DR. ALEXANDER KUAN CHONG CHANG D.O.
NPI 1336688795
Emergency Medicine in Hattiesburg, MS
About Dr. Alexander Kuan Chong Chang D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER KUAN CHONG CHANG D.O. (NPI 1336688795) is an individual emergency medicine provider in Hattiesburg, Mississippi, licensed in Virginia (0102206912) and active in the NPI registry since February 2017. He is enrolled in Medicare PECOS, is affiliated with Wellmont Bristol Regional Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Alexander Kuan Chong Chang D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
9Medicare enrollment records show Alexander Chang reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Leakesville, MS 39451
- Reassigned Medicare billing, Mississippi enrollment
- 37 clinicians in this Medicare group
Lucedale, MS 39452
- Reassigned Medicare billing, Mississippi enrollment
- 45 clinicians in this Medicare group
Lucedale, MS 39452
- Reassigned Medicare billing, Mississippi enrollment
- 34 clinicians in this Medicare group
Kosciusko, MS 39090
- Reassigned Medicare billing, Mississippi enrollment
- 46 clinicians in this Medicare group
Johnson City, TN 37604
- Reassigned Medicare billing, Tennessee enrollment
- 67 clinicians in this Medicare group
Johnson City, TN 37604
- Reassigned Medicare billing, Tennessee enrollment
- 284 clinicians in this Medicare group
Norton, VA 24273
- Reassigned Medicare billing, Virginia enrollment
- 207 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Tennessee enrollment
- 1,071 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, Virginia enrollment
- 158 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wellmont Bristol Regional Medical Center
Acute Care Hospitals · Bristol, TNWellmont Holston Valley Medical Center
Acute Care Hospitals · Kingsport, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HATTIESBURG, MS 39402
HATTIESBURG, MS 39402
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alexander Chang's NPI number?
The NPI number for Alexander Chang is 1336688795. It was assigned to this individual provider in the NPPES registry on February 17, 2017. The provider is also known as Dr. Alexander Kuan Chong Chang D.O..
Where is Alexander Chang located?
Alexander Chang practices at 5001 Hardy St, Hattiesburg, MS 39402. The listed phone number is (601) 268-8000.
What is Alexander Chang's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alexander Chang enrolled in Medicare?
Yes. Alexander Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alexander Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Chang reassigns Medicare benefits to 9 organizations: Greene County Family Medical Clinic (Leakesville, MS), Community Medical Center (Lucedale, MS), George Regional ER Physicians (Lucedale, MS), Attala Emergency Group LLC (Kosciusko, MS), Tri-Cities Observation Services, PC (Johnson City, TN) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Chang accept?
Health plans from Oscar Health and Oscar Insurance Company list Alexander Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexander Chang affiliated with any hospitals?
According to CMS data, Alexander Chang is affiliated with Wellmont Bristol Regional Medical Center and Wellmont Holston Valley Medical Center.
When was this NPI record last updated?
The NPPES record for Alexander Chang was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Alexander Kuan Chong Chang, D.O. · NPI 1336688795
Emergency Medicine physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since February 17, 2017.
## Identity
- **NPI:** 1336688795 (Entity type: Individual)
- **Enumerated:** February 17, 2017
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 0102206912 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5001 HARDY ST, Hattiesburg, MS 39402-1308
- **Phone:** (601) 268-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Greene County Family Medical Clinic (NPI 1689821126, Leakesville, MS); Community Medical Center (NPI 1194734913, Lucedale, MS); George Regional ER Physicians (NPI 1043690936, Lucedale, MS); Attala Emergency Group LLC (NPI 1407103294, Kosciusko, MS); Tri-Cities Observation Services, PC (NPI 1154860146, Johnson City, TN); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Touro Un Col Of Osteopathic Medicine, New York, class of 2017
## Record status
- **NPPES last updated:** August 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1336688795) · Data from the CMS NPPES public registry.