IndustryPayments
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

WELLMAN TSANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1215017538
CMS profile
326715
Location
SAN FRANCISCO, CA

General Payments · PY2018–2019

$4,156.90

  • Reported across 210 records
  • CMS publication 2026-01-23

Latest program year · PY2019

$1,703.88

77 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.

Related groups: Internal Medicine CA All categories

By nature of payment

PY2019 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,703.88 77

By paying entity

PY2019 · sorted by reported total

Paying entityAmountRecords
Janssen Pharmaceuticals, Inc $603.78 29
Amgen Inc. $247.12 7
Boehringer Ingelheim Pharmaceuticals, Inc. $205.68 6
Merck Sharp & Dohme Corporation $168.84 11
Acerta Pharma LLC $150.80 8
Astellas Pharma US Inc $65.46 3
Kowa Pharmaceuticals America, Inc. $59.77 3
E.R. Squibb & Sons, L.L.C. $51.77 3
GlaxoSmithKline, LLC. $42.81 2
Regeneron Healthcare Solutions, Inc. $25.61 1
Amarin Pharma Inc. $24.43 1
Avanir Pharmaceuticals, Inc. $24.40 1
Hikma Pharmaceuticals USA $20.01 1
IRONWOOD PHARMACEUTICALS, INC $13.40 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $2,453.02 133
PY2019 $1,703.88 77

Payment records · PY2019 (77)

