Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Karen Marie Reiser, FNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1306994652

Mrs. Karen Marie Reiser, FNP is a Nurse Practitioner in Belcourt, North Dakota. Qualified in 2015, 11 years ago. Practices with Oasis Counseling International, a 12-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
11
Licensed in
NE
In the registry since
2007
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

1300 Hospital Loop Hospital Rd
Belcourt, ND 58316
Phone: (701) 477-6111
Fax: (701) 477-2507
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 333 W Norfolk Ave Ste 201, Norfolk, NE 68701-5221 — (402) 379-2030

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 111984 (NE)
Registered Nurse Taxonomy 163W00000X · Licence 50336 (NE)

Record details

NPI number1306994652
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedJanuary 5, 2007
Last updated in NPPESApril 27, 2026
Certification dateApril 27, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Oasis Counseling International — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients206
Services billed 316 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Oasis Counseling International

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 12 clinicians in the practice; 10 are shown here.

Other providers in Belcourt