Fernando C. De Leon, M.D.

NPI 1922003060ActiveIndividual· Internal Medicine, Pulmonary Disease· Columbia, MD

Internal Medicine, Pulmonary Disease (M.D.) in Columbia, Maryland, trained at Boston University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,430,105 for 4,196 claims, against $180,395 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 12 companies reporting payments in 2025, $868.42 in all, mostly food and beverage.

Overview

NPI	1922003060
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 16, 2005
Last updated in NPPES	Oct 18, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Pulmonary Disease Primary	207RP1001X	D0046120	MD
Internal Medicine	207R00000X	D0046120	MD
Internal Medicine, Critical Care Medicine	207RC0200X	D0046120	MD

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Pulmonary Disease (MD)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	904
Services billed	2,666 across 26 procedure codes
Paid by Medicare	$180,395

Part D prescriptions in 2024

Prescriptions (claims)	4,196 · 5,375 30-day fills
Patients	573
Total drug cost	$1,430,105

Medicare sources and data years

Education and affiliations

Medical school	Boston University School of Medicine
Graduation year	1988
Medicare specialty	Pulmonary Disease
Secondary specialties	Critical Care (Intensivists)