Covered recipient · General Payments record

DAVID A CHAPPELL

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI: 1598732463
CMS profile: 299450
Location: PETALUMA, CA

General Payments · PY2018–2024

$20,485.13

Reported across 606 records
CMS publication 2026-01-23

Latest program year · PY2024

$1,790.54

74 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 payment	Amount	Records
Food and Beverage	$1,696.03	72
Education	$94.51	2

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Lilly USA, LLC	$545.33	21
Boehringer Ingelheim Pharmaceuticals, Inc.	$151.50	6
PFIZER INC.	$142.49	8
ABBVIE INC.	$138.94	6
Astellas Pharma US Inc	$132.10	3
Xeris Pharmaceuticals, Inc.	$106.94	5
Novo Nordisk AS	$97.16	5
Bayer HealthCare Pharmaceuticals Inc.	$85.50	4
Amgen Inc.	$78.93	3
Radius Health, Inc.	$62.70	3
Lexicon Pharmaceuticals, Inc.	$57.83	2
DEXCOM, INC.	$48.09	2
Acella Pharmaceuticals, LLC	$48.05	2
Abbott Laboratories	$28.15	1
Alexion Pharmaceuticals, Inc.	$27.07	1
Corcept Therapeutics	$21.39	1
Tandem Diabetes Care, Inc.	$18.37	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$10,806.94	138
PY2019	$1,200.54	81
PY2020	$1,230.73	66
PY2021	$2,400.04	102
PY2022	$1,699.07	78
PY2023	$1,357.27	67
PY2024	$1,790.54	74

Payment records · PY2024 (74)

