DR. THOMAS MIERAS MD
NPI 1578564787
Internal Medicine in San Antonio, TX
About Dr. Thomas Mieras Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS MIERAS MD (NPI 1578564787) is an individual internal medicine provider in San Antonio, Texas, licensed in Texas (H4555) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At San Antonio (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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 Mieras 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 Reassignment
Medicare enrollment records show Thomas Mieras reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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 8
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 15
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78229
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 Mieras's NPI number?
The NPI number for Thomas Mieras is 1578564787. It was assigned to this individual provider in the NPPES registry on August 10, 2005.
Where is Thomas Mieras located?
Thomas Mieras practices at 2829 Babcock Rd Ste 500, San Antonio, TX 78229. The listed phone number is (210) 705-5600.
What is Thomas Mieras's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Thomas Mieras enrolled in Medicare?
Yes. Thomas Mieras 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 organization bills Medicare for Thomas Mieras's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Mieras reassigns Medicare benefits to Christus Trinity Clinic Texas (Tyler, TX). 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 Thomas Mieras's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Mieras accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Community First list Thomas Mieras 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 Mieras was last updated on February 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.