Mark E. Mueller, MD

NPI 1083607295ActiveIndividual· Internal Medicine· Murrieta, CA

Internal Medicine (MD) in Murrieta, California, trained at University of California, Irvine, California College of Medicine (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $283,201 for 2,696 claims, against $4,655 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 11 companies reporting payments in 2025, $532.62 in all, mostly food and beverage.

Overview

NPI	1083607295
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Aug 24, 2005
Last updated in NPPES	Aug 6, 2025
Certified by provider	Aug 6, 2025

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	17998	NV
Emergency Medicine	207P00000X	MD00029384	WA
Internal Medicine	207R00000X	MD00029384	WA

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 (CA); Practitioner - Emergency Medicine (NV); Practitioner - Emergency Medicine (SD); Practitioner - Emergency Medicine (WA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	36
Services billed	61 across 17 procedure codes
Paid by Medicare	$4,655

Part D prescriptions in 2024

Prescriptions (claims)	2,696 · 6,919 30-day fills
Patients	402
Total drug cost	$283,201
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Irvine, California College of Medicine
Graduation year	1981
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth