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Mark Joseph Siegel, M.D.

NPI 1437536463ActiveIndividual· Dermatology· Charleston, SC

Dermatology (M.D.) in Charleston, South Carolina, trained at Univ of Central Florida, College of Medicine (class of 2015). 297 Medicare patients in 2024, $87,139 paid; nearly all of their 322 Part D prescriptions were generic (95%). Arcutis Biotherapeutics, Inc. was the largest of 17 companies reporting payments in 2025, $87,359 in all, mostly consulting fees.

Overview

NPI1437536463
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedApr 28, 2015
Last updated in NPPESAug 12, 2025
Certified by providerAug 12, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Dermatology Primary207N00000X38050SC

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 - Dermatology (SC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients297
Services billed1,962 across 67 procedure codes
Paid by Medicare$87,139

Part D prescriptions in 2024

Prescriptions (claims)322 · 339 30-day fills
Patients138
Total drug cost$85,874
Generic share95% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniv of Central Florida, College of Medicine
Graduation year2015
Medicare specialtyDermatology
Secondary specialtiesPediatric Medicine

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$87,359 · 161 payments from 17 companies
  • 2024$25,070 · 119 payments from 25 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$40,461 · 11 payments
  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$29,254 · 8 payments
  • Travel and Lodging$12,229 · 30 payments
  • Food and Beverage$5,415 · 112 payments

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

Other dermatologists in Charleston

All 72 dermatologists in Charleston · All dermatologists in South Carolina