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Ellis & Sitkoff PC

Geriatric Medicine (Internal Medicine) Physician in West Chester, PA · enumerated 2006 · authorized official Andrew Sitkoff, Owner.

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

National Provider Identifier

1255421459

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Registry record

Entity type Organization (Type 2)
Legal business name Ellis & Sitkoff PC
Practice address 839 Lincoln Ave Ste A, West Chester, PA, 19380
Phone (610) 241-0305
Enumeration date Oct 16, 2006
Last updated in NPPES Oct 21, 2010

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License OS005998L (PA) Primary

Authorized official

Name Andrew Sitkoff
Title Owner
Phone (610) 241-3050

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.

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Frequently asked questions

Who is the authorized official for Ellis & Sitkoff PC?
NPPES lists Andrew Sitkoff (Owner) as the authorized official for this organization.
What is the NPI number for Ellis & Sitkoff PC?
The NPI for Ellis & Sitkoff PC is 1255421459, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-21.