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Katherine L. Hermayer, MD

NPI 1295843233ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Charleston, SC

Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Charleston, South Carolina, trained at Albany Medical College of Union University (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $744,336 for 1,960 claims, against $50,026 paid for services in 2024. Insulet Corporation was the largest of 3 companies reporting payments in 2025, $314.67 in all, mostly food and beverage.

Overview

NPI1295843233
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 29, 2006
Last updated in NPPESOct 22, 2020
Certified by providerOct 22, 2020

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 - Endocrinology (SC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients287
Services billed871 across 15 procedure codes
Paid by Medicare$50,026

Part D prescriptions in 2024

Prescriptions (claims)1,960 · 4,115 30-day fills
Patients207
Total drug cost$744,336
Generic share43% of claims

Medicare sources and data years

Education and affiliations

Medical schoolAlbany Medical College of Union University
Graduation year1981
Medicare specialtyEndocrinology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$314.67 · 3 payments from 3 companies
  • 2024$155.54 · 1 payment from 1 company

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$290.63 · 2 payments
  • Education$24.04 · 1 payment

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

Other endocrinologists in Charleston

All 33 endocrinologists in Charleston · All endocrinologists in South Carolina