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MARIA MCNEIL WILLIAMS APRN
NPI 1134501117
Nurse Practitioner - Primary Care in Polson, MT

Active since June 25, 2015PECOS EnrolledAccepts Medicare Assignment
50125 US HIGHWAY 93, POLSON, MT 59860(406) 885-8385(205) 273-2430 Get Directions Write a Review

NPPES record last updated: January 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 5, 2026, Aug 12, 2025, Apr 29, 2021 and 1 more (4 updates tracked since 2017).

About Maria Mcneil Williams Aprn NPPES

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

MARIA MCNEIL WILLIAMS APRN (NPI 1134501117) is an individual primary care provider in Polson, Montana, licensed in Montana (100769) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Logan Health - Whitefish, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1134501117
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameMARIA MCNEIL WILLIAMSCredential: APRN
Location Address50125 US HIGHWAY 93Polson, MT 59860-7035
Mailing AddressPo Box 399Polson, MT 59860-0399 · (406) 885-1337 · Fax (205) 273-2430
Phone(406) 885-8385
Fax(205) 273-2430
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJune 25, 2015
Last NPPES UpdateJanuary 5, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 5, 2026
✔ NPI 1134501117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
Licenses✔ Licensed in MT · 100769✔ Licensed in MT · NUR-RN-LIC-36703
50125 US HIGHWAY 93, Polson, MT 59860
Open in Google Maps ↗

Other Names 1

Former Name (1)Maria Catherine Mcneil Aprn

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.Insurance ›

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

Maria Mcneil Williams Aprn 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 ID749596716
PECOS Enrollment IDI20150904002509
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Logan Health - Whitefish

Critical Access Hospitals · Whitefish, MT
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number271336
Location1600 Hospital WayWhitefish, MT 59937 · Flathead County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59860 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
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
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.

Other Providers at the Same Location NPPES

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

ROCKY MOUNTAIN HEALTH AND WELLNESS
Family Medicine (Addiction Medicine)
50125 US HIGHWAY 93
POLSON, MT 59860
Lake County (406) 885-8385

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 Maria Williams's NPI number?

The NPI number for Maria Williams is 1134501117. It was assigned to this individual provider in the NPPES registry on June 25, 2015. The provider is also known as Maria Catherine Mcneil Aprn.

Where is Maria Williams located?

Maria Williams practices at 50125 Us Highway 93, Polson, MT 59860. The listed phone number is (406) 885-8385.

What is Maria Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Maria Williams enrolled in Medicare?

Yes. Maria 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.

What insurance does Maria Williams accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Maria Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Maria Williams affiliated with any hospitals?

According to CMS data, Maria Williams is affiliated with Logan Health - Whitefish.

When was this NPI record last updated?

The NPPES record for Maria Williams was last updated on January 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.