Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ruby Chang, MD

Pediatrics Physician in Great Barrington, MA · enumerated 2006.

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

National Provider Identifier

1043279094

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Registry record

Entity type Individual (Type 1)

Name Dr. Ruby Chang

Credential MD

Sex Female

Practice address 100 Maple Ave, Suite 1, Great Barrington, MA, 01230

Phone (413) 528-4047

Fax (413) 528-3407

Enumeration date Mar 20, 2006

Last updated in NPPES Aug 29, 2013

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 51560 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
201051	Other	MA	PILGRIM
J05529	Other	MA	BCBS
3008835	Medicaid	MA	-
010051560MA01	Other	MA	BCBC CONN
11199	Other	MA	HEALTH NEW ENGLAND
7859	Other	MA	HEALTHNET
515600	Other	MA	CONNECTICARE

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 do I verify Ruby Chang's NPI record?

Cross-check NPI 1043279094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043279094 active?

Yes, as of the latest NPPES snapshot, NPI 1043279094 is active (record last updated 2013-08-29).

Other providers at this practice address

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Lisa Sylvia Pediatrics Physician · Great Barrington, MA NPI 1639127749 Ronald Sunog Pediatrics Physician · Great Barrington, MA NPI 1346273646

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-29.