Dr. Patrick Chang, MD

NPI: 1861467656
Total Payments
$1,193
2022 Payments
$13.89
Companies
17
Transactions
87

Payment Breakdown by Category

Food & Beverage$1,193 (100.0%)

Payments by Nature

Nature of Payment Amount Transactions Share
Food and Beverage $1,193 87 100.0%

Top Paying Companies

Company Total Records Latest Year
GlaxoSmithKline, LLC. $220.33 17 $0 (2018)
AstraZeneca Pharmaceuticals LP $175.79 9 $0 (2018)
Lilly USA, LLC $173.52 16 $0 (2018)
Janssen Pharmaceuticals, Inc $113.53 8 $0 (2017)
Novo Nordisk Inc $110.20 10 $0 (2017)
SANOFI-AVENTIS U.S. LLC $79.11 5 $0 (2018)
Boehringer Ingelheim Pharmaceuticals, Inc. $74.86 5 $0 (2018)
Amgen Inc. $60.62 3 $0 (2017)
Astellas Pharma US Inc $39.84 2 $0 (2017)
Takeda Pharmaceuticals America, Inc. $34.23 4 $0 (2017)

Payment History by Year

Year Amount Transactions Top Company
2022 $13.89 1 ABBVIE INC. ($13.89)
2018 $213.34 13 GlaxoSmithKline, LLC. ($80.95)
2017 $965.96 73 Lilly USA, LLC ($160.11)

All Payment Transactions

87 individual payment records from CMS Open Payments — Page 1 of 4

Date Company Product Nature Form Amount Type
11/22/2022 ABBVIE INC. VRAYLAR (Drug) Food and Beverage In-kind items and services $13.89 General
Category: NEUROSCIENCE
03/29/2018 AstraZeneca Pharmaceuticals LP FARXIGA (Drug) Food and Beverage In-kind items and services $17.02 General
Category: Cardiovascular and Metabolism
03/17/2018 GlaxoSmithKline, LLC. TRELEGY ELLIPTA (Drug) Food and Beverage In-kind items and services $15.61 General
Category: RESPIRATORY
03/14/2018 Lilly USA, LLC TRADJENTA (Drug), JARDIANCE, GLYXAMBI Food and Beverage In-kind items and services $13.41 General
Category: Diabetes
03/12/2018 GlaxoSmithKline, LLC. SHINGRIX (Biological), BOOSTRIX Food and Beverage In-kind items and services $13.92 General
Category: VACCINES
02/28/2018 Boehringer Ingelheim Pharmaceuticals, Inc. STIOLTO RESPIMAT (Drug) Food and Beverage In-kind items and services $16.44 General
Category: RESPIRATORY
02/21/2018 SANOFI-AVENTIS U.S. LLC SOLIQUA (Drug) Food and Beverage In-kind items and services $14.64 General
Category: DIABETES
02/14/2018 Daiichi Sankyo Inc. Welchol (Drug) Food and Beverage In-kind items and services $19.23 General
Category: Metabolism
02/06/2018 GlaxoSmithKline, LLC. BREO (Drug) Food and Beverage In-kind items and services $16.00 General
Category: RESPIRATORY
02/03/2018 GlaxoSmithKline, LLC. BREO (Drug) Food and Beverage In-kind items and services $19.36 General
Category: RESPIRATORY
01/31/2018 SANOFI-AVENTIS U.S. LLC TOUJEO (Drug) Food and Beverage In-kind items and services $16.91 General
Category: DIABETES
01/17/2018 AstraZeneca Pharmaceuticals LP FARXIGA (Drug) Food and Beverage In-kind items and services $18.90 General
Category: Cardiovascular and Metabolism
01/10/2018 Boehringer Ingelheim Pharmaceuticals, Inc. STIOLTO RESPIMAT (Drug) Food and Beverage In-kind items and services $15.84 General
Category: RESPIRATORY
01/05/2018 GlaxoSmithKline, LLC. Food and Beverage In-kind items and services $16.06 General
12/22/2017 Janssen Pharmaceuticals, Inc INVOKANA (Drug), INVOKAMET, XARELTO Food and Beverage In-kind items and services $18.61 General
Category: Cardiovascular & Metabolism
12/20/2017 GlaxoSmithKline, LLC. BREO (Drug), INCRUSE Food and Beverage In-kind items and services $15.67 General
Category: RESPIRATORY
12/13/2017 Lilly USA, LLC TRADJENTA (Drug), JARDIANCE, GLYXAMBI Food and Beverage In-kind items and services $16.29 General
Category: Diabetes
12/09/2017 AstraZeneca Pharmaceuticals LP FARXIGA (Drug) Food and Beverage In-kind items and services $12.97 General
Category: Cardiovascular and Metabolism
12/06/2017 Lilly USA, LLC TRULICITY (Drug), BASAGLAR Food and Beverage In-kind items and services $14.11 General
Category: Diabetes
12/01/2017 Novo Nordisk Inc Victoza (Drug), Tresiba Food and Beverage In-kind items and services $11.20 General
Category: Diabetes
11/22/2017 Novo Nordisk Inc Victoza (Drug), Tresiba Food and Beverage In-kind items and services $8.55 General
Category: Diabetes
11/15/2017 Takeda Pharmaceuticals America, Inc. Trintellix (Drug) Food and Beverage In-kind items and services $12.70 General
Category: Central Nervous System (CNS)
11/15/2017 Lilly USA, LLC TRADJENTA (Drug), JARDIANCE, GLYXAMBI Food and Beverage In-kind items and services $11.71 General
Category: Diabetes
11/15/2017 Takeda Pharmaceuticals America, Inc. Trintellix (Drug) Food and Beverage In-kind items and services $2.43 General
Category: Central Nervous System (CNS)
11/10/2017 Lilly USA, LLC TRADJENTA (Drug), JARDIANCE, GLYXAMBI Food and Beverage In-kind items and services $1.24 General
Category: Diabetes

About Dr. Patrick Chang, MD

Dr. Patrick Chang, MD is a Internal Medicine healthcare provider based in Mather, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 02/23/2006. The National Provider Identifier (NPI) number assigned to this provider is 1861467656.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Patrick Chang, MD has received a total of $1,193 in payments from pharmaceutical and medical device companies, with $13.89 received in 2022. These payments were reported across 87 transactions from 17 companies. The most common payment nature is "Food and Beverage" ($1,193).

Practice Information

  • Specialty Internal Medicine
  • Location Mather, CA
  • Active Since 02/23/2006
  • Last Updated 12/26/2025
  • Taxonomy Code 207R00000X
  • Entity Type Individual
  • NPI Number 1861467656

Products in Payments

  • TRADJENTA (Drug) $105.45
  • FARXIGA (Drug) $90.58
  • ANORO (Drug) $87.42
  • Victoza (Drug) $79.43
  • INVOKANA (Drug) $79.21
  • BREO (Drug) $69.66
  • TRULICITY (Drug) $68.07
  • SOLIQUA (Drug) $62.20
  • BEVESPI AEROSPHERE (Drug) $62.06
  • Myrbetriq (Drug) $39.84
  • Prolia (Biological) $39.02
  • XARELTO (Drug) $34.32
  • Trintellix (Drug) $34.23
  • STIOLTO RESPIMAT (Drug) $32.28
  • SPIRIVA (Drug) $25.46
  • SYMBICORT (Drug) $23.15
  • Repatha (Biological) $21.60
  • Welchol (Drug) $19.23
  • INCRUSE (Drug) $17.66
  • JARDIANCE (Drug) $17.12

Data Sources

Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.

Internal Medicine Doctors in Mather