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NICHOLAS KELLNER
NPI 1639034010
Physician Assistant in Billings, MT

Active since December 18, 2025
1511 POLY DR, BILLINGS, MT 59102(406) 657-1000 Get Directions Write a Review

NPPES record last updated: December 18, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Nicholas Kellner NPPES

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

NICHOLAS KELLNER (NPI 1639034010) is an individual physician assistant in Billings, Montana and active in the NPI registry since December 2025.

NPPES Registry Identity

NPI1639034010
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameNICHOLAS KELLNER
Location Address1511 POLY DRBillings, MT 59102-1739
Mailing Address1511 Poly DrBillings, MT 59102-1739
Phone(406) 657-1000
Sole ProprietorYes
Enumeration DateDecember 18, 2025
NPPES CertifiedDecember 18, 2025
✔ NPI 1639034010 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Also ListedDietitian, RegisteredTaxonomy 133V00000X
1511 POLY DR, Billings, MT 59102
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Other Providers at the Same Location NPPES 6

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

ROCKY MOUNTAIN COLLEGE
Orthopaedic Surgery (Sports Medicine)
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (972) 367-4845
LINDSAY LEE MACCATHERINE PA
Physician Assistant
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (406) 657-1000
STEPHANIE N ERICKSON PA-C
Physician Assistant
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (406) 396-5162
CYNTHIA HUTCHINSON LCSW
Social Worker (Clinical)
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (406) 657-1049
ISABELLA RAMIL
Student in an Organized Health Care Education/Training Program
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (551) 265-6936
DR. PATTI A STATES M.D.
Family Medicine
1511 POLY DR
BILLINGS, MT 59102
Yellowstone County (406) 657-1190

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 Nicholas Kellner's NPI number?

The NPI number for Nicholas Kellner is 1639034010. It was assigned to this individual provider in the NPPES registry on December 18, 2025.

Where is Nicholas Kellner located?

Nicholas Kellner practices at 1511 Poly Dr, Billings, MT 59102. The listed phone number is (406) 657-1000.

What is Nicholas Kellner's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Nicholas Kellner was last updated on December 18, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.