Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karen Elaine Carlson, M.D.

Hospitalist Physician in Ames, IA · enumerated 2005.

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

National Provider Identifier

1528055688

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Registry record

Entity type Individual (Type 1)

Name Dr. Karen Elaine Carlson

Credential M.D.

Sex Female

Practice address 1111 Duff Ave, Ames, IA, 50010

Phone (515) 239-4431

Fax (515) 239-3644

Enumeration date Oct 4, 2005

Last updated in NPPES Nov 10, 2020

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 31131 (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
2078535	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.

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Frequently asked questions

How do I verify Karen Carlson's NPI record?

Cross-check NPI 1528055688 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1528055688 active?

Yes, as of the latest NPPES snapshot, NPI 1528055688 is active (record last updated 2020-11-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-10.