Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rowland Chang, MD

Rheumatology Physician in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1740243807

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Registry record

Entity type Individual (Type 1)

Name Rowland Chang

Credential MD

Sex Male

Practice address 355 E Erie St, Chicago, IL, 60611

Phone (312) 238-1000

Fax (312) 238-5006

Enumeration date Apr 10, 2006

Last updated in NPPES Apr 22, 2022

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 036064404 (IL) 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
250011905	Other	IL	RAILROAD MEDICARE
036064404-4	Medicaid	IL	-

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

Where does Rowland Chang practice?

The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Rowland Chang?

The National Provider Identifier (NPI) for Rowland Chang is 1740243807, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-22.