DR. WILLIAM J HWANG MD
NPI 1093714172
Psychiatry & Neurology - Neurology in Killeen, TX
About Dr. William J Hwang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM J HWANG MD (NPI 1093714172) is an individual neurology provider in Killeen, Texas, licensed in Texas (J0839) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Dallas.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. William J Hwang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show William Hwang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denton, TX 76210
- Reassigned Medicare billing, Texas enrollment
- 3 clinicians in this Medicare group
Greenwood Vlg, CO 80111
- Reassigned Medicare billing, Texas enrollment
- 71 clinicians in this Medicare group
Bismarck, ND 58501
- Reassigned Medicare billing, North Dakota enrollment
- 616 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 76549 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.
KILLEEN, TX 76549
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 William Hwang's NPI number?
The NPI number for William Hwang is 1093714172. It was assigned to this individual provider in the NPPES registry on July 20, 2005. The provider is also known as Dr. William James Hwang MD.
Where is William Hwang located?
William Hwang practices at 2405 Clear Creek Rd, Killeen, TX 76549. The listed phone number is (254) 245-9045.
What is William Hwang's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is William Hwang enrolled in Medicare?
Yes. William Hwang is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Hwang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Hwang reassigns Medicare benefits to 3 organizations: Restore Brain, PLLC (Denton, TX), Carepoint Inpatient Blue Sky Neurology - Texas, PLLC (Greenwood Vlg, CO) and St. Alexius Medical Center (Bismarck, ND). 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 William Hwang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Hwang accept?
Health plans from Blue Cross and Blue Shield of Texas list William Hwang 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.
When was this NPI record last updated?
The NPPES record for William Hwang was last updated on December 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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. William J Hwang, MD · NPI 1093714172
Neurology physician in Killeen, Texas. Individual provider, active in the CMS NPPES registry since July 20, 2005.
## Identity
- **NPI:** 1093714172 (Entity type: Individual)
- **Enumerated:** July 20, 2005
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** J0839 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2405 CLEAR CREEK RD, Killeen, TX 76549-5775
- **Phone:** (254) 245-9045
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Restore Brain, PLLC (NPI 1154839470, Denton, TX); Carepoint Inpatient Blue Sky Neurology - Texas, PLLC (NPI 1952908725, Greenwood Vlg, CO); St. Alexius Medical Center (NPI 1629121074, Bismarck, ND) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 13, 2022
- **Other identifiers:** Medicaid 105622803 (TX); Medicaid 200936910A (OK); Other 1H7411 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1093714172) · Data from the CMS NPPES public registry.