Heidemarie Grattan, ANP
NPI 1427382456 · Adult Health Nurse Practitioner · Baiting Hollow, NY
Heidemarie Grattan, ANP is a Adult Health Nurse Practitioner provider in Baiting Hollow, NY (NPI 1427382456).
Provider details
- NPI number
- 1427382456
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F304429-1 (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
16 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
- 2009-09-23
- Last updated
- 2009-09-23
Frequently asked questions
- What is Heidemarie Grattan's NPI number?
- Heidemarie Grattan's National Provider Identifier (NPI) is 1427382456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidemarie Grattan's specialty?
- Heidemarie Grattan is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Heidemarie Grattan located?
- Heidemarie Grattan's practice location on file with NPPES is 15 Kimberly Court, Baiting Hollow, NY 11946.
- What is Heidemarie Grattan's phone number?
- The practice phone number listed in the NPPES registry for Heidemarie Grattan is (631) 728-4700.
- Is Heidemarie Grattan's NPI active?
- Yes — Heidemarie Grattan's NPI (1427382456) is active in the NPPES registry as of the last update on 2009-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.