Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Allan Ritter, OTR/L

Hand Occupational Therapist in Sedona, AZ · enumerated 2008.

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

National Provider Identifier

1184885394

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Allan Ritter

Credential OTR/L

Sex Male

Practice address 505 Jacks Canyon Rd, Sedona, AZ, 86351

Phone (928) 284-2411

Fax (928) 284-2439

Enumeration date Jun 19, 2008

Last updated in NPPES Jun 19, 2008

Taxonomy & licenses

225XH1200X Hand Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2123 (AZ) Primary

225XN1300X Neurorehabilitation Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2123 (AZ) Secondary

225XR0403X Driving and Community Mobility Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2123 (AZ) 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.

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Frequently asked questions

How do I verify Mark Ritter's NPI record?

Cross-check NPI 1184885394 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184885394 active?

Yes, as of the latest NPPES snapshot, NPI 1184885394 is active (record last updated 2008-06-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-19.