Joseph Portnoy, DDS
General Practice Dentistry · Lindenhurst, NY
Joseph Portnoy, DDS is a general practice dentistry with a practice address in Lindenhurst, New York, and NPI 1225103526, issued on Nov 21, 2006. Check the license (New York 0438361, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joseph Portnoy
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 0438361 NY
Self-reported in NPPES; status is on the state search - Practice location
- 266 East Sunrise Highway, Lindenhurst, NY 11757
- Phone
- (631) 226-5252
- Enumerated
- Nov 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (631) 226-5293
- Entity
- Type 1 · individual
Also registered at 266 East Sunrise Highway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marc Sperber, DDSGeneral Practice Dentistry1760557060
Verify Joseph Portnoy 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 0438361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13 general practice dentistry records list a practice address in Lindenhurst
They are 13 of the 633 NPPES records with a practice address in Lindenhurst, and 7,828 general practice dentistry records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13 in Lindenhurst → All 7,828 in New York → Every provider in Lindenhurst →
Other general practice dentistry records in New York
- Samantha Aaron, DMDNew York, NY1972733178
- Bruce Aaronson, D.D.S.Oneonta, NY1881670107
- Theodore Aaronson, DDSNew York, NY1679540124
- William Aaronson, DDSFreeport, NY1619071271
- Falka Abaci, MDBrooklyn, NY1639252356
- Laarni Abanto, D.M.D.Bronx, NY1295896413
- Lester Abbamonte, D.D.S.Rochester, NY1679624076
- Timothy Abbamonte, D.D.S.Rochester, NY1780735183
- Gregory Abbott, D.D.S.Getzville, NY1285857912
- Avraham Abboudi, DMDStaten Island, NY1063537421
Common questions
What is Joseph Portnoy, DDS's NPI number?
Joseph Portnoy, DDS's National Provider Identifier (NPI) is 1225103526, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Portnoy, DDS located?
The NPPES record lists a practice address at 266 East Sunrise Highway, Lindenhurst, NY, 11757. Phone: (631) 226-5252. Providers update this record themselves, so call before visiting.
How can I verify Joseph Portnoy, DDS's license?
NPPES lists New York license number 0438361, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity 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. 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.