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William Spencer Lewis, MD

NPI 1871585059ActiveIndividual· Otolaryngology· Los Gatos, CA

Otolaryngology (MD) in Los Gatos, California, trained at University of Southern California Keck School of Medicine (class of 1986). 731 Medicare patients in 2024, $162,765 paid; nearly all of their 564 Part D prescriptions were generic (95%).

Overview

NPI1871585059
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedAug 16, 2005
Last updated in NPPESApr 29, 2024
Certified by providerApr 29, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Otolaryngology Primary207Y00000XG62557CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Otolaryngology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients731
Services billed2,145 across 38 procedure codes
Paid by Medicare$162,765

Part D prescriptions in 2024

Prescriptions (claims)564 · 1,023 30-day fills
Patients262
Total drug cost$15,368
Generic share95% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Southern California Keck School of Medicine
Graduation year1986
Medicare specialtyOtolaryngology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other otolaryngologists in Los Gatos

All otolaryngologists in California