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

Mark Henderson

Occupational Therapist in Owings Mills, MD · enumerated 2018 · practices at Mns Business Corp.

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

National Provider Identifier

1699245084

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Registry record

Entity type Individual (Type 1)

Name Mark Henderson

Sex Male

Practice address Owings Mills, MD, 21117

Phone (410) 707-7190

Enumeration date Nov 28, 2018

Last updated in NPPES Nov 28, 2018

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

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 Mark Henderson?

The National Provider Identifier (NPI) for Mark Henderson is 1699245084, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Henderson practice?

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

Other providers at this practice address

Browse all →

Mns Business Corp Physical Rehabilitation Occupational Therapist · Owings Mills, MD NPI 1043787708

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-28.