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Michael Jay Hersh, MD

NPI 1407076888ActiveIndividual· Internal Medicine, Gastroenterology· Buffalo Grove, IL

Internal Medicine, Gastroenterology (MD) in Buffalo Grove, Illinois, trained at State University of New York at Stony Brook, School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $501,950 for 1,612 claims, against $126,053 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $271.83 in all, mostly food and beverage.

Overview

NPI1407076888
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 26, 2007
Last updated in NPPESOct 5, 2021
Certified by providerOct 5, 2021

Specialties and licenses

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 - Gastroenterology (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients539
Services billed1,228 across 38 procedure codes
Paid by Medicare$126,053

Part D prescriptions in 2024

Prescriptions (claims)1,612 · 3,417 30-day fills
Patients532
Total drug cost$501,950
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolState University of New York at Stony Brook, School of Medicine
Graduation year2003
Medicare specialtyGastroenterology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$271.83 · 12 payments from 2 companies
  • 2024$216.15 · 6 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$245.4411
Aimmune Therapeutics, Inc.$26.391

What the 2025 payments were for

  • Food and Beverage$271.83 · 12 payments

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

Other gastroenterologists in Buffalo Grove

All gastroenterologists in Illinois