Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Katheryn M Warren MD PA

Q: What type of organization is Katheryn M Warren MD PA?

Katheryn M Warren MD PA is registered in NPPES as a Specialist (its primary provider taxonomy).

Specialist in Newark, DE · enumerated 2008 · authorized official Aileen Lennon, Billing Manager.

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

National Provider Identifier

1215187976

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Registry record

Entity type Organization (Type 2)

Legal business name Katheryn M Warren MD PA

Practice address 62 Omega Dr, E-62 Omega Professional Center, Newark, DE, 19713

Phone (302) 368-9611

Fax (302) 368-3424

Enumeration date Sep 30, 2008

Last updated in NPPES Apr 6, 2023

Taxonomy & classification

174400000X Specialist Other Service Providers · License C10004472 (DE) Primary

Authorized official

Name Aileen Lennon

Title Billing Manager

Phone (302) 368-9611

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 is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Katheryn M Warren MD PA?

Katheryn M Warren MD PA is registered in NPPES as a Specialist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-06.