NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Frances Ronan, CASAC

Addiction (Substance Use Disorder) Counselor in Riverhead, NY · enumerated 2023.

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

National Provider Identifier

1609645852

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Christopher Frances Ronan
Credential CASAC
Sex Male
Practice address 240 W Main St, Riverhead, NY, 11901
Enumeration date Dec 29, 2023
Last updated in NPPES Dec 29, 2023

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 31805 (NY) Primary

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 the NPI number for Christopher Ronan?
The National Provider Identifier (NPI) for Christopher Ronan is 1609645852, a Type 1 (individual) record in the CMS NPPES registry.
Where does Christopher Ronan practice?
The practice location on file with NPPES is in Riverhead, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-29.