Gregory J. Dilorenzo, D.O

NPI 1861404048ActiveIndividual· Internal Medicine· Broomfield, CO

Internal Medicine (D.O) in Broomfield, Colorado, trained at Kansas City University of Med & Biosciences, College of Osteo Med (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $1,111,387 for 10,771 claims, against $10,338 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 13 companies reporting payments in 2025, $520.01 in all, mostly food and beverage.

Overview

NPI	1861404048
Status	Active
Entity type	Individual
Credential	D.O
Sole proprietor	No
NPI issued	Aug 13, 2006
Last updated in NPPES	Oct 11, 2024
Certified by provider	Oct 11, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	DR.0031860	CO

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 - Internal Medicine (CO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	60
Services billed	962 across 33 procedure codes
Paid by Medicare	$10,338

Part D prescriptions in 2024

Prescriptions (claims)	10,771 · 25,489 30-day fills
Patients	1,136
Total drug cost	$1,111,387
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	Kansas City University of Med & Biosciences, College of Osteo Med
Graduation year	1991
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth