Alexander Chang, D.O.
NPI 1336688795 · Emergency Medicine Physician · Hattiesburg, MS
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Chang, D.O. is a Emergency Medicine Physician provider in Hattiesburg, MS (NPI 1336688795).
Provider details
- NPI number
- 1336688795
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0102206912 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
840 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 356 | $162 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 316 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 89 | $111 |
| Critical Care, First 30-74 Minutes99291 | 79 | $196 |
Typical Medicare-allowed amounts for these services range $8–$196 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 160 | 160 |
| Methocarbamol | 81 | 81 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 67 | 67 |
| Cephalexin | 56 | 56 |
| Doxycycline Hyclate | 53 | 53 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 48 | 48 |
| Prednisone | 40 |
Practice location
Mailing address
Additional practice locations (2)
- 220 Highway 12 WKosciusko, MS 39090-3208Phone: (662) 290-3331Fax: (662) 290-3399
- 859 Winter StLucedale, MS 39452-6603Phone: (160) 194-7316
Registry dates
- Enumerated
- 2017-02-17
- Last updated
- 2021-11-17
- Certified
- 2021-11-17
Frequently asked questions
- What is Alexander Chang's NPI number?
- Alexander Chang's National Provider Identifier (NPI) is 1336688795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Chang's specialty?
- Alexander Chang is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Chang located?
- Alexander Chang's practice location on file with NPPES is 5001 Hardy St, Hattiesburg, MS 39402-1308.
- What is Alexander Chang's phone number?
- The practice phone number listed in the NPPES registry for Alexander Chang is (601) 268-8000.
- Does Alexander Chang accept Medicare?
- Alexander Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Chang's NPI active?
- Yes — Alexander Chang's NPI (1336688795) is active in the NPPES registry as of the last update on 2021-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.