Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

MARK C LEE

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1558322479
CMS profile
1147988
Location
WHITTIER, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2020 · Entire year

$444.88

35 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $444.88 35

By paying entity

PY2020 · entire year · sorted by reported total

Paying entityAmountRecords
Fresenius USA Marketing, Inc. $220.81 25
Amgen Inc. $201.22 9
Relypsa, Inc. $22.85 1

Payment records · PY2020

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

35 matching records · $444.88 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 35 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–35 of 35.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Fresenius USA Marketing, Inc. $17.8512/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744674535 CMS
Fresenius USA Marketing, Inc. $19.1012/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744674195 CMS
Amgen Inc. $25.2612/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416027 CMS
Fresenius USA Marketing, Inc. $0.7611/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677539 CMS
Fresenius USA Marketing, Inc. $16.1611/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677543 CMS
Fresenius USA Marketing, Inc. $3.6511/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677545 CMS
Fresenius USA Marketing, Inc. $15.9711/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677555 CMS
Fresenius USA Marketing, Inc. $17.5411/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677733 CMS
Fresenius USA Marketing, Inc. $8.8111/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677737 CMS
Fresenius USA Marketing, Inc. $0.7611/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677739 CMS
Fresenius USA Marketing, Inc. $6.2911/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677743 CMS
Amgen Inc. $19.7211/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416025 CMS
Fresenius USA Marketing, Inc. $4.5411/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677393 CMS
Fresenius USA Marketing, Inc. $15.9511/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677397 CMS
Amgen Inc. $23.5211/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416023 CMS
Relypsa, Inc. $22.8511/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026742176491 CMS
Amgen Inc. $19.6110/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416021 CMS
Fresenius USA Marketing, Inc. $14.3710/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744676999 CMS
Fresenius USA Marketing, Inc. $2.7410/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744677003 CMS
Fresenius USA Marketing, Inc. $2.0210/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744676961 CMS
Fresenius USA Marketing, Inc. $6.0510/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744676965 CMS
Amgen Inc. $23.0310/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416019 CMS
Amgen Inc. $24.1109/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416017 CMS
Amgen Inc. $21.0409/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416015 CMS
Fresenius USA Marketing, Inc. $15.2109/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744675137 CMS
Fresenius USA Marketing, Inc. $2.7409/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744675143 CMS
Amgen Inc. $20.5208/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416013 CMS
Fresenius USA Marketing, Inc. $15.5203/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684037 CMS
Fresenius USA Marketing, Inc. $1.4603/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684041 CMS
Fresenius USA Marketing, Inc. $16.8103/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684035 CMS
Amgen Inc. $24.4103/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741416011 CMS
Fresenius USA Marketing, Inc. $1.5002/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684027 CMS
Fresenius USA Marketing, Inc. $6.6702/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684031 CMS
Fresenius USA Marketing, Inc. $6.4101/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684021 CMS
Fresenius USA Marketing, Inc. $1.9301/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744684023 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $417.69 23
PY2020 $444.88 35
PY2021 $436.94 36
PY2022 $536.88 29
PY2023 $590.28 22
PY2024 $696.86 31
PY2025 $589.62 24

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.

Cite this record.

Plain
MARK C LEE, NPI 1558322479. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1558322479.
APA 7
IndustryPayments. (2026). MARK C LEE, NPI 1558322479 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1558322479
Bluebook
MARK C LEE, NPI 1558322479, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1558322479.

Source: Centers for Medicare & Medicaid Services, Open Payments.