Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Effie C. Chang, M.D., P.C.

Gynecology Physician in New Haven, CT · enumerated 2011 · authorized official Effie Chang, Owner.

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

National Provider Identifier

1154605293

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Effie C. Chang, M.D., P.C.

Practice address 136 Sherman Ave, Suite 302, New Haven, CT, 06511

Phone (203) 776-5360

Fax (203) 787-4990

Enumeration date Oct 7, 2011

Last updated in NPPES Oct 7, 2011

Taxonomy & classification

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 17026 (CT) Primary

Authorized official

Name Effie Chang

Title Owner

Phone (203) 776-5360

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-10-07. Verify at npiregistry.cms.hhs.gov.

Where is Effie C. Chang, M.D., P.C. located?

The practice location on file with NPPES is in New Haven, CT.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-07.