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

KENNETH WEITUNG LIEN

Allopathic & Osteopathic Physicians Allergy & Immunology Allergy

NPI
1396823092
CMS profile
335297
Location
CASTRO VALLEY, 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 · PY2021 · Entire year

$1,294.62

58 records · 0 disputed

Summary and payment records

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

“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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,294.62 58

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

KENNETH WEITUNG LIEN

NPI 1396823092 · CMS profile ID 335297

Allopathic & Osteopathic Physicians / Allergy & Immunology / Allergy

CASTRO VALLEY, 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.

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.

General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1396823092?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
KENNETH WEITUNG LIEN, NPI 1396823092, CMS profile ID 335297. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1396823092?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). KENNETH WEITUNG LIEN, NPI 1396823092, CMS profile ID 335297. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1396823092?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
KENNETH WEITUNG LIEN, NPI 1396823092, CMS profile ID 335297, IndustryPayments, General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1396823092?year=2021&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

58 matching records · $1,294.62 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 58 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 1–50 of 58.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
BioCryst US Sales Co., LLC $23.9812/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 849115609 CMS
GlaxoSmithKline, LLC. $12.0712/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802380417 CMS
Covis Pharma GmBH $22.7811/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 844399617 CMS
Covis Pharma GmBH $22.7811/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 847693798 CMS
ALK-Abello, Inc $25.0111/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 809207631 CMS
Regeneron Healthcare Solutions, Inc. $39.2211/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 809599495 CMS
Greer Laboratories, Inc. $15.6311/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 800260955 CMS
AstraZeneca Pharmaceuticals LP $20.3911/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829624311 CMS
AstraZeneca Pharmaceuticals LP $22.7910/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829816449 CMS
GlaxoSmithKline, LLC. $11.7210/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802182587 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.1810/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560096 CMS
Genentech USA, Inc. $18.9409/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835936845 CMS
GlaxoSmithKline, LLC. $22.5009/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802139531 CMS
GlaxoSmithKline, LLC. $12.6509/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802560177 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $31.2309/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560098 CMS
GlaxoSmithKline, LLC. $30.7308/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803046893 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.6308/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 820049737 CMS
AstraZeneca Pharmaceuticals LP $24.6108/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829493327 CMS
Takeda Pharmaceuticals U.S.A., Inc. $30.7608/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 820049733 CMS
ALK-Abello, Inc $38.3208/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 809207635 CMS
Mylan Specialty L.P. $23.4608/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965426365 CMS
Covis Pharma GmBH $32.8507/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 844399615 CMS
Covis Pharma GmBH $32.8507/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 847693794 CMS
Greer Laboratories, Inc. $20.1907/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 800260953 CMS
GlaxoSmithKline, LLC. $15.8207/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802790781 CMS
Regeneron Healthcare Solutions, Inc. $28.3807/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 809599493 CMS
AstraZeneca Pharmaceuticals LP $23.8806/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829748143 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $23.1806/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560100 CMS
AstraZeneca Pharmaceuticals LP $11.8805/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829872041 CMS
AstraZeneca Pharmaceuticals LP $7.3205/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830231275 CMS
GlaxoSmithKline, LLC. $26.8205/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 801643447 CMS
Genentech USA, Inc. $23.5805/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835936841 CMS
Covis Pharma GmBH $30.1305/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 847693803 CMS
AstraZeneca Pharmaceuticals LP $24.5705/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829610045 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $29.2305/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560102 CMS
GlaxoSmithKline, LLC. $15.5504/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802707833 CMS
GlaxoSmithKline, LLC. $13.0804/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803146599 CMS
GlaxoSmithKline, LLC. $35.1404/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803122925 CMS
Genentech USA, Inc. $13.4203/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 835936839 CMS
Teva Pharmaceuticals USA, Inc. $19.4103/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 839716273 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $23.6003/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560104 CMS
AstraZeneca Pharmaceuticals LP $22.2103/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829426063 CMS
GlaxoSmithKline, LLC. $12.9003/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803158921 CMS
GlaxoSmithKline, LLC. $15.8003/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802062253 CMS
AstraZeneca Pharmaceuticals LP $11.2803/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830085095 CMS
GlaxoSmithKline, LLC. $22.7803/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803143841 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.4803/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 820049729 CMS
GlaxoSmithKline, LLC. $16.0202/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802379671 CMS
GlaxoSmithKline, LLC. $12.9802/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 802490553 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.6502/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763560106 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $797.32 49
PY2020 $797.64 41
PY2021 $1,294.62 58
PY2022 $1,058.37 48
PY2023 $1,418.43 77
PY2024 $1,375.77 47
PY2025 $2,085.13 83

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.