Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc A Johnson, LCSW

Clinical Social Worker in Saranac Lake, NY · enumerated 2014.

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

National Provider Identifier

1215348289

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Registry record

Entity type Individual (Type 1)

Name Marc A Johnson

Credential LCSW

Sex Male

Practice address 2233 State Route 86, Saranac Lake, NY, 12983

Phone (518) 897-2606

Enumeration date May 13, 2014

Last updated in NPPES May 13, 2014

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License R041891 (NY) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1215348289 active?

Yes, as of the latest NPPES snapshot, NPI 1215348289 is active (record last updated 2014-05-13).

How do I verify Marc Johnson's NPI record?

Cross-check NPI 1215348289 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-13.