Quick answers
- Which hospitals does Stephen Sierra work at?
- Medicare's official clinician data lists Stephen Sierra at 2 hospitals: Ascension Providence and Parkview Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen Sierra see patients?
- Medicare's clinician data lists 3 practice locations, including Waco, TX. Call before your visit to confirm the address.
- What is Stephen Sierra's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty, and also Sports Medicine.
- Does Stephen Sierra accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen Sierra accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Stephen Sierra?
- (254) 537-6200, as listed in official Medicare / NPI Registry data.
- What is Stephen Sierra's NPI number?
- 1295228591. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen Sierra works
Medicare's Facility Affiliation Data lists Stephen Sierra at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension ProvidenceWaco, TX · Acute Care Hospital · CCN 450042
- Parkview Regional HospitalMexia, TX · Acute Care Hospital · CCN 450400
Practice locations
Addresses where Stephen Sierra is enrolled with Medicare (CMS data updated 2026-10-02).
- 301 Richland W Cir, Providence Internal Medicine ClinicWaco, TX 76712 (254) 537‑6200
- 6901 Medical PkwyWaco, TX 76712 (254) 751‑4000
- 7125 Sanger Rd, Suite 516Waco, TX 76712 (254) 752‑9638
Group practices
Medicare enrollment lists Stephen Sierra as a member of this group (CMS data updated 2026-10-02).
- Providence Health Alliance118 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
- Sports Medicinealso
Other orthopedic surgeons in Waco
Clinicians with the same Medicare primary specialty in Waco, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295228591 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians