Isaac Wiener, MD

NPI 1427041078ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Los Angeles, CA

Internal Medicine, Clinical Cardiac Electrophysiology (MD) in Los Angeles, California, trained at Harvard Medical School (class of 1974). In 2024 Medicare paid $559,638 for 807 patients, and Part D covered 2,837 of their prescriptions, 74% of them generic. Amgen Inc. was the largest of 3 companies reporting payments in 2025, $112.10 in all, mostly food and beverage.

Overview

NPI	1427041078
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Aug 30, 2005
Last updated in NPPES	Aug 12, 2022
Certified by provider	Aug 12, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Clinical Cardiac Electrophysiology Primary	207RC0001X	G46722	CA
Internal Medicine, Cardiovascular Disease	207RC0000X	G46722	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 - Cardiac Electrophysiology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	807
Services billed	6,843 across 58 procedure codes
Paid by Medicare	$559,638

Part D prescriptions in 2024

Prescriptions (claims)	2,837 · 6,438 30-day fills
Patients	372
Total drug cost	$691,833
Generic share	74% of claims

Medicare sources and data years

Education and affiliations

Medical school	Harvard Medical School
Graduation year	1974
Medicare specialty	Cardiac Electrophysiology
Secondary specialties	Cardiovascular Disease (Cardiology)
Telehealth	Offers telehealth