Christopher Paiji, MD

NPI 1720519010ActiveIndividual· Internal Medicine, Gastroenterology· Orange, CA

Internal Medicine, Gastroenterology (MD) in Orange, California, trained at University of California, Irvine, California College of Medicine (class of 2017). 64 Medicare patients in 2024, $17,626 paid; nearly all of their 113 Part D prescriptions were generic (90%). Boston Scientific Corporation was the largest of 7 companies reporting payments in 2025, $8,942 in all, mostly travel and lodging.

Overview

NPI	1720519010
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Mar 27, 2017
Last updated in NPPES	Jul 30, 2024
Certified by provider	Jul 30, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	A170265	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	64
Services billed	144 across 40 procedure codes
Paid by Medicare	$17,626

Part D prescriptions in 2024

Prescriptions (claims)	113 · 162 30-day fills
Patients	67
Total drug cost	$11,156
Generic share	90% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Irvine, California College of Medicine
Graduation year	2017
Medicare specialty	Gastroenterology
Telehealth	Offers telehealth