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Dr. John Colleran, D.O.

Interventional Cardiology Physician in North Little Rock, AR · enumerated 2006.

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

National Provider Identifier

1265494231

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Registry record

Entity type Individual (Type 1)
Name Dr. John Colleran
Credential D.O.
Sex Male
Practice address 4000 Richards Rd, Suite A, North Little Rock, AR, 72117
Phone (501) 758-5133
Fax (501) 758-5173
Enumeration date Apr 5, 2006
Last updated in NPPES Jan 4, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License OS7028 (FL) Secondary
207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License E-5551 (AR) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

Where does John Colleran practice?
The practice location on file with NPPES is in North Little Rock, AR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Colleran?
The National Provider Identifier (NPI) for John Colleran is 1265494231, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-04.