Rainier A. Manzanilla, M.D.

NPI 1316026974ActiveIndividual· Internal Medicine, Interventional Cardiology· Los Angeles, CA

Internal Medicine, Interventional Cardiology (M.D.) in Los Angeles, California, trained at University of California, Irvine, California College of Medicine (class of 1986). In 2024 Medicare paid $48,200 for 135 patients, and Part D covered 181 of their prescriptions, 75% of them generic. Boston Scientific Corporation was the largest of 3 companies reporting payments in 2025, $206.76 in all, mostly food and beverage.

Overview

NPI	1316026974
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Nov 3, 2006
Last updated in NPPES	Oct 4, 2012

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Interventional Cardiology Primary	207RI0011X	G61710	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 Cardiology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	135
Services billed	458 across 10 procedure codes
Paid by Medicare	$48,200

Part D prescriptions in 2024

Prescriptions (claims)	181 · 330 30-day fills
Patients	18
Total drug cost	$25,550
Generic share	75% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Irvine, California College of Medicine
Graduation year	1986
Medicare specialty	Interventional Cardiology
Secondary specialties	Cardiovascular Disease (Cardiology)