Quick answers
- Where does Mariah A. Simms see patients?
- Medicare's clinician data lists 2 practice locations, including Austin, TX. Call before your visit to confirm the address.
- What is Mariah A. Simms's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mariah A. Simms accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah A. Simms 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 Mariah A. Simms?
- (512) 994-2662, as listed in official Medicare / NPI Registry data.
- What is Mariah A. Simms's NPI number?
- 1235829391. 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 Mariah A. Simms is enrolled with Medicare (CMS data updated 2026-10-02).
- 12201 Renfert Way, 250 Austin Regional Clinic North Austin Ob/Austin, TX 78758 (512) 994‑2662
- 6835 Austin Ctr BlvdAustin, TX 78731 (512) 346‑6611
Group practices
Medicare enrollment lists Mariah A. Simms as a member of this group (CMS data updated 2026-10-02).
- Austin Regional Clinic PA397 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235829391 |
| 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