Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Alexander K Chang, DO

Individual provider Emergency Medicine Physician · NPI 1336688795

Dr. Alexander K Chang, DO practises Emergency Medicine in Hattiesburg, Mississippi. Graduated from Touro Un Col of Osteopathic Medicine, New York in 2017, 9 years ago. Practices with Tri-Cities Regional Emergency Physicians, PC, a 118-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Mississippi, Tennessee and Virginia.

Years since qualifying
9
Trained at
Touro Un Col of Osteopathic Medicine, New York
Licensed in
MS, TN, VA
In the registry since
2017
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

5001 Hardy St
Hattiesburg, MS 39402-1308
Phone: (601) 268-8000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 220 Highway 12 W, Kosciusko, MS 39090-3208 — (662) 290-3331
  • 859 Winter St, Lucedale, MS 39452-6603 — (160) 194-7316

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 0102206912 (VA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 26927 (MS)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 4386 (TN)

Record details

NPI number1336688795
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 17, 2017
Last updated in NPPESNovember 17, 2021
Certification dateNovember 17, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolTOURO UN COL OF OSTEOPATHIC MEDICINE, NEW YORK
Graduated 2017 (9 years in practice)
Group practice Tri-Cities Regional Emergency Physicians, Pc — 118 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients498
Services billed 871 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $65 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Wellmont Bristol Regional Medical Center Hospital · Bristol, TN
  • Wellmont Holston Valley Medical Center Hospital · Kingsport, TN

Colleagues at Tri-Cities Regional Emergency Physicians, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 118 clinicians in the practice; 12 are shown here.

Other providers in Hattiesburg