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Helen A. Mashek, MD

NPI 1023012515ActiveIndividual· Dermatology· Newark, DE

Dermatology (MD) in Newark, Delaware, trained at Rutgers New Jersey Medical School (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $1,203,541 for 1,095 claims, against $363,392 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $1,884 in all, mostly food and beverage.

Overview

NPI1023012515
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 13, 2005
Last updated in NPPESMay 24, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Dermatology Primary207N00000XC10004790DE

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 - Dermatology (DE)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,779
Services billed14,928 across 66 procedure codes
Paid by Medicare$363,392

Part D prescriptions in 2024

Prescriptions (claims)1,095 · 1,458 30-day fills
Patients422
Total drug cost$1,203,541
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRutgers New Jersey Medical School
Graduation year1990
Medicare specialtyDermatology

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,884 · 82 payments from 18 companies
  • 2024$1,695 · 81 payments from 18 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$403.2520
Novartis Pharmaceuticals Corporation$245.9212
Janssen Biotech, Inc.$203.255
Organon LLC$177.894
Ucb, Inc.$172.408

What the 2025 payments were for

  • Food and Beverage$1,704 · 80 payments
  • Education$179.99 · 2 payments

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

Other Dermatology providers in Newark

All Dermatology providers in Delaware →