Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Katrina Lou Jahn, CNS

Adult Psychiatric/Mental Health Clinical Nurse Specialist in Indianapolis, IN · enumerated 2007.

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

National Provider Identifier

1679755482

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Registry record

Entity type Individual (Type 1)

Name Ms. Katrina Lou Jahn

Credential CNS

Sex Female

Practice address 1481 W 10th St, Psychiatry Ambulatory Care Clinic, Indianapolis, IN, 46202

Phone (317) 988-2000

Fax (317) 988-2884

Enumeration date Dec 4, 2007

Last updated in NPPES Dec 4, 2007

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 28134167A (IN) Secondary

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 2007009969 (IN) Primary

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 Katrina Jahn?

Katrina Jahn is registered in NPPES with the primary taxonomy of Adult Psychiatric/Mental Health Clinical Nurse Specialist. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-04.