STEPHEN SIERRA MD
NPI 1295228591
Orthopaedic Surgery - Sports Medicine in Waco, TX
About Stephen Sierra Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN SIERRA MD (NPI 1295228591) is an individual sports medicine provider in Waco, Texas, licensed in Texas (T0136) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Ascension Providence, and maintains a secondary practice location in Lubbock.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Stephen Sierra 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 Stephen Sierra reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Waco, TX 76712
- Reassigned Medicare billing, Texas enrollment
- 176 clinicians in this Medicare group
Seneca, SC 29678
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Prisma Health University Medical Group
- 3,281 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 4
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.
Ascension Providence
Acute Care Hospitals · Waco, TXParkview Regional Hospital
Acute Care Hospitals · Mexia, TXOther Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WACO, TX 76712
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 Stephen Sierra's NPI number?
The NPI number for Stephen Sierra is 1295228591. It was assigned to this individual provider in the NPPES registry on June 11, 2018.
Where is Stephen Sierra located?
Stephen Sierra practices at 7125 New Sanger Ave Ste 516, Waco, TX 76712. The listed phone number is (254) 752-9638.
What is Stephen Sierra's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.
Is Stephen Sierra enrolled in Medicare?
Yes. Stephen Sierra 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 Stephen Sierra's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Sierra reassigns Medicare benefits to 2 organizations: Providence Health Alliance (Waco, TX) and Ghs Partners In Health, Inc. (Seneca, SC). 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 Stephen Sierra's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Sierra 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 2 other insurers list Stephen Sierra 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 Stephen Sierra affiliated with any hospitals?
According to CMS data, Stephen Sierra is affiliated with Ascension Providence and Parkview Regional Hospital.
When was this NPI record last updated?
The NPPES record for Stephen Sierra was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.