NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Associates in Colon & Rectal Diseases, P.A.

Colon & Rectal Surgery Physician in Millburn, NJ · enumerated 2006 · authorized official Robert Orringer, Managing Partner.

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

National Provider Identifier

1831164086

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Associates in Colon & Rectal Diseases, P.A.
Practice address 231 Millburn Ave, Millburn, NJ, 07041
Fax (973) 467-1317
Enumeration date Feb 21, 2006
Last updated in NPPES Aug 17, 2018

Taxonomy & classification

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

Authorized official

Name Robert Orringer
Title Managing Partner

Other identifiers

Identifier Type State Issuer
D09142-SCE402 Other NJ OXFORD GROUP #
0489140 Other NJ AETNA GROUP #
CE2021 Other - RAILROAD MEDICARE
0X00NJ4000 Other NJ HEALTHNET GROUP #

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

Where is Associates in Colon & Rectal Diseases, P.A. located?
The practice location on file with NPPES is in Millburn, NJ.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-08-17. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-17.