Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY K HAUGEN MSN, APRN, FNP-C
NPI 1245976844
Nurse Practitioner - Family in Oakes, ND

Active since May 07, 2022PECOS Enrolled

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 15, 2026, May 7, 2022 (2 updates tracked since 2022).

About Mary K Haugen Msn, Aprn, Fnp-c NPPES

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

MARY K HAUGEN MSN, APRN, FNP-C (NPI 1245976844) is an individual family provider in Oakes, North Dakota, licensed in North Dakota (R33701) and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Litchville, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1245976844
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY K HAUGENCredential: MSN, APRN, FNP-C
Location Address420 S 7TH STOakes, ND 58474-2024
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-6585
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 7, 2022
Last NPPES UpdateOctober 15, 20262 updates tracked since enumeration
NPPES CertifiedOctober 15, 2026
✔ NPI 1245976844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in ND · R33701
420 S 7TH ST, Oakes, ND 58474

Secondary Practice Location 1

Location 110948 Highway 46Litchville, ND 58461-9516 · Phone (218) 252-0786

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary K Haugen Msn, Aprn, Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7911376363
PECOS Enrollment IDI20260120002207
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.

Medicare Billing Reassignment

Medicare enrollment records show Mary Haugen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Health Service
500 E FRONT AVE STE 203
Bismarck, ND 58504
  • Reassigned Medicare billing, North Dakota enrollment
  • 3 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 58474 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 14

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

Nurse Practitioner (Family)
420 S 7TH ST
OAKES, ND 58474
Nurse Practitioner (Family)
420 S 7TH ST
OAKES, ND 58474
Nurse Practitioner (Family)
420 S 7TH ST
OAKES, ND 58474
Nurse Practitioner (Psychiatric/Mental Health)
420 S 7TH ST
OAKES, ND 58474
Family Medicine
420 S 7TH ST
OAKES, ND 58474
Physician Assistant
420 S 7TH ST
OAKES, ND 58474
Family Medicine
420 S 7TH ST
OAKES, ND 58474
Physical Therapist
420 S 7TH ST
OAKES, ND 58474

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 Mary Haugen's NPI number?

The NPI number for Mary Haugen is 1245976844. It was assigned to this individual provider in the NPPES registry on May 7, 2022.

Where is Mary Haugen located?

Mary Haugen practices at 420 S 7th St, Oakes, ND 58474. The listed phone number is (701) 742-3267.

What is Mary Haugen's specialty?

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

Is Mary Haugen enrolled in Medicare?

Yes. Mary Haugen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Haugen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Haugen reassigns Medicare benefits to Chi Health Connect At Home - Fargo (Bismarck, ND). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Haugen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Haugen was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.