John Constantinidis
NPI 1497409460 · Dentist · Sayville, NY
John Constantinidis is a Dentist provider in Sayville, NY (NPI 1497409460).
Provider details
- NPI number
- 1497409460
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 063876 (NY)
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$110 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 20417 35th AveBayside, NY 11361-1243Phone: (516) 980-5724
- 151 Westchester HallStony Brook, NY 11794-0001Phone: (631) 444-2557Fax: (631) 444-6013
Registry dates
- Enumerated
- 2022-02-09
- Last updated
- 2025-02-12
- Certified
- 2025-02-12
Frequently asked questions
- What is John Constantinidis's NPI number?
- John Constantinidis's National Provider Identifier (NPI) is 1497409460, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Constantinidis's specialty?
- John Constantinidis is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is John Constantinidis located?
- John Constantinidis's practice location on file with NPPES is 160 Middle Rd Ste 4, Sayville, NY 11782-3126.
- What is John Constantinidis's phone number?
- The practice phone number listed in the NPPES registry for John Constantinidis is (631) 589-5554.
- Is John Constantinidis's NPI active?
- Yes — John Constantinidis's NPI (1497409460) is active in the NPPES registry as of the last update on 2025-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.