Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martin Francis Guilfoy, LADC I

Addiction (Substance Use Disorder) Counselor in Quincy, MA · enumerated 2022 · practices at Ashby Behavioral Health, LLC.

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

National Provider Identifier

1457099178

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Registry record

Entity type Individual (Type 1)

Name Martin Francis Guilfoy

Credential LADC I

Sex Male

Practice address 604 Washington St, Quincy, MA, 02169

Phone (866) 682-9355

Enumeration date May 23, 2022

Last updated in NPPES Mar 20, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 13221 (MA) Primary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 13221 Secondary

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

How do I verify Martin Guilfoy's NPI record?

Cross-check NPI 1457099178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457099178 active?

Yes, as of the latest NPPES snapshot, NPI 1457099178 is active (record last updated 2025-03-20).

Other providers at this practice address

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Ashby Behavioral Health, LLC Substance Use Disorder Rehabilitation Clinic/Center · Quincy, MA NPI 1508484304 Patrick Chace Addiction (Substance Use Disorder) Counselor · Quincy, MA NPI 1811711146

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-20.