januvia | $207 | $214,195363 claims |
| Sumitomo Pharma America, Inc.Gemtesa | $304 | $169,302340 claims |
| Boehringer IngelheimJardiance | $434 | $157,518256 claims |
| Astellas Pharma US IncMyrbetriq | $337 | $119,418264 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 85th percentile of 1,341 nephrology providers in California.
Other nephrology in West Hollywood
- Stanley JordanWest Hollywood$2M
- 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
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.