Susan Day, PA
NPI 1225376494 · Medical Physician Assistant · West Islip, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Day, PA is a Medical Physician Assistant provider in West Islip, NY (NPI 1225376494).
Provider details
- NPI number
- 1225376494
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- Yes
- License
- 016202 (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
13 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
- 2013-01-23
- Last updated
- 2013-01-23
Frequently asked questions
- What is Susan Day's NPI number?
- Susan Day's National Provider Identifier (NPI) is 1225376494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Day's specialty?
- Susan Day is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Day located?
- Susan Day's practice location on file with NPPES is 1000 Montauk Hwy, West Islip, NY 11795-4927.
- What is Susan Day's phone number?
- The practice phone number listed in the NPPES registry for Susan Day is (631) 376-3251.
- Does Susan Day accept Medicare?
- Susan Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Day's NPI active?
- Yes — Susan Day's NPI (1225376494) is active in the NPPES registry as of the last update on 2013-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.