Stephen J. Wrenn, MD

NPI 1144555194ActiveIndividual· Radiology, Diagnostic Radiology· Oakland, CA

Radiology, Diagnostic Radiology (MD) in Oakland, California, trained at Stanford University School of Medicine (class of 2008). Mostly services rather than prescriptions: Medicare paid $7,617 for 114 patients in 2024, with only 34 Part D claims. Boston Scientific Corporation reported $193.47 in payments in 2025, mostly food and beverage.

Overview

NPI	1144555194
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Oct 8, 2009
Last updated in NPPES	Dec 15, 2021

Specialties and licenses

Taxonomy	Code	License	State
Radiology, Diagnostic Radiology Primary	2085R0202X	A110249	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 - Interventional Radiology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	114
Services billed	162 across 58 procedure codes
Paid by Medicare	$7,617

Part D prescriptions in 2024

Prescriptions (claims)	34 · 58 30-day fills
Patients	22
Total drug cost	$479.58
Generic share	94% of claims

Medicare sources and data years

Education and affiliations

Medical school	Stanford University School of Medicine
Graduation year	2008
Medicare specialty	Interventional Radiology
Secondary specialties	Diagnostic Radiology