Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jeffrey B. Leer, MAR

Mental Health Counselor in York, PA · enumerated 2007.

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

National Provider Identifier

1093921413

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Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey B. Leer

Credential MAR

Sex Male

Practice address 3400 Concord Rd, York, PA, 17402

Phone (717) 840-7239

Enumeration date May 15, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0080651 (NM) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Jeffrey Leer?

Jeffrey Leer is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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William Young Internal Medicine Physician · York, PA NPI 1578548137 Margaret Smith Psychiatric/Mental Health Nurse Practitioner · York, PA NPI 1043608698 Lucienne Hopkins Medical Physician Assistant · York, PA NPI 1366113862 Samantha Smith Primary Care Nurse Practitioner · York, PA NPI 1023772894 Josephine Dimarcello Psychiatric/Mental Health Nurse Practitioner · York, PA NPI 1730812744 Christopher Hoddinott Family Medicine Physician · York, PA NPI 1922830488

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.