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MARYLOU VERGARA WILLIAMS NP
NPI 1548800360
Nurse Practitioner - Family in Henderson, NV

Active since January 09, 2020PECOS EnrolledAccepts Medicare Assignment
1701 N GREEN VALLEY PKWY STE 7B, HENDERSON, NV 89074(702) 508-9119(702) 551-6255 Get Directions Write a Review

NPPES record last updated: February 28, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 1, 2022, Mar 24, 2021, Jul 8, 2020 and 1 more (4 updates tracked since 2020).

About Marylou Vergara Williams Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARYLOU VERGARA WILLIAMS NP (NPI 1548800360) is an individual family provider in Henderson, Nevada, licensed in Nevada (823744) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1548800360
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARYLOU VERGARA WILLIAMSCredential: NP
Location Address1701 N GREEN VALLEY PKWY STE 7BHenderson, NV 89074-5889
Mailing AddressPo Box 80895Las Vegas, NV 89180-0895 · (702) 508-9119 · Fax (702) 551-6255
Phone(702) 508-9119
Fax(702) 551-6255
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJanuary 9, 2020
Last NPPES UpdateFebruary 28, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 28, 2026
✔ NPI 1548800360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NV · 823744
Also ListedNurse PractitionerTaxonomy 363L00000X · License 823744 (NV)
1701 N GREEN VALLEY PKWY STE 7B, Henderson, NV 89074
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marylou Vergara Williams Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032545181
PECOS Enrollment IDI20200207001978
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89074 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.51 typical visit price
range $57.07 – $173.24
Typical copayment $22.12 (range $14.26 – $43.31)
Most-billed visit code 99203
Established Patient
$100.60 typical visit price
range $18.27 – $140.96
Typical copayment $25.15 (range $4.56 – $35.24)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers16 claims16 services$15.12 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers55 claims55 services$4.37 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers16 claims16 services$67.80 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH THERESE COFFMAN PA-C
Physician Assistant (Medical)
1701 N GREEN VALLEY PKWY STE 7B
HENDERSON, NV 89074
Clark County (702) 508-9119
COURTNEY RAE MCDERMOTT PA-C
Physician Assistant
1701 N GREEN VALLEY PKWY STE 7B
HENDERSON, NV 89074
Clark County (702) 508-9119
APEKSHA DESAI MD PLLC
Internal Medicine
1701 N GREEN VALLEY PKWY STE 7B
HENDERSON, NV 89074
Clark County (702) 508-9119
MORGAN AUBREY BUSH
Physician Assistant
1701 N GREEN VALLEY PKWY STE 7B
HENDERSON, NV 89074
Clark County (702) 508-9119

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marylou Williams's NPI number?

The NPI number for Marylou Williams is 1548800360. It was assigned to this individual provider in the NPPES registry on January 9, 2020.

Where is Marylou Williams located?

Marylou Williams practices at 1701 N Green Valley Pkwy Ste 7B, Henderson, NV 89074. The listed phone number is (702) 508-9119.

What is Marylou Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marylou Williams enrolled in Medicare?

Yes. Marylou Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Marylou Williams was last updated on February 28, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.