Nicholas Johnnidis, D.M.D.
NPI 1215181284 · General Practice Dentistry · Nassau County, Long Island, NY
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Johnnidis, D.M.D. is a General Practice Dentistry provider in Nassau County, Long Island, NY (NPI 1215181284).
Provider details
- NPI number
- 1215181284
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 034240 (NY)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-11-04
- Last updated
- 2008-11-04
Frequently asked questions
- What is Nicholas Johnnidis's NPI number?
- Nicholas Johnnidis's National Provider Identifier (NPI) is 1215181284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Johnnidis's specialty?
- Nicholas Johnnidis is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Nicholas Johnnidis located?
- Nicholas Johnnidis's practice location on file with NPPES is 5 Wier Lane, Nassau County, Long Island, NY 11560.
- What is Nicholas Johnnidis's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Johnnidis is (516) 759-2288.
- Does Nicholas Johnnidis accept Medicare?
- Nicholas Johnnidis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Johnnidis's NPI active?
- Yes — Nicholas Johnnidis's NPI (1215181284) is active in the NPPES registry as of the last update on 2008-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.