Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jeffrey Hall Mckay, LMSW, CASAC

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

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

National Provider Identifier

1821875063

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Hall Mckay

Credential LMSW, CASAC

Sex Male

Practice address Yonkers, NY, 10707

Phone (914) 907-2615

Enumeration date Sep 12, 2023

Last updated in NPPES Sep 12, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 108276 (NY) Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 36043 (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.

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Frequently asked questions

Where does Jeffrey Mckay practice?

The practice location on file with NPPES is in Yonkers, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jeffrey Mckay?

The National Provider Identifier (NPI) for Jeffrey Mckay is 1821875063, a Type 1 (individual) record in the CMS NPPES registry.

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Yolanda Gonzalez Addiction (Substance Use Disorder) Counselor · Tuckahoe, NY NPI 1124547237 Angeli Pemberton Mental Health Counselor · Tuckahoe, NY NPI 1790204113 Sashan Finnikin Clinical Social Worker · Tuckahoe, NY NPI 1780235044 Jonathan Kerz Addiction (Substance Use Disorder) Counselor · Tuckahoe, NY NPI 1043850993 Jillien Shaw Mental Health Counselor · Tuckahoe, NY NPI 1912605635 Donna Bailey Addiction (Substance Use Disorder) Counselor · Tuckahoe, NY NPI 1356040778 Olivia Barbezat Mental Health Counselor · Tuckahoe, NY NPI 1942993720 Francesca Cristiano Mental Health Counselor · Tuckahoe, NY NPI 1518641059

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-12.