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William Fazzalaro, PA-C

NPI 1912065228ActiveIndividual· Physician Assistant, Surgical· Laguna Hills, CA

Physician Assistant, Surgical (PA-C) with Memorialcare Medical Foundation, practicing in Laguna Hills, California. 107 Medicare patients in 2024, $14,925 paid; nearly all of their 128 Part D prescriptions were generic (98%). Intuitive Surgical, Inc. was the largest of 7 companies reporting payments in 2025, $2,987 in all, mostly education. Lists Memorialcare Saddleback Medical Center as a hospital affiliation.

Overview

NPI1912065228
StatusActive
Entity typeIndividual
CredentialPA-C
Sole proprietorNo
NPI issuedDec 6, 2006
Last updated in NPPESFeb 26, 2025
Certified by providerFeb 26, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant, Surgical Primary363AS0400XPA16754CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Physician Assistant (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients107
Services billed175 across 37 procedure codes
Paid by Medicare$14,925

Part D prescriptions in 2024

Prescriptions (claims)128 · 137 30-day fills
Patients55
Total drug cost$2,294
Generic share98% of claims

Medicare sources and data years

Education and affiliations

Graduation year1999
Medicare specialtyPhysician Assistant

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,987 · 18 payments from 7 companies
  • 2024$438.38 · 5 payments from 5 companies

Top paying companies in 2025

What the 2025 payments were for

  • Education$1,375 · 1 payment
  • Travel and Lodging$1,134 · 4 payments
  • Food and Beverage$477.76 · 13 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Physician Assistant, Surgical providers in Laguna Hills

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