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Allen William Cortez, M.D.

NPI 1518916089ActiveIndividual· Surgery· Santa Rosa, CA

Surgery (M.D.) in Santa Rosa, California, trained at University of Michigan Medical School (class of 1991). 300 Medicare patients in 2024, $140,579 paid; nearly all of their 161 Part D prescriptions were generic (97%). Medical Device Business Services, Inc. was the largest of 3 companies reporting payments in 2025, $951.20 in all, mostly travel and lodging.

Overview

NPI1518916089
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 10, 2006
Last updated in NPPESFeb 7, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Surgery Primary208600000XG76718CA
Surgery, Trauma Surgery2086S0127XG76718CA

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 - General Surgery (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients300
Services billed652 across 95 procedure codes
Paid by Medicare$140,579

Part D prescriptions in 2024

Prescriptions (claims)161 · 166 30-day fills
Patients88
Total drug cost$2,619
Generic share97% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Michigan Medical School
Graduation year1991
Medicare specialtyGeneral Surgery
Secondary specialtiesEmergency Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$951.20 · 5 payments from 3 companies
  • 2024$6,265 · 26 payments from 3 companies

Top paying companies in 2025

What the 2025 payments were for

  • Travel and Lodging$736.47 · 1 payment
  • Food and Beverage$214.73 · 4 payments

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

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