David Chen, M.D.

NPI 1982634788ActiveIndividual· Internal Medicine, Cardiovascular Disease· Fontana, CA

Internal Medicine, Cardiovascular Disease (M.D.) in Fontana, California, trained at Saint Louis University School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $456,308 for 3,937 claims, against $1,073 paid for services in 2024. Pfizer Inc. was the largest of 2 companies reporting payments in 2024, $41.72 in all, mostly food and beverage.

Overview

NPI	1982634788
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jul 4, 2006
Last updated in NPPES	Nov 29, 2021

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	A85013	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Internal Medicine (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	36
Services billed	42 across 7 procedure codes
Paid by Medicare	$1,073

Part D prescriptions in 2024

Prescriptions (claims)	3,937 · 11,528 30-day fills
Patients	805
Total drug cost	$456,308
Generic share	82% of claims

Medicare sources and data years

Education and affiliations

Medical school	Saint Louis University School of Medicine
Graduation year	2002
Medicare specialty	Internal Medicine
Secondary specialties	Cardiovascular Disease (Cardiology)