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

Program year 2024 2018 2019 2020 2021 2022 2023 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
Abbott Laboratories	$28.15	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1125145083	CMS
ABBVIE INC.	$28.56	02/16/2024	Food and Beverage	Undisputed	01/23/2026	1103445072	CMS
ABBVIE INC.	$32.87	02/20/2024	Food and Beverage	Undisputed	01/23/2026	1103445074	CMS
ABBVIE INC.	$12.89	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1103445076	CMS
ABBVIE INC.	$19.42	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1103445078	CMS
ABBVIE INC.	$24.38	04/26/2024	Food and Beverage	Undisputed	01/23/2026	1103445080	CMS
ABBVIE INC.	$20.82	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1103445082	CMS
Acella Pharmaceuticals, LLC	$19.93	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1126635350	CMS
Acella Pharmaceuticals, LLC	$28.12	11/19/2024	Food and Beverage	Undisputed	01/23/2026	1126635352	CMS
Alexion Pharmaceuticals, Inc.	$27.07	02/23/2024	Food and Beverage	Undisputed	01/23/2026	1093989869	CMS
Amgen Inc.	$25.64	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1111546381	CMS
Amgen Inc.	$22.03	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1111546377	CMS
Amgen Inc.	$31.26	10/25/2024	Food and Beverage	Undisputed	01/23/2026	1111546379	CMS
Astellas Pharma US Inc	$26.71	01/26/2024	Food and Beverage	Undisputed	01/23/2026	1139313436	CMS
Astellas Pharma US Inc	$79.99	02/09/2024	Education	Undisputed	01/23/2026	1139344136	CMS
Astellas Pharma US Inc	$25.40	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1139432650	CMS
Bayer Healthcare Pharmaceuticals Inc.	$21.09	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1086137247	CMS
Bayer Healthcare Pharmaceuticals Inc.	$24.40	03/19/2024	Food and Beverage	Undisputed	01/23/2026	1086139487	CMS
Bayer Healthcare Pharmaceuticals Inc.	$19.18	09/17/2024	Food and Beverage	Undisputed	01/23/2026	1086149027	CMS
Bayer Healthcare Pharmaceuticals Inc.	$20.83	10/08/2024	Food and Beverage	Undisputed	01/23/2026	1086267271	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$28.61	02/16/2024	Food and Beverage	Undisputed	01/23/2026	1118074548	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$24.20	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1118074542	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$22.48	08/05/2024	Food and Beverage	Undisputed	01/23/2026	1118074538	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$23.67	09/03/2024	Food and Beverage	Undisputed	01/23/2026	1118074540	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$25.84	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1118074544	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$26.70	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1118074546	CMS
Corcept Therapeutics	$21.39	02/12/2024	Food and Beverage	Undisputed	01/23/2026	1117730702	CMS
Dexcom, Inc.	$25.25	04/26/2024	Food and Beverage	Undisputed	01/23/2026	1153294699	CMS
Dexcom, Inc.	$22.84	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1153294701	CMS
Lexicon Pharmaceuticals, Inc.	$28.20	06/21/2024	Food and Beverage	Undisputed	01/23/2026	1081729935	CMS
Lexicon Pharmaceuticals, Inc.	$29.63	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1081729937	CMS
Lilly USA, LLC	$26.43	01/11/2024	Food and Beverage	Undisputed	01/23/2026	1136120534	CMS
Lilly USA, LLC	$21.29	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1136151547	CMS
Lilly USA, LLC	$27.98	02/20/2024	Food and Beverage	Undisputed	01/23/2026	1136151545	CMS
Lilly USA, LLC	$30.40	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1136136780	CMS
Lilly USA, LLC	$22.01	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1136142223	CMS
Lilly USA, LLC	$17.34	04/09/2024	Food and Beverage	Undisputed	01/23/2026	1136152874	CMS
Lilly USA, LLC	$27.80	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1136142221	CMS
Lilly USA, LLC	$25.70	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1136149428	CMS
Lilly USA, LLC	$34.53	05/10/2024	Food and Beverage	Undisputed	01/23/2026	1136128331	CMS
Lilly USA, LLC	$18.60	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1136126145	CMS
Lilly USA, LLC	$22.76	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1136149424	CMS
Lilly USA, LLC	$27.36	06/29/2024	Food and Beverage	Undisputed	01/23/2026	1136128333	CMS
Lilly USA, LLC	$26.46	08/01/2024	Food and Beverage	Undisputed	01/23/2026	1136149430	CMS
Lilly USA, LLC	$31.66	08/09/2024	Food and Beverage	Undisputed	01/23/2026	1136142225	CMS
Lilly USA, LLC	$28.76	08/17/2024	Food and Beverage	Undisputed	01/23/2026	1136128335	CMS
Lilly USA, LLC	$26.00	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1136136782	CMS
Lilly USA, LLC	$32.78	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1136128818	CMS
Lilly USA, LLC	$27.24	09/21/2024	Food and Beverage	Undisputed	01/23/2026	1136149426	CMS
Lilly USA, LLC	$10.78	09/25/2024	Food and Beverage	Undisputed	01/23/2026	1136149432	CMS
Lilly USA, LLC	$31.61	10/11/2024	Food and Beverage	Undisputed	01/23/2026	1136136784	CMS
Lilly USA, LLC	$27.84	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1136128820	CMS
Novo Nordisk Inc	$23.64	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1096750920	CMS
Novo Nordisk Inc	$20.84	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1097676513	CMS
Novo Nordisk Inc	$15.45	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1097321652	CMS
Novo Nordisk Inc	$22.14	10/01/2024	Food and Beverage	Undisputed	01/23/2026	1097449342	CMS
Novo Nordisk Inc	$15.09	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1097835399	CMS
PFIZER INC.	$21.61	02/09/2024	Food and Beverage	Undisputed	01/23/2026	1131127477	CMS
PFIZER INC.	$22.46	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1131525009	CMS
PFIZER INC.	$8.13	08/14/2024	Food and Beverage	Undisputed	01/23/2026	1130943955	CMS
PFIZER INC.	$16.40	09/11/2024	Food and Beverage	Undisputed	01/23/2026	1131993959	CMS
PFIZER INC.	$25.48	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1132120152	CMS
PFIZER INC.	$20.77	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1132114203	CMS
PFIZER INC.	$21.85	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1131011244	CMS
PFIZER INC.	$5.79	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1131164063	CMS
Radius Health, Inc.	$24.67	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1089945778	CMS
Radius Health, Inc.	$23.51	08/23/2024	Food and Beverage	Undisputed	01/23/2026	1089945784	CMS
Radius Health, Inc.	$14.52	08/23/2024	Education	Undisputed	01/23/2026	1089945790	CMS
Tandem Diabetes Care, Inc.	$18.37	08/26/2024	Food and Beverage	Undisputed	01/23/2026	1138749987	CMS
Xeris Pharmaceuticals, Inc.	$24.07	09/30/2024	Food and Beverage	Undisputed	01/23/2026	1144591722	CMS
Xeris Pharmaceuticals, Inc.	$22.24	11/01/2024	Food and Beverage	Undisputed	01/23/2026	1144591724	CMS
Xeris Pharmaceuticals, Inc.	$19.35	11/04/2024	Food and Beverage	Undisputed	01/23/2026	1144591728	CMS
Xeris Pharmaceuticals, Inc.	$18.35	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1144591726	CMS
Xeris Pharmaceuticals, Inc.	$22.93	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1144591730	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.