Derek R. Patel, M.D.

NPI 1073538385ActiveIndividual· Internal Medicine, Gastroenterology· San Diego, CA

Internal Medicine, Gastroenterology (M.D.) in San Diego, California, trained at University of California, Davis School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $2,034,212 for 743 claims, against $73,582 paid for services in 2024. Aimmune Therapeutics, Inc. reported $18.53 in payments in 2025, mostly food and beverage.

Overview

NPI	1073538385
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jul 13, 2006
Last updated in NPPES	Oct 18, 2018

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	A69111	CA
Internal Medicine	207R00000X	A69111	CA

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 - Gastroenterology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	388
Services billed	685 across 38 procedure codes
Paid by Medicare	$73,582

Part D prescriptions in 2024

Prescriptions (claims)	743 · 1,014 30-day fills
Patients	265
Total drug cost	$2,034,212
Generic share	58% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Davis School of Medicine
Graduation year	1997
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth