Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jack Koenen, D.C.

Chiropractor in Forest City, IA · enumerated 2006.

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

National Provider Identifier

1043381692

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Jack Koenen

Credential D.C.

Sex Male

Practice address Forest City, IA, 50436

Phone (641) 582-4625

Fax (641) 582-5510

Enumeration date Nov 13, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 04849 (IA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
6503	Other	IA	MIDLANDS CHOICE
20085	Other	IA	WELLMARK
0200857	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

What specialty is Jack Koenen?

Jack Koenen is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.