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Erik M. Happ, MD

NPI 1861484032ActiveIndividual· Ophthalmology· Mt Pleasant, SC

Ophthalmology (MD) in Mt Pleasant, South Carolina, trained at Hahnemann University College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $1,284,490 for 451 claims, against $80,512 paid for services in 2024. Amgen Inc. was the largest of 6 companies reporting payments in 2025, $7,339 in all, mostly speaking and faculty fees.

Overview

NPI1861484032
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 16, 2005
Last updated in NPPESSep 12, 2024
Certified by providerSep 12, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000X92300SC
Ophthalmology207W00000XMD426282PA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (PA); Practitioner - Ophthalmology (SC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients301
Services billed1,421 across 40 procedure codes
Paid by Medicare$80,512

Part D prescriptions in 2024

Prescriptions (claims)451 · 543 30-day fills
Patients292
Total drug cost$1,284,490
Generic share56% of claims

Medicare sources and data years

Education and affiliations

Medical schoolHahnemann University College of Medicine
Graduation year1997
Medicare specialtyOphthalmology

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$7,339 · 15 payments from 6 companies
  • 2024$23,251 · 38 payments from 6 companies

Top paying companies in 2025

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$6,038 · 2 payments
  • Travel and Lodging$858.22 · 2 payments
  • Food and Beverage$443.40 · 11 payments

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

Other Ophthalmology providers in Mt Pleasant

All Ophthalmology providers in South Carolina →