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Jonathan Chang

Colon & Rectal Surgery Physician in Bloomfield, CT · enumerated 2017 · practices at Elcg Medical LLC.

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

National Provider Identifier

1861924755

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Registry record

Entity type Individual (Type 1)
Name Jonathan Chang
Sex Male
Practice address 6 Northwestern Dr Ste 305, Bloomfield, CT, 06002
Phone (860) 242-8591
Fax (860) 242-2511
Enumeration date Mar 30, 2017
Last updated in NPPES Aug 5, 2025

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 80291 (CT) Primary

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

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 Jonathan Chang?
Jonathan Chang is registered in NPPES with the primary taxonomy of Colon & Rectal Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-05.