Gail Mathieson-Devereaux, FNP
NPI 1255487724 · Family Nurse Practitioner · Oxford, NY
Gail Mathieson-Devereaux, FNP is a Family Nurse Practitioner provider in Oxford, NY (NPI 1255487724).
Provider details
- NPI number
- 1255487724
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- F330362 (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
19 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
- 2007-01-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gail Mathieson-Devereaux's NPI number?
- Gail Mathieson-Devereaux's National Provider Identifier (NPI) is 1255487724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gail Mathieson-Devereaux's specialty?
- Gail Mathieson-Devereaux is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gail Mathieson-Devereaux located?
- Gail Mathieson-Devereaux's practice location on file with NPPES is 4211 State Highway 220, Oxford, NY 13830-4305.
- What is Gail Mathieson-Devereaux's phone number?
- The practice phone number listed in the NPPES registry for Gail Mathieson-Devereaux is (607) 843-3121.
- Is Gail Mathieson-Devereaux's NPI active?
- Yes — Gail Mathieson-Devereaux's NPI (1255487724) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.