Leonard Irwin Berkowitz, D.D.S.
General Practice Dentistry · Dix Hills, NY
Leonard Irwin Berkowitz, D.D.S. is a general practice dentistry with a practice address in Dix Hills, New York, and NPI 1346239688, issued on Oct 19, 2005. Check the license (New York 030656, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leonard Irwin Berkowitz
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 030656 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3 Chablis Dr, Dix Hills, NY 11746
- Phone
- (631) 673-6096
- Enumerated
- Oct 19, 2005
- Record last updated
- Jan 16, 2023
- Fax
- (631) 549-1026
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 7,828 in New York → Look up another NPI →
Verify Leonard Irwin Berkowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 030656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average general practice dentistry in 2024
18 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Leonard Irwin Berkowitz among 7,828 general practice dentistry records in New York
Leonard Irwin Berkowitz, D.D.S. is one of 7,828 general practice dentistry records with a practice address in New York. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2023 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 general practice dentistry records list a practice address in Dix Hills
They are 7 of the 700 NPPES records with a practice address in Dix Hills, and 7,828 general practice dentistry records in New York.
All 7,828 in New York → Every provider in Dix Hills → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Andrew Cohen, DDSHuntington Station, NY 117461407066889
- Charles Davidowitz, DDSHuntington Station, NY 117461568638906
- Richard Ehrlich, D.D.S.Dix Hills, NY 117461588674238
- Hatem Elmissir, DDSDix Hills, NY 117461437299922
- Rebekah Kane, DDSHuntington Station, NY 117461497895825
- Aziz Khan, DDSHuntington Station, NY 117461811003908
- Nourhan Mekawy, DDSDix Hills, NY 117461972753861
- Porfirio Nunez, DDSHuntington Station, NY 117461023238326
Common questions
What is Leonard Irwin Berkowitz, D.D.S.'s NPI number?
Leonard Irwin Berkowitz, D.D.S.'s National Provider Identifier (NPI) is 1346239688, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Irwin Berkowitz, D.D.S. located?
The NPPES record lists a practice address at 3 Chablis Dr, Dix Hills, NY, 11746. Phone: (631) 673-6096. Providers update this record themselves, so call before visiting.
How can I verify Leonard Irwin Berkowitz, D.D.S.'s license?
NPPES lists New York license number 030656, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Leonard Irwin Berkowitz, D.D.S. prescribe under Medicare Part D?
In 2024, Leonard Irwin Berkowitz, D.D.S. had 18 Medicare Part D claims; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.