Nicholas Kellner
NPI 1639034010 · Physician Assistant · Billings, MT
Nicholas Kellner is a Physician Assistant provider in Billings, MT (NPI 1639034010).
Provider details
- NPI number
- 1639034010
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Registered Dietitian133V00000X
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-12-18
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is Nicholas Kellner's NPI number?
- Nicholas Kellner's National Provider Identifier (NPI) is 1639034010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Kellner's specialty?
- Nicholas Kellner is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicholas Kellner located?
- Nicholas Kellner's practice location on file with NPPES is 1511 Poly Dr, Billings, MT 59102-1739.
- What is Nicholas Kellner's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Kellner is (406) 657-1000.
- Is Nicholas Kellner's NPI active?
- Yes — Nicholas Kellner's NPI (1639034010) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.