Doctor profile · Federal record

Dr. Alexander Chang, D.O.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Hattiesburg, MS

  • NPI 1336688795
  • Accepts Medicare
  • 9 yrs in practice
  • Licensed in 3 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
5001 Hardy St
Hattiesburg, MS 394021308
(601) 268-8000
Additional location
220 Highway 12 W
Kosciusko, MS 390903208
(662) 290-3331
fax (662) 290-3399
Additional location
859 Winter St
Lucedale, MS 394526603
(160) 194-7316
Mailing address
200 Corporate Blvd
Lafayette, LA 705083870

Credentials & registration

NPPES · NUCC
NPI registered
February 2017 — 9 yrs on file
Profile last updated
November 17, 2021
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (3)
Virginia #0102206912 · Mississippi #26927 · Tennessee #4386

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336688795. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
872
Distinct HCPCS
4
Medicare allowed
$90,029
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 345 336 $167
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 338 318 $8
99284 Emergency department visit with moderate level of medical decision making 96 95 $115
99291 Critical care, first 30-74 minutes 93 91 $202

In context: peer comparison

Among 16 peers in this city , average services per provider: 157. This provider delivers 5.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
639
Patients
633
Total drug cost
$7,364
Drug Type Claims Patients Total cost
Ondansetron Hcl Generic 141 141 $555
Cephalexin Generic 78 78 $645
Methocarbamol Generic 67 67 $312
Doxycycline Hyclate Generic 54 51 $617
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 51 51 $184
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 44 41 $950
Naloxone Hcl Generic 35 35 $2,874
Prednisone Generic 27 27 $63
Dicyclomine Hcl Generic 26 26 $104
Ketorolac Tromethamine Generic 25 25 $536

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Chang's medical specialty?
Dr. Alexander Chang practices Emergency Medicine Physician in Hattiesburg, MS.
Where does Dr. Alexander Chang practice?
Dr. Alexander Chang practices at 5001 Hardy St, Hattiesburg, MS 394021308. Office phone: 6012688000.
What is Dr. Alexander Chang's NPI?
Dr. Alexander Chang's National Provider Identifier (NPI) is 1336688795, issued by NPPES.
Does Dr. Alexander Chang accept Medicare assignment?
Yes. Dr. Alexander Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Chang commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.