Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katrina Zelenka, FNP-C

Family Nurse Practitioner in Pasadena, CA · enumerated 2014.

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

National Provider Identifier

1265858641

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Registry record

Entity type Individual (Type 1)

Name Katrina Zelenka

Credential FNP-C

Sex Female

Practice address 117 E Colorado Blvd Ste 600, Pasadena, CA, 91105

Phone (844) 735-1418

Fax (844) 749-4733

Enumeration date Mar 10, 2014

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

364SW0102X Women's Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License SP013193 (PA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95006676 (CA) 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

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.

What specialty is Katrina Zelenka?

Katrina Zelenka is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.