DR. THOMAS SPENTZAS MD
NPI 1881652543
Pediatrics - Pediatric Critical Care Medicine in Houston, TX
About Dr. Thomas Spentzas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS SPENTZAS MD (NPI 1881652543) is an individual pediatric critical care medicine provider in Houston, Texas, licensed in Texas (W1509) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1983).
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
Dr. Thomas Spentzas Md 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
2Medicare enrollment records show Thomas Spentzas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 3,111 clinicians in this Medicare group
Memphis, TN 38103
- Reassigned Medicare billing, Tennessee enrollment
- 582 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.
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.
HOUSTON, TX 77030
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 Thomas Spentzas's NPI number?
The NPI number for Thomas Spentzas is 1881652543. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is Thomas Spentzas located?
Thomas Spentzas practices at 6411 Fannin St, Houston, TX 77030. The listed phone number is (901) 734-5969.
What is Thomas Spentzas's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Thomas Spentzas enrolled in Medicare?
Yes. Thomas Spentzas 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 Thomas Spentzas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Spentzas reassigns Medicare benefits to 2 organizations: Ut Physicians (Houston, TX) and Ut Lebonheur Pediatric Specialists, Inc. (Memphis, TN). 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 Thomas Spentzas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Spentzas accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Thomas Spentzas 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 Thomas Spentzas was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Thomas Spentzas, MD · NPI 1881652543
Pediatric Critical Care Medicine physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since May 3, 2006.
## Identity
- **NPI:** 1881652543 (Entity type: Individual)
- **Enumerated:** May 3, 2006
- **Primary specialty:** Pediatrics - Pediatric Critical Care Medicine · taxonomy 2080P0203X
- **State license:** W1509 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6411 FANNIN ST, Houston, TX 77030-1501
- **Phone:** (901) 734-5969
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Ut Physicians (NPI 1033157821, Houston, TX); Ut Lebonheur Pediatric Specialists, Inc. (NPI 1093024101, Memphis, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881652543) · Data from the CMS NPPES public registry.