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Mark Alan Zaydman, MD

NPI 1588017842ActiveIndividual· Pathology, Clinical Pathology· Saint Louis, MO

Pathology, Clinical Pathology (MD) in Saint Louis, Missouri, trained at Washington University School of Medicine (class of 2016). Medicare paid $20,038 for services to 723 patients in 2024.

Overview

NPI1588017842
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 21, 2016
Last updated in NPPESApr 17, 2025
Certified by providerNov 23, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Pathology, Clinical Pathology Primary207ZC0006X2021030731MO

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 - Pathology (IL); Practitioner - Pathology (MO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients723
Services billed1,638 across 4 procedure codes
Paid by Medicare$20,038

Medicare sources and data years

Education and affiliations

Medical schoolWashington University School of Medicine
Graduation year2016
Medicare specialtyPathology

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 Pathology, Clinical Pathology providers in Saint Louis

All 18 Pathology, Clinical Pathology providers in Saint Louis · All Pathology, Clinical Pathology providers in Missouri