Quick answers
- Does Marylou V. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Marylou V. Williams accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Marylou V. Williams's NPI number?
- 1548800360. 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 Marylou V. Williams is enrolled with Medicare (CMS data updated October 2, 2026).
- 1701 N Green Valley Pkwy, Suite 7bHenderson, NV 89074 (702) 508‑9119
- 229 N Pecos Rd, Suite 120Henderson, NV 89074 (702) 629‑7510
- 8630 W Cheyenne AveLas Vegas, NV 89129 (702) 508‑9119
Group practices
Medicare enrollment lists Marylou V. Williams as a member of these groups (CMS data updated October 2, 2026).
- Apeksha Desai MD PLLC7 clinicians in the group
- Las Vegas Kidney and Hypertension Specialists LLC6 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Henderson
Clinicians with the same Medicare primary specialty in Henderson, NV — not a recommendation.
Other clinicians in Apeksha Desai MD PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548800360 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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