Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MARK C LEE

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1558322479
CMS profile
1147988
Location
WHITTIER, CA

General Payments · PY2018–2024

$3,172.14

  • Reported across 179 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$696.86

31 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $696.86 31

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Ardelyx, Inc. $200.43 8
Acerta Pharma LLC $169.28 5
Fresenius USA Marketing, Inc. $162.02 12
Amgen Inc. $123.92 4
Lilly USA, LLC $21.76 1
OPKO Pharmaceuticals, LLC $19.45 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $48.61 3
PY2019 $417.69 23
PY2020 $444.88 35
PY2021 $436.94 36
PY2022 $536.88 29
PY2023 $590.28 22
PY2024 $696.86 31

Payment records · PY2024 (31)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amgen Inc. $30.73 04/12/2024 Food and Beverage Undisputed 01/23/2026 1117308405 CMS
Amgen Inc. $36.72 05/07/2024 Food and Beverage Undisputed 01/23/2026 1117308407 CMS
Amgen Inc. $33.49 06/17/2024 Food and Beverage Undisputed 01/23/2026 1111632328 CMS
Amgen Inc. $22.98 10/04/2024 Food and Beverage Undisputed 01/23/2026 1111632330 CMS
Ardelyx, Inc. $31.24 05/04/2024 Food and Beverage Undisputed 01/23/2026 1146691752 CMS
Ardelyx, Inc. $19.11 06/21/2024 Food and Beverage Undisputed 01/23/2026 1146691754 CMS
Ardelyx, Inc. $18.17 07/20/2024 Food and Beverage Undisputed 01/23/2026 1146691756 CMS
Ardelyx, Inc. $34.36 08/17/2024 Food and Beverage Undisputed 01/23/2026 1146691758 CMS
Ardelyx, Inc. $17.81 09/13/2024 Food and Beverage Undisputed 01/23/2026 1146691760 CMS
Ardelyx, Inc. $19.74 10/11/2024 Food and Beverage Undisputed 01/23/2026 1146691762 CMS
Ardelyx, Inc. $26.44 11/02/2024 Food and Beverage Undisputed 01/23/2026 1146691764 CMS
Ardelyx, Inc. $33.56 12/20/2024 Food and Beverage Undisputed 01/23/2026 1146691766 CMS
AstraZeneca Pharmaceuticals LP $110.55 01/19/2024 Food and Beverage Undisputed 01/23/2026 1104674753 CMS
AstraZeneca Pharmaceuticals LP $14.10 03/01/2024 Food and Beverage Undisputed 01/23/2026 1104670601 CMS
AstraZeneca Pharmaceuticals LP $13.45 10/04/2024 Food and Beverage Undisputed 01/23/2026 1104326154 CMS
AstraZeneca Pharmaceuticals LP $16.38 11/01/2024 Food and Beverage Undisputed 01/23/2026 1104296064 CMS
AstraZeneca Pharmaceuticals LP $14.80 11/16/2024 Food and Beverage Undisputed 01/23/2026 1104724813 CMS
Fresenius USA Marketing, Inc. $21.30 02/05/2024 Food and Beverage Undisputed 01/23/2026 1154203818 CMS
Fresenius USA Marketing, Inc. $19.11 02/23/2024 Food and Beverage Undisputed 01/23/2026 1154203812 CMS
Fresenius USA Marketing, Inc. $10.53 03/07/2024 Food and Beverage Undisputed 01/23/2026 1154203806 CMS
Fresenius USA Marketing, Inc. $17.85 03/12/2024 Food and Beverage Undisputed 01/23/2026 1154203808 CMS
Fresenius USA Marketing, Inc. $0.55 03/12/2024 Food and Beverage Undisputed 01/23/2026 1154203822 CMS
Fresenius USA Marketing, Inc. $3.23 03/12/2024 Food and Beverage Undisputed 01/23/2026 1154203826 CMS
Fresenius USA Marketing, Inc. $19.36 03/13/2024 Food and Beverage Undisputed 01/23/2026 1154203816 CMS
Fresenius USA Marketing, Inc. $22.88 04/25/2024 Food and Beverage Undisputed 01/23/2026 1154203820 CMS
Fresenius USA Marketing, Inc. $0.57 04/25/2024 Food and Beverage Undisputed 01/23/2026 1154203824 CMS
Fresenius USA Marketing, Inc. $18.78 04/26/2024 Food and Beverage Undisputed 01/23/2026 1154203810 CMS
Fresenius USA Marketing, Inc. $19.29 08/07/2024 Food and Beverage Undisputed 01/23/2026 1154203814 CMS
Fresenius USA Marketing, Inc. $8.57 08/16/2024 Food and Beverage Undisputed 01/23/2026 1154203828 CMS
Lilly USA, LLC $21.76 10/07/2024 Food and Beverage Undisputed 01/23/2026 1135115425 CMS
OPKO Pharmaceuticals, LLC $19.45 07/12/2024 Food and Beverage Undisputed 01/23/2026 1112846606 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.