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

Mr. David Simeon Costner, APRNNP-BC

Individual provider Nurse Practitioner · NPI 1346542867

Mr. David Simeon Costner, APRNNP-BC is a Nurse Practitioner in Plains, Montana. Qualified in 2010, 16 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
16
Licensed in
MT
In the registry since
2010
Specialties on file
2

Practice location Address checks out

406 W Railroad Ave
Plains, MT 59859-9597
Phone: (406) 540-5757
Fax: (833) 906-2418
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 102425 (MT)
Nurse Practitioner Taxonomy 363L00000X · Licence NUR-APRN-LIC-102425 (MT)

Record details

NPI number1346542867
Entity typeIndividual (Type 1)
GenderMale
Credentials APRNNP-BC
Sole proprietorYes
NPI enumeratedDecember 4, 2010
Last updated in NPPESApril 24, 2026
Certification dateApril 24, 2026

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)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Plains