WILLIAM T TSAI MD
NPI 1568480796
Emergency Medicine - Pediatric Emergency Medicine in Charlotte, NC
About William T Tsai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM T TSAI MD (NPI 1568480796) is an individual pediatric emergency medicine provider in Charlotte, North Carolina and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 6
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William T Tsai Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Tsai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80204
- Reassigned Medicare billing, Colorado enrollment
- 2,259 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 28203 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.
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
CHARLOTTE, NC 28203
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 Tsai's NPI number?
The NPI number for William Tsai is 1568480796. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is William Tsai located?
William Tsai practices at 1000 Blythe Blvd, Charlotte, NC 28203. The listed phone number is (704) 355-3181.
What is William Tsai's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Pediatric Emergency Medicine, with taxonomy code 207PP0204X.
Is William Tsai enrolled in Medicare?
Yes. William Tsai is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Tsai reassigns Medicare benefits to Denver Health And Hospital Authority (Denver, CO). The 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 Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Tsai was last updated on December 6, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# William T Tsai, MD · NPI 1568480796
Pediatric Emergency Medicine physician in Charlotte, North Carolina. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1568480796 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Emergency Medicine - Pediatric Emergency Medicine · taxonomy 207PP0204X
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 BLYTHE BLVD, Charlotte, NC 28203-5812
- **Phone:** (704) 355-3181
## 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:** Denver Health And Hospital Authority (NPI 1477569838, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 6, 2007
- **Other identifiers:** Other 142KH (NC); Medicaid 5903928 (NC); Medicare PIN 2058238A (NC); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1568480796) · Data from the CMS NPPES public registry.