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Allergy & Asthma Specialists, P.C.

Specialist in Riverdale, NJ · enumerated 2005 · authorized official Leonard Silverstein, Practice Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689664641

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Registry record

Entity type Organization (Type 2)
Legal business name Allergy & Asthma Specialists, P.C.
Practice address 51 Route 23 South, Riverdale, NJ, 07457
Phone (973) 831-5799
Fax (973) 831-7422
Enumeration date Oct 21, 2005
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

174400000X Specialist Other Service Providers · License MA057113 (NJ) Primary

Authorized official

Name Leonard Silverstein
Title Practice Owner
Phone (201) 236-8282

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.
Where is Allergy & Asthma Specialists, P.C. located?
The practice location on file with NPPES is in Riverdale, NJ.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.