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Alexander Kuan Chong Chang, D.O.

NPI 1336688795ActiveIndividual· Emergency Medicine· Hattiesburg, MS

Emergency Medicine (D.O.) in Hattiesburg, Mississippi, trained at Touro Un Col of Osteopathic Medicine, New York (class of 2017). 498 Medicare patients in 2024, $66,317 paid; nearly all of their 928 Part D prescriptions were generic (94%). Stryker Corporation was the largest of 2 companies reporting payments in 2025, $65.08 in all, mostly food and beverage.

Overview

NPI1336688795
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedFeb 17, 2017
Last updated in NPPESAug 27, 2026
Certified by providerAug 27, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Emergency Medicine Primary207P00000X0102206912VA
Emergency Medicine207P00000X4386TN
Emergency Medicine207P00000X26927MS

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 - Emergency Medicine (MS); Practitioner - Emergency Medicine (TN); Practitioner - Emergency Medicine (VA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients498
Services billed871 across 17 procedure codes
Paid by Medicare$66,317

Part D prescriptions in 2024

Prescriptions (claims)928 · 931 30-day fills
Patients450
Total drug cost$12,549
Generic share94% of claims

Medicare sources and data years

Education and affiliations

Medical schoolTouro Un Col of Osteopathic Medicine, New York
Graduation year2017
Medicare specialtyEmergency Medicine

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$65.08 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Stryker Corporation$45.661
Fidia Pharma USA Inc.$19.421

What the 2025 payments were for

  • Food and Beverage$65.08 · 2 payments

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

Other Emergency Medicine providers in Hattiesburg

All Emergency Medicine providers in Mississippi →