KATHERYN M WARREN MD PA
NPI 1215187976
Specialist in Newark, DE
About Katheryn M Warren Md Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERYN M WARREN MD PA (NPI 1215187976) is a healthcare organization registered as a specialist in Newark, Delaware and active in the NPI registry since September 2008. The organization lists Aileen Lennon, Billing Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Katheryn M Warren Md Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Katheryn M Warren MD PA, which bills Medicare for the services this clinician delivers.
Clinician (1)
Newark, DE 19713
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Katheryn M Warren MD PA's NPI number?
The NPI number for Katheryn M Warren MD PA is 1215187976. It was assigned to this organization in the NPPES registry on September 30, 2008.
Where is Katheryn M Warren MD PA located?
Katheryn M Warren MD PA is located at 62 Omega Dr E-62 Omega Professional Center, Newark, DE 19713. The listed phone number is (302) 368-9611.
What is Katheryn M Warren MD PA's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Katheryn M Warren MD PA enrolled in Medicare?
Yes. Katheryn M Warren MD PA is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Katheryn M Warren MD PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Plastic and Reconstructive Surgery) reassigns their Medicare billing to Katheryn M Warren MD PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Katheryn M Warren MD PA was last updated on April 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Katheryn M Warren Md Pa · NPI 1215187976
Specialist organization in Newark, Delaware. Organization record, active in the CMS NPPES registry since September 30, 2008.
## Identity
- **NPI:** 1215187976 (Entity type: Organization)
- **Enumerated:** September 30, 2008
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Aileen Lennon, BILLING MANAGER
## Practice location
- **Address:** 62 OMEGA DR, E-62 OMEGA PROFESSIONAL CENTER, Newark, DE 19713
- **Phone:** (302) 368-9611 · **Fax:** (302) 368-3424
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Plastic and Reconstructive Surgery) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 6, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1215187976) · Data from the CMS NPPES public registry.