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

Nicholas Kellner

Individual provider Registered Dietitian · NPI 1639034010

Nicholas Kellner is a Registered Dietitian in Billings, Montana. Practices as a sole proprietor. Registered with an NPI since 2025.

In the registry since
2025
Specialties on file
2

Practice location Address checks out

1511 Poly Dr
Billings, MT 59102-1739
Phone: (406) 657-1000
Show map & directions

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X
Registered Dietitian Taxonomy 133V00000X

Record details

NPI number1639034010
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedDecember 18, 2025
Last updated in NPPESDecember 18, 2025
Certification dateDecember 18, 2025
Mailing address1511 Poly Dr, Billings, MT 59102-1739

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