Mary Westerfield, FNP
NPI 1063395622 · Family Nurse Practitioner · Horseheads, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Westerfield, FNP is a Family Nurse Practitioner provider in Horseheads, NY (NPI 1063395622).
Provider details
- NPI number
- 1063395622
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 357408 (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
Under 1 yr in 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
- 2025-07-30
- Last updated
- 2025-07-30
- Certified
- 2025-06-30
Frequently asked questions
- What is Mary Westerfield's NPI number?
- Mary Westerfield's National Provider Identifier (NPI) is 1063395622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Westerfield's specialty?
- Mary Westerfield is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Westerfield located?
- Mary Westerfield's practice location on file with NPPES is 100 John Roemmelt Dr Ste 302, Horseheads, NY 14845-8304.
- What is Mary Westerfield's phone number?
- The practice phone number listed in the NPPES registry for Mary Westerfield is (607) 873-1810.
- Does Mary Westerfield accept Medicare?
- Mary Westerfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Westerfield's NPI active?
- Yes — Mary Westerfield's NPI (1063395622) is active in the NPPES registry as of the last update on 2025-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.