Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Marisa Kohnen, OTR

Occupational Therapist in Chesterton, IN · enumerated 2006.

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

National Provider Identifier

1861579781

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Registry record

Entity type Individual (Type 1)

Name Mrs. Marisa Kohnen

Credential OTR

Sex Female

Practice address 1120 S Calumet Rd Ste 3, Chesterton, IN, 46304

Phone (219) 983-9675

Fax (219) 983-9681

Enumeration date Nov 1, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 31003944A (IN) Primary

Other identifiers

Identifier	Type	State	Issuer
000000387925	Other	IN	ANTHEM PROVIDER PIN

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 1861579781 active?

Yes, as of the latest NPPES snapshot, NPI 1861579781 is active (record last updated 2007-07-09).

How do I verify Marisa Kohnen's NPI record?

Cross-check NPI 1861579781 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 2007-07-09.