Marylou Vergara Williams, NP
Family Nurse Practitioner · Henderson, NV
Marylou Vergara Williams, NP is a family nurse practitioner with a practice address in Henderson, Nevada, and NPI 1548800360, issued on Jan 9, 2020. Check the license (Nevada 823744, as entered in NPPES) with the Nevada board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marylou Vergara Williams
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 823744 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1701 N Green Valley Pkwy Ste 7B, Henderson, NV 89074
- Phone
- (702) 508-9119
- Enumerated
- Jan 9, 2020
- Record last updated
- Feb 28, 2026
- Fax
- (702) 551-6255
- Medicare enrollment
- Enrolled (PECOS I20200207001978); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,165 in Nevada → Look up another NPI →
Also registered at 1701 N Green Valley Pkwy Ste 7B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Courtney McDermott, PA-CPhysician Assistant1235771197
Verify Marylou Vergara Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Nevada board licenses this profession
Search for license 823744Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,740 Medicare Part D claims for 228 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 77 claims were for opioids.
Most prescribed
- Atorvastatin Calcium111 claims
- Prednisone103 claims
- Amlodipine Besylate92 claims
- Albuterol Sulfate Hfa87 claims
- Buspirone Hcl80 claims
- Azithromycin79 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Apeksha Desai MD PLLCHenderson, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marylou Vergara Williams among 2,165 family nurse practitioner records in Nevada
Marylou Vergara Williams, NP is one of 2,165 family nurse practitioner records with a practice address in Nevada. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 47% of them.
- NPI issued2020 · 47% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2019 · median 2020 among the 1,328 with a school on file
- Record last updated2026 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
255 family nurse practitioner records list a practice address in Henderson
They are 255 of the 7,490 NPPES records with a practice address in Henderson, and 2,165 family nurse practitioner records in Nevada.
All 2,165 in Nevada → Every provider in Henderson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Izuchukwu Atueyi, FNP-CHenderson, NV 890741225424831
- Brendon Bicol, APRN NP-CHenderson, NV 890741194147314
- Teodora Del Pilar, APRNHenderson, NV 890741992195523
- Judith Leonzitta Flores, APRNHenderson, NV 890741306267398
- Ivana Fukumoto, NP-CHenderson, NV 890741114234630
- Caprice Hutchison, NP-CHenderson, NV 890741528280666
- Grant Jenkins, CRNPHenderson, NV 890741487107355
- Diana Kirby, FNP-BCHenderson, NV 890741629188826
Common questions
What is Marylou Vergara Williams, NP's NPI number?
Marylou Vergara Williams, NP's National Provider Identifier (NPI) is 1548800360, issued on Jan 9, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marylou Vergara Williams, NP located?
The NPPES record lists a practice address at 1701 N Green Valley Pkwy Ste 7B, Henderson, NV, 89074. Phone: (702) 508-9119. Providers update this record themselves, so call before visiting.
How can I verify Marylou Vergara Williams, NP's license?
NPPES lists Nevada license number 823744, as entered by the provider. Search the Nevada board that licenses this profession; the NPPES record confirms identity only.
How much does Marylou Vergara Williams, NP prescribe under Medicare Part D?
In 2024, Marylou Vergara Williams, NP had 2,740 Medicare Part D claims for 228 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.