Dr. Ralph Defronzo, MD

NPI: 1851408843
Total Payments
$1.3M
2024 Payments
$142,981
Companies
32
Transactions
868

Payment Breakdown by Category

Other$843,098 (65.5%)
Consulting$246,605 (19.2%)
Travel$174,468 (13.6%)
Food & Beverage$22,091 (1.7%)
Education$23.84 (0.0%)

Payments by Nature

Nature of Payment Amount Transactions Share
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $824,298 235 64.1%
Consulting Fee $246,605 63 19.2%
Travel and Lodging $174,468 304 13.6%
Food and Beverage $22,091 259 1.7%
Honoraria $18,800 5 1.5%
Education $23.84 2 0.0%

Top Paying Companies

Company Total Records Latest Year
AstraZeneca Pharmaceuticals LP $640,133 463 $0 (2024)
Novo Nordisk Inc $277,529 200 $0 (2024)
Corcept Therapeutics $120,472 50 $0 (2024)
Hikma Pharmaceuticals USA $66,846 19 $0 (2024)
Janssen Pharmaceuticals, Inc $48,109 40 $0 (2020)
Alnylam Pharmaceuticals Inc. $17,980 2 $0 (2024)
Janssen Scientific Affairs, LLC $13,042 14 $0 (2018)
PFIZER INC. $12,800 4 $0 (2024)
Novo Nordisk AS $9,865 3 $0 (2023)
Boehringer Ingelheim (Phil.) Inc. $9,060 2 $0 (2021)

Payment History by Year

Year Amount Transactions Top Company
2024 $142,981 71 Corcept Therapeutics ($65,974)
2023 $100,208 50 Corcept Therapeutics ($51,048)
2022 $76,211 54 AstraZeneca Pharmaceuticals LP ($47,930)
2021 $81,276 47 AstraZeneca Pharmaceuticals LP ($26,752)
2020 $179,452 85 AstraZeneca Pharmaceuticals LP ($112,212)
2019 $186,919 140 AstraZeneca Pharmaceuticals LP ($112,547)
2018 $290,960 225 AstraZeneca Pharmaceuticals LP ($165,930)
2017 $228,279 196 AstraZeneca Pharmaceuticals LP ($145,682)

All Payment Transactions

868 individual payment records from CMS Open Payments — Page 1 of 35

Date Company Product Nature Form Amount Type
12/31/2024 Regeneron Pharmaceuticals, Inc. Travel and Lodging In-kind items and services $303.97 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $149.28 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $132.84 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $105.64 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $102.51 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $75.63 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $65.99 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $61.30 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $42.16 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $33.12 General
12/31/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $24.62 General
12/17/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $150.00 General
12/16/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $135.51 General
12/16/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $108.13 General
12/16/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $53.38 General
12/16/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $34.22 General
12/16/2024 Regeneron Pharmaceuticals, Inc. Food and Beverage In-kind items and services $20.53 General
11/13/2024 Xeris Pharmaceuticals, Inc. RECORLEV (Drug) Food and Beverage In-kind items and services $133.07 General
Category: Adrenal steroidogenesis inhibitor
11/06/2024 Corcept Therapeutics Korlym (Drug) Travel and Lodging Cash or cash equivalent $598.75 General
Category: Endocrinology
11/06/2024 Corcept Therapeutics Korlym (Drug) Travel and Lodging Cash or cash equivalent $526.95 General
Category: Endocrinology
11/06/2024 Corcept Therapeutics Korlym (Drug) Travel and Lodging Cash or cash equivalent $33.00 General
Category: Endocrinology
11/06/2024 Corcept Therapeutics Korlym (Drug) Travel and Lodging Cash or cash equivalent $32.00 General
Category: Endocrinology
11/03/2024 Eli Lilly and Company MOUNJARO (Drug) Food and Beverage In-kind items and services $76.45 General
Category: Diabetes
10/30/2024 Corcept Therapeutics Korlym (Drug) Travel and Lodging Cash or cash equivalent $676.93 General
Category: Endocrinology
10/17/2024 Corcept Therapeutics Korlym (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $8,000.00 General
Category: Endocrinology

About Dr. Ralph Defronzo, MD

Dr. Ralph Defronzo, MD is a Endocrinology, Diabetes & Metabolism healthcare provider based in San Antonio, Texas. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 08/24/2006. The National Provider Identifier (NPI) number assigned to this provider is 1851408843.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Ralph Defronzo, MD has received a total of $1.3M in payments from pharmaceutical and medical device companies, with $142,981 received in 2024. These payments were reported across 868 transactions from 32 companies. The most common payment nature is "Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program" ($824,298).

Practice Information

  • Specialty Endocrinology, Diabetes & Metabolism
  • Other Specialties Diabetes & Metabolism
  • Location San Antonio, TX
  • Active Since 08/24/2006
  • Last Updated 05/02/2011
  • Taxonomy Code 207RE0101X
  • Entity Type Individual
  • NPI Number 1851408843

Products in Payments

  • FARXIGA (Drug) $590,419
  • Korlym (Drug) $120,472
  • Victoza (Drug) $104,318
  • Ozempic (Drug) $101,744
  • INVOKANA (Drug) $61,133
  • BYDUREON (Drug) $36,651
  • JARDIANCE (Drug) $16,360
  • GLYXAMBI (Drug) $9,060
  • KIDNEYINTELX BLOOD COLLECTION CONVENIENCE KIT (Device) $8,688
  • Kerendia (Drug) $8,036
  • Tresiba (Drug) $7,474
  • JANUVIA (Drug) $4,045
  • CYCLOSET (Drug) $2,490
  • LOKELMA (Drug) $1,270
  • Xultophy (Drug) $260.00
  • RECORLEV (Drug) $133.07
  • AFREZZA (Drug) $126.60
  • CoreValve Evolut (Device) $125.00
  • Strensiq (Drug) $125.00
  • JANUMET (Drug) $123.99

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.

Endocrinology, Diabetes & Metabolism Doctors in San Antonio