Quick answers
- Where does William Terrazas see patients?
- Medicare's clinician data lists 2 practice locations, including Shawnee, OK and Nichols Hills, OK. Call before your visit to confirm the address.
- What is William Terrazas's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does William Terrazas accept Medicare assignment?
- Yes. Medicare's clinician data says William Terrazas 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 William Terrazas?
- (405) 273-2270, as listed in official Medicare / NPI Registry data.
- What is William Terrazas's NPI number?
- 1518618172. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where William Terrazas is enrolled with Medicare (CMS data updated 2026-10-02).
- 1102 W MacarthurShawnee, OK 74804 (405) 273‑2270
- 1121 NW 63rd St, Suite 5001Nichols Hills, OK 73116 (405) 652‑0632
Group practices
Medicare enrollment lists William Terrazas as a member of these groups (CMS data updated 2026-10-02).
- Emergency Physicians of Mid-America PC82 clinicians in the group
- Mercy Oklahoma Ambulatory Services LLC48 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Shawnee
Clinicians with the same Medicare primary specialty in Shawnee, OK — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518618172 |
| 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
- 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