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Janine Olejnik
NPI 1558608869 · Specialist · Massapequa, NY
Janine Olejnik is a Specialist provider in Massapequa, NY (NPI 1558608869).
Provider details
- NPI number
- 1558608869
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(72/100 index)
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
83% 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
816 N Central Ave
Massapequa, NY 11758-3318
Phone: (516) 236-8342
Street-level locationGet directions
Mailing address
47 Humphrey Dr
Syosset, NY 11791-4022
Registry dates
- Enumerated
- 2013-01-07
- Last updated
- 2013-01-07
Frequently asked questions
- What is Janine Olejnik's NPI number?
- Janine Olejnik's National Provider Identifier (NPI) is 1558608869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janine Olejnik's specialty?
- Janine Olejnik is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Janine Olejnik located?
- Janine Olejnik's practice location on file with NPPES is 816 N Central Ave, Massapequa, NY 11758-3318.
- What is Janine Olejnik's phone number?
- The practice phone number listed in the NPPES registry for Janine Olejnik is (516) 236-8342.
- Is Janine Olejnik's NPI active?
- Yes — Janine Olejnik's NPI (1558608869) is active in the NPPES registry as of the last update on 2013-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.