npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › New York › 390200000X

Leonard Close, DDS

NPI 1407740731 · on the registry since 2025

Practice

Address
200 Belle Terre Rd
Port Jefferson, NY 11777
Phone
(631) 474-6000
Organisation at this address
David Anschel Md Pc
Joseh P Boglia Md Pc
Brian Mayrsohn Md Pllc
Island Psychiatry, P.C.
St Charles Hospital Corp
Inferred from a shared address, not stated in the registry.
Clinicians at this address
148

Registry record

Primary taxonomy
390200000X
390200000X
Sex
Male
Record last updated
2025-06-03

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in New York