Quick answers
- Which hospitals does Mari Van Der Walt work at?
- Medicare's official clinician data lists Mari Van Der Walt at 1 hospital: UTMB Health League City Campus Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mari Van Der Walt see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and Webster, TX. Call before your visit to confirm the address.
- What is Mari Van Der Walt's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mari Van Der Walt accept Medicare assignment?
- Medicare's clinician data says Mari Van Der Walt may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Mari Van Der Walt?
- (281) 332-3001, as listed in official Medicare / NPI Registry data.
- What is Mari Van Der Walt's NPI number?
- 1932075504. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mari Van Der Walt works
Medicare's Facility Affiliation Data lists Mari Van Der Walt at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UTMB Health League City Campus HospitalLeague City, TX · Acute Care Hospital · CCN 450018
Practice locations
Addresses where Mari Van Der Walt is enrolled with Medicare (CMS data updated 2026-10-02).
- 18333 Egret Bay Blvd, Suite 140Houston, TX 77058 (281) 332‑3001
- 200 Blossom StWebster, TX 77598 (281) 332‑3001
Group practices
Medicare enrollment lists Mari Van Der Walt as a member of this group (CMS data updated 2026-10-02).
- Xpertmd39 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1932075504 |
| 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