Marilyn Alter
NPI 1316039530 · Adult Health Nurse Practitioner · Smithtown, NY
Marilyn Alter is a Adult Health Nurse Practitioner provider in Smithtown, NY (NPI 1316039530).
Provider details
- NPI number
- 1316039530
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 302377 (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
- 2006-09-28
- Last updated
- 2007-08-29
Frequently asked questions
- What is Marilyn Alter's NPI number?
- Marilyn Alter's National Provider Identifier (NPI) is 1316039530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Alter's specialty?
- Marilyn Alter is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilyn Alter located?
- Marilyn Alter's practice location on file with NPPES is 50 Route 25a, Smithtown, NY 11787-1348.
- What is Marilyn Alter's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Alter is (631) 862-3222.
- Is Marilyn Alter's NPI active?
- Yes — Marilyn Alter's NPI (1316039530) is active in the NPPES registry as of the last update on 2007-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.