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Mark Jeffrey Kowalcyk, CRNA

NPI 1427598119ActiveIndividual· Nurse Anesthetist, Certified Registered· Hobe Sound, FL

Nurse Anesthetist, Certified Registered (CRNA) with Mak Anesthesia Holdings, LLC and 1 other group, practicing in Hobe Sound, Florida. Medicare paid $9,203 for services to 99 patients in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $65.23 in all, mostly food and beverage. Lists Jupiter Medical Center and 1 other hospital as hospital affiliations.

Overview

NPI1427598119
StatusActive
Entity typeIndividual
CredentialCRNA
Sole proprietorNo
NPI issuedMar 1, 2017
Last updated in NPPESApr 30, 2026
Certified by providerApr 30, 2026

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 - Certified Registered Nurse Anesthetist (CRNA) (FL); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (GA); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (NC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients99
Services billed101 across 26 procedure codes
Paid by Medicare$9,203

Medicare sources and data years

Education and affiliations

Graduation year2008
Medicare specialtyCertified Registered Nurse Anesthetist (Crna)

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$65.23 · 3 payments from 2 companies
  • 2024$113.84 · 5 payments from 2 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$65.23 · 3 payments

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