ALEXANDER TIU, MD, PA
NPI 1083678882
Specialist in Humble, TX
About Alexander Tiu, Md, Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER TIU, MD, PA (NPI 1083678882) is a healthcare organization registered as a specialist in Humble, Texas and active in the NPI registry since April 2006. The organization lists Alexander Tiu, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alexander Tiu, Md, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Alexander Tiu, MD, PA, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Tiu, MD, PA's NPI number?
The NPI number for Alexander Tiu, MD, PA is 1083678882. It was assigned to this organization in the NPPES registry on April 17, 2006.
Where is Alexander Tiu, MD, PA located?
Alexander Tiu, MD, PA is located at 19411 Mckay Dr Ste 250, Humble, TX 77338. The listed phone number is (832) 777-6921.
What is Alexander Tiu, MD, PA's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Alexander Tiu, MD, PA enrolled in Medicare?
Yes. Alexander Tiu, MD, PA is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Alexander Tiu, MD, PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pulmonary Disease) reassigns their Medicare billing to Alexander Tiu, MD, PA. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Alexander Tiu, MD, PA was last updated on January 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Alexander Tiu, Md, Pa · NPI 1083678882
Specialist organization in Humble, Texas. Organization record, active in the CMS NPPES registry since April 17, 2006.
## Identity
- **NPI:** 1083678882 (Entity type: Organization)
- **Enumerated:** April 17, 2006
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Alexander Tiu, OWNER
## Practice location
- **Address:** 19411 MCKAY DR STE 250, Humble, TX 77338-5713
- **Phone:** (832) 777-6921 · **Fax:** (281) 359-6847
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Pulmonary Disease) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 10, 2019
- **Other identifiers:** Medicaid 156862801 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1083678882) · Data from the CMS NPPES public registry.