Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Ian L. Greybull, FNP

Individual provider Nurse Practitioner · NPI 1801105531

Mr. Ian L. Greybull, FNP is a Nurse Practitioner in Bismarck, North Dakota. Qualified in 2010, 16 years ago. Practices with Shoshone-Paiute Tribes, a 9-clinician group and accepts Medicare assignment. Licensed in North Dakota.

Years since qualifying
16
Licensed in
ND
In the registry since
2010
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

300 W Century Ave
Bismarck, ND 58503
Phone: (701) 323-9900
Fax: (701) 323-9911
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence R29280 (ND)

Record details

NPI number1801105531
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP
Sole proprietorYes
NPI enumeratedSeptember 29, 2010
Last updated in NPPESMarch 5, 2012

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Shoshone-Paiute Tribes — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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