MRS. HEIDI NICOLE OIEN FNP-C
NPI 1669362604
Nurse Practitioner in Williston, ND

Q: What is Heidi Oien's NPI number?

The NPI number for Heidi Oien is 1669362604. It was assigned to this individual provider in the NPPES registry on July 9, 2025. The provider is also known as Heidi Nicole Benter.

Q: What is Heidi Oien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Heidi Oien was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since July 09, 2025PECOS EnrolledAccepts Medicare Assignment

1301 15TH AVE W, WILLISTON, ND 58801(701) 774-7400 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Mrs. Heidi Nicole Oien Fnp-c NPPES

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

MRS. HEIDI NICOLE OIEN FNP-C (NPI 1669362604) is an individual nurse practitioner in Williston, North Dakota, licensed in North Dakota (202827) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with Chi St Alexius Health Williston, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1669362604

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMRS. HEIDI NICOLE OIENCredential: FNP-C

Location Address1301 15TH AVE WWilliston, ND 58801-3821

Mailing Address107 10th St NwBeulah, ND 58523-6243 · (701) 799-4054

Phone(701) 774-7400

Sole ProprietorYes

Medical School CMSOtherGraduated 2025

Enumeration DateJuly 9, 2025

NPPES CertifiedJuly 9, 2025

✔ NPI 1669362604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in ND · 202827

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

1301 15TH AVE W, Williston, ND 58801

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Other Names 1

Former Name (1)Heidi Nicole Benter

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of North Dakota.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

Mrs. Heidi Nicole Oien Fnp-c 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 ID5395241830

PECOS Enrollment IDI20251002003492

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.

Chi St Alexius Health Williston

Critical Access Hospitals · Williston, ND

OwnershipVoluntary non-profit - Church

CMS Certification Number351334

Location1301 15th Ave WWilliston, ND 58801 · Williams County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 58801 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

$85.71 typical visit price

range $55.75 – $168.12

Typical copayment $21.42 (range $13.93 – $42.03)

Most-billed visit code 99203

Established Patient

$98.29 typical visit price

range $18.11 – $137.65

Typical copayment $24.57 (range $4.52 – $34.41)

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 20

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

YESUL SONG

Pharmacist