ION CHUANG
NPI 1821034448
Emergency Medicine in Allen, TX
About Ion Chuang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ION CHUANG (NPI 1821034448) is an individual emergency medicine provider in Allen, Texas, licensed in Texas (Q3346) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
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
Ion Chuang 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
20Medicare enrollment records show Ion Chuang reassigns Medicare billing to 20 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Plano, TX 75075
- Reassigned Medicare billing, Texas enrollment
- 454 clinicians in this Medicare group
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Bonham, TX 75418
- Reassigned Medicare billing, Texas enrollment
- 48 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 154 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 272 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 387 clinicians in this Medicare group
Texarkana, TX 75503
- Reassigned Medicare billing, Texas enrollment
- 128 clinicians in this Medicare group
Spring, TX 77381
- Reassigned Medicare billing, Texas enrollment
- 180 clinicians in this Medicare group
Jasper, TX 75951
- Reassigned Medicare billing, Texas enrollment
- 133 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 3
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.
Christus Good Shepherd Medical Center
Acute Care Hospitals · Longview, TXChristus St Michael Health System
Acute Care Hospitals · Texarkana, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75013 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ion Chuang's NPI number?
The NPI number for Ion Chuang is 1821034448. It was assigned to this individual provider in the NPPES registry on June 21, 2006.
Where is Ion Chuang located?
Ion Chuang practices at 936 Cottontop Trl, Allen, TX 75013. The listed phone number is (856) 906-5116.
What is Ion Chuang's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ion Chuang enrolled in Medicare?
Yes. Ion Chuang 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 Ion Chuang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ion Chuang reassigns Medicare benefits to 20 organizations: Questcare Medical Services PLLC (Plano, TX), Century Integrated Partners, Inc (Dallas, TX), Hospitalist Medicine Physicians Of Texas - Cypress PLLC (Bonham, TX), Acs Primary Care Physicians Southwest, PA (Gainesville, TX), Acute Care Specialists (Longview, TX) and 15 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 Ion Chuang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ion Chuang accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Molina Healthcare, Oscar Health and Oscar Insurance Company list Ion Chuang 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 Ion Chuang affiliated with any hospitals?
According to CMS data, Ion Chuang is affiliated with Christus Good Shepherd Medical Center and Christus St Michael Health System.
When was this NPI record last updated?
The NPPES record for Ion Chuang was last updated on March 7, 2023. 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.
# Ion Chuang · NPI 1821034448
Emergency Medicine physician in Allen, Texas. Individual provider, active in the CMS NPPES registry since June 21, 2006.
## Identity
- **NPI:** 1821034448 (Entity type: Individual)
- **Enumerated:** June 21, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** Q3346 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 936 COTTONTOP TRL, Allen, TX 75013-5569
- **Phone:** (856) 906-5116
## 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:** 20 organizations under Medicare reassignment (form CMS-855R): Questcare Medical Services PLLC (NPI 1164574489, Plano, TX); Century Integrated Partners, Inc (NPI 1447615711, Dallas, TX); Hospitalist Medicine Physicians Of Texas - Cypress PLLC (NPI 1184458838, Bonham, TX); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX); Acute Care Specialists (NPI 1740655273, Longview, TX); and 15 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** March 7, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1821034448) · Data from the CMS NPPES public registry.