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

Program year 2019 2018 Record-level detail is published for PY2019; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amarin Pharma Inc. $24.43 09/25/2019 Food and Beverage Undisputed 01/23/2026 699217851 CMS
Amgen Inc. $19.08 02/22/2019 Food and Beverage Undisputed 01/23/2026 663169720 CMS
Amgen Inc. $26.52 04/18/2019 Food and Beverage Undisputed 01/23/2026 663169701 CMS
Amgen Inc. $124.99 05/14/2019 Food and Beverage Undisputed 01/23/2026 663169717 CMS
Amgen Inc. $20.10 06/12/2019 Food and Beverage Undisputed 01/23/2026 663169705 CMS
Amgen Inc. $4.64 07/26/2019 Food and Beverage Undisputed 01/23/2026 663169709 CMS
Amgen Inc. $24.66 08/08/2019 Food and Beverage Undisputed 01/23/2026 663169711 CMS
Amgen Inc. $27.13 10/10/2019 Food and Beverage Undisputed 01/23/2026 663169713 CMS
Astellas Pharma US Inc $20.92 01/04/2019 Food and Beverage Undisputed 01/23/2026 655783779 CMS
Astellas Pharma US Inc $23.63 02/21/2019 Food and Beverage Undisputed 01/23/2026 655783785 CMS
Astellas Pharma US Inc $20.91 06/07/2019 Food and Beverage Undisputed 01/23/2026 655783789 CMS
AstraZeneca Pharmaceuticals LP $22.72 02/02/2019 Food and Beverage Undisputed 01/23/2026 709019515 CMS
AstraZeneca Pharmaceuticals LP $17.65 02/19/2019 Food and Beverage Undisputed 01/23/2026 709018199 CMS
AstraZeneca Pharmaceuticals LP $19.71 05/22/2019 Food and Beverage Undisputed 01/23/2026 709019663 CMS
AstraZeneca Pharmaceuticals LP $20.77 05/30/2019 Food and Beverage Undisputed 01/23/2026 709019299 CMS
AstraZeneca Pharmaceuticals LP $21.18 06/26/2019 Food and Beverage Undisputed 01/23/2026 709018215 CMS
AstraZeneca Pharmaceuticals LP $18.78 07/31/2019 Food and Beverage Undisputed 01/23/2026 709020297 CMS
AstraZeneca Pharmaceuticals LP $9.89 08/14/2019 Food and Beverage Undisputed 01/23/2026 709019685 CMS
AstraZeneca Pharmaceuticals LP $20.10 09/12/2019 Food and Beverage Undisputed 01/23/2026 709020415 CMS
Avanir Pharmaceuticals, Inc. $24.40 07/17/2019 Food and Beverage Undisputed 01/23/2026 653580163 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $24.32 02/06/2019 Food and Beverage Undisputed 01/23/2026 700168229 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.10 02/15/2019 Food and Beverage Undisputed 01/23/2026 700168227 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.66 03/01/2019 Food and Beverage Undisputed 01/23/2026 700039253 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $124.38 03/26/2019 Food and Beverage Undisputed 01/23/2026 700168231 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.31 06/20/2019 Food and Beverage Undisputed 01/23/2026 700044423 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.91 09/06/2019 Food and Beverage Undisputed 01/23/2026 700168225 CMS
E.R. Squibb & Sons, L.L.C. $19.06 01/17/2019 Food and Beverage Undisputed 01/23/2026 651463245 CMS
E.R. Squibb & Sons, L.L.C. $17.09 05/23/2019 Food and Beverage Undisputed 01/23/2026 651463247 CMS
E.R. Squibb & Sons, L.L.C. $15.62 08/30/2019 Food and Beverage Undisputed 01/23/2026 651463249 CMS
GlaxoSmithKline, LLC. $19.93 03/12/2019 Food and Beverage Undisputed 01/23/2026 670689925 CMS
GlaxoSmithKline, LLC. $22.88 09/27/2019 Food and Beverage Undisputed 01/23/2026 671037285 CMS
Hikma Pharmaceuticals USA $20.01 01/30/2019 Food and Beverage Undisputed 01/23/2026 688418887 CMS
Ironwood Pharmaceuticals, Inc $13.40 01/23/2019 Food and Beverage Undisputed 01/23/2026 709215865 CMS
Janssen Pharmaceuticals, Inc $8.02 01/02/2019 Food and Beverage Undisputed 01/23/2026 659347419 CMS
Janssen Pharmaceuticals, Inc $14.43 01/09/2019 Food and Beverage Undisputed 01/23/2026 659347421 CMS
Janssen Pharmaceuticals, Inc $19.93 01/18/2019 Food and Beverage Undisputed 01/23/2026 659347423 CMS
Janssen Pharmaceuticals, Inc $9.61 01/23/2019 Food and Beverage Undisputed 01/23/2026 659347425 CMS
Janssen Pharmaceuticals, Inc $32.88 02/14/2019 Food and Beverage Undisputed 01/23/2026 659347441 CMS
Janssen Pharmaceuticals, Inc $8.45 02/27/2019 Food and Beverage Undisputed 01/23/2026 659347443 CMS
