Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Kristi E Chang, MD

Otolaryngology Physician in Iowa City, IA · enumerated 2005.

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

National Provider Identifier

1639160781

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Kristi E Chang

Credential MD

Sex Female

Practice address 200 Hawkins Dr, Iowa City, IA, 52242

Phone (319) 384-6657

Fax (319) 356-4547

Enumeration date Oct 28, 2005

Last updated in NPPES Nov 2, 2012

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 34538 (IA) 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
46384	Other	IA	WELLMARK BCBS
0262014	Medicaid	IA	-

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 NPI 1639160781 active?

Yes, as of the latest NPPES snapshot, NPI 1639160781 is active (record last updated 2012-11-02).

How do I verify Kristi Chang's NPI record?

Cross-check NPI 1639160781 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-02.