Brian Callahan, P.A.
NPI 1245415843 · Physician Assistant · Willsboro, NY
Brian Callahan, P.A. is a Physician Assistant provider in Willsboro, NY (NPI 1245415843).
Provider details
- NPI number
- 1245415843
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
- License
- 007116 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2008-01-02
- Last updated
- 2023-03-07
Frequently asked questions
- What is Brian Callahan's NPI number?
- Brian Callahan's National Provider Identifier (NPI) is 1245415843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Callahan's specialty?
- Brian Callahan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brian Callahan located?
- Brian Callahan's practice location on file with NPPES is 39 Farrell Rd, Willsboro, NY 12996-3904.
- What is Brian Callahan's phone number?
- The practice phone number listed in the NPPES registry for Brian Callahan is (518) 963-4275.
- Is Brian Callahan's NPI active?
- Yes — Brian Callahan's NPI (1245415843) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.