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

WEIYUN Z AI

Allopathic & Osteopathic Physicians Internal Medicine Medical Oncology

NPI
1649346842
CMS profile
467294
Location
SAN FRANCISCO, CA

General Payments · PY2018–2024

$33,723.79

  • Reported across 56 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$7,858.26

10 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
Consulting Fee $6,147.65 2
Travel and Lodging $1,385.87 3
Food and Beverage $324.74 5

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acrotech Biopharma Inc. $4,654.41 6
Gilead Sciences, Inc. $3,050.00 1
ADC Therapeutics America, Inc. $108.59 1
ABBVIE INC. $45.26 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $2,112.71 6
PY2019 $13,820.91 18
PY2020 $3,615.00 5
PY2021 $1,332.87 4
PY2022 $4,294.23 5
PY2023 $689.81 8
PY2024 $7,858.26 10

Payment records · PY2024 (10)

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
ABBVIE INC. $25.16 05/14/2024 Food and Beverage Undisputed 01/23/2026 1103188364 CMS
ABBVIE INC. $20.10 10/04/2024 Food and Beverage Undisputed 01/23/2026 1103188366 CMS
Acrotech Biopharma Inc. $150.93 10/24/2024 Travel and Lodging Undisputed 01/23/2026 1147104488 CMS
Acrotech Biopharma Inc. $149.24 10/25/2024 Food and Beverage Undisputed 01/23/2026 1147104490 CMS
Acrotech Biopharma Inc. $1,158.94 10/25/2024 Travel and Lodging Undisputed 01/23/2026 1147104492 CMS
Acrotech Biopharma Inc. $76.00 12/16/2024 Travel and Lodging Undisputed 01/23/2026 1147104494 CMS
Acrotech Biopharma Inc. $21.65 12/16/2024 Food and Beverage Undisputed 01/23/2026 1147104496 CMS
Acrotech Biopharma Inc. $3,097.65 12/16/2024 Consulting Fee Undisputed 01/23/2026 1147104498 CMS
ADC Therapeutics America, Inc. $108.59 03/17/2024 Food and Beverage Undisputed 01/23/2026 1121187400 CMS
Gilead Sciences, Inc. $3,050.00 11/28/2024 Consulting Fee Undisputed 01/23/2026 1133600161 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.