Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Christiana Institute of Advanced Surgery, PA

Surgery Physician in Newark, DE · enumerated 2006 · authorized official Isaias Irgau, Practice Owner.

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

National Provider Identifier

1104854850

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Registry record

Entity type Organization (Type 2)

Legal business name Christiana Institute of Advanced Surgery, PA

Practice address 537 Stanton Christiana Road, Ste 102, Newark, DE, 19713

Phone (302) 892-9900

Fax (302) 892-9980

Enumeration date Jun 30, 2006

Last updated in NPPES Sep 21, 2023

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians Primary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Isaias Irgau

Title Practice Owner

Phone (302) 892-9900

Other identifiers

Identifier	Type	State	Issuer
100035954	Medicaid	DE	-
7171679	Other	DE	AETNA COMMERCIAL
2103001000	Other	DE	PERSONAL CHOICE
2947295	Other	DE	AETNA MANAGED CARE
2103001000	Other	DE	KEYSTONE
2103001000	Other	DE	AMERIHEALTH

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 Christiana Institute of Advanced Surgery, PA?

Christiana Institute of Advanced Surgery, PA is registered in NPPES as a Surgery Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-21.