NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elena Zidan, MD

Allergy Physician in Waterford, CT · enumerated 2020 · practices at Shoreline Allergy & Asthma Associates LLP.

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

National Provider Identifier

1982233839

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Elena Zidan
Credential MD
Sex Female
Practice address 196 Waterford Pkwy S Ste 305b, Waterford, CT, 06385
Fax (860) 574-9170
Enumeration date Apr 3, 2020
Last updated in NPPES May 5, 2026

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License 080664 (CT) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 080664 (CT) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Elena Zidan?
Elena Zidan is registered in NPPES with the primary taxonomy of Allergy Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-05.