Janssen Pharmaceuticals, Inc $8.19 03/07/2019 Food and Beverage Undisputed 01/23/2026 659347445 CMS
Janssen Pharmaceuticals, Inc $33.30 03/21/2019 Food and Beverage Undisputed 01/23/2026 659347451 CMS
Janssen Pharmaceuticals, Inc $13.43 03/27/2019 Food and Beverage Undisputed 01/23/2026 659347453 CMS
Janssen Pharmaceuticals, Inc $9.63 04/01/2019 Food and Beverage Undisputed 01/23/2026 659347455 CMS
Janssen Pharmaceuticals, Inc $27.34 04/26/2019 Food and Beverage Undisputed 01/23/2026 659347459 CMS
Janssen Pharmaceuticals, Inc $7.89 05/08/2019 Food and Beverage Undisputed 01/23/2026 659347463 CMS
Janssen Pharmaceuticals, Inc $20.04 05/16/2019 Food and Beverage Undisputed 01/23/2026 659347465 CMS
Janssen Pharmaceuticals, Inc $28.22 05/24/2019 Food and Beverage Undisputed 01/23/2026 659347469 CMS
Janssen Pharmaceuticals, Inc $9.18 06/05/2019 Food and Beverage Undisputed 01/23/2026 659347477 CMS
Janssen Pharmaceuticals, Inc $12.10 06/12/2019 Food and Beverage Undisputed 01/23/2026 659347479 CMS
Janssen Pharmaceuticals, Inc $124.99 06/14/2019 Food and Beverage Undisputed 01/23/2026 659347481 CMS
Janssen Pharmaceuticals, Inc $28.12 06/21/2019 Food and Beverage Undisputed 01/23/2026 659347489 CMS
Janssen Pharmaceuticals, Inc $16.93 07/08/2019 Food and Beverage Undisputed 01/23/2026 659347491 CMS
Janssen Pharmaceuticals, Inc $8.72 07/17/2019 Food and Beverage Undisputed 01/23/2026 659347497 CMS
Janssen Pharmaceuticals, Inc $26.77 07/26/2019 Food and Beverage Undisputed 01/23/2026 659347501 CMS
Janssen Pharmaceuticals, Inc $1.00 08/23/2019 Food and Beverage Undisputed 01/23/2026 659347503 CMS
Janssen Pharmaceuticals, Inc $27.26 08/23/2019 Food and Beverage Undisputed 01/23/2026 659347505 CMS
Janssen Pharmaceuticals, Inc $10.76 08/26/2019 Food and Beverage Undisputed 01/23/2026 659347507 CMS
Janssen Pharmaceuticals, Inc $9.63 09/04/2019 Food and Beverage Undisputed 01/23/2026 659347509 CMS
Janssen Pharmaceuticals, Inc $34.03 09/19/2019 Food and Beverage Undisputed 01/23/2026 659347511 CMS
Janssen Pharmaceuticals, Inc $12.12 09/27/2019 Food and Beverage Undisputed 01/23/2026 659347513 CMS
Janssen Pharmaceuticals, Inc $9.12 09/27/2019 Food and Beverage Undisputed 01/23/2026 659347515 CMS
Janssen Pharmaceuticals, Inc $31.69 12/06/2019 Food and Beverage Undisputed 01/23/2026 659347519 CMS
Kowa Pharmaceuticals America, Inc. $19.33 05/03/2019 Food and Beverage Undisputed 01/23/2026 630305841 CMS
Kowa Pharmaceuticals America, Inc. $19.73 06/13/2019 Food and Beverage Undisputed 01/23/2026 630305843 CMS
Kowa Pharmaceuticals America, Inc. $20.71 07/24/2019 Food and Beverage Undisputed 01/23/2026 630305845 CMS
Merck Sharp & Dohme Corporation $2.61 01/10/2019 Food and Beverage Undisputed 01/23/2026 695205569 CMS
Merck Sharp & Dohme Corporation $14.86 01/10/2019 Food and Beverage Undisputed 01/23/2026 695210615 CMS
Merck Sharp & Dohme Corporation $16.53 02/13/2019 Food and Beverage Undisputed 01/23/2026 695268301 CMS
Merck Sharp & Dohme Corporation $16.36 03/13/2019 Food and Beverage Undisputed 01/23/2026 695345891 CMS
Merck Sharp & Dohme Corporation $19.25 03/27/2019 Food and Beverage Undisputed 01/23/2026 695386452 CMS
Merck Sharp & Dohme Corporation $19.78 04/19/2019 Food and Beverage Undisputed 01/23/2026 695427571 CMS
Merck Sharp & Dohme Corporation $17.16 05/29/2019 Food and Beverage Undisputed 01/23/2026 695528187 CMS
Merck Sharp & Dohme Corporation $19.48 06/27/2019 Food and Beverage Undisputed 01/23/2026 695627671 CMS
Merck Sharp & Dohme Corporation $17.16 08/02/2019 Food and Beverage Undisputed 01/23/2026 695679281 CMS
Merck Sharp & Dohme Corporation $5.99 08/09/2019 Food and Beverage Undisputed 01/23/2026 695694127 CMS
Merck Sharp & Dohme Corporation $19.66 09/11/2019 Food and Beverage Undisputed 01/23/2026 695730093 CMS
Regeneron Healthcare Solutions, Inc. $25.61 06/28/2019 Food and Beverage Undisputed 01/23/2026 673491171 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
Source files
Dataset page · Bulk file · PY2018 , PY2019
Generated from
OP_DTL_GNRL_PGYR2019_P01232026_01102026.csv

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