NPI Lens

Wai Soon Chan, DO

NPI 1699263582ActiveIndividual· Internal Medicine, Critical Care Medicine· Livingston, NJ

Internal Medicine, Critical Care Medicine (DO) in Livingston, New Jersey, trained at Rowan University School of Osteopathic Medicine (class of 2018). Mostly services rather than prescriptions: Medicare paid $163,487 for 411 patients in 2024, with only 36 Part D claims. Mallinckrodt Hospital Products Inc. was the largest of 5 companies reporting payments in 2025, $246.72 in all, mostly food and beverage.

Overview

NPI1699263582
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedApr 25, 2018
Last updated in NPPESJan 12, 2025
Certified by providerJan 12, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Critical Care Medicine Primary207RC0200X25MB11177700NJ
Emergency Medicine207P00000X25MB11177700NJ

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 - Emergency Medicine (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients411
Services billed1,053 across 21 procedure codes
Paid by Medicare$163,487

Part D prescriptions in 2024

Prescriptions (claims)36 · 44 30-day fills
Patients20
Total drug cost$3,648
Generic share78% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRowan University School of Osteopathic Medicine
Graduation year2018
Medicare specialtyEmergency Medicine

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$246.72 · 6 payments from 5 companies
  • 2024$89.95 · 6 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Mallinckrodt Hospital Products Inc.$105.101
Medtronic, Inc.$69.001
Abbvie Inc.$34.122
Merck Sharp & Dohme LLC$21.461
Shionogi Inc$17.041

What the 2025 payments were for

  • Food and Beverage$246.72 · 6 payments

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

Other critical care physicians in Livingston

All critical care physicians in New Jersey