Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ralph Fisk, OT

Occupational Therapist in Aberdeen, SD · enumerated 2015.

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

National Provider Identifier

1922486802

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Registry record

Entity type Individual (Type 1)

Name Ralph Fisk

Credential OT

Sex Male

Practice address 305 S State St, Aberdeen, SD, 57401

Phone (605) 622-5000

Fax (605) 622-5255

Enumeration date May 12, 2015

Last updated in NPPES May 12, 2015

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 0226 (SD) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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.

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Frequently asked questions

How do I verify Ralph Fisk's NPI record?

Cross-check NPI 1922486802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1922486802 active?

Yes, as of the latest NPPES snapshot, NPI 1922486802 is active (record last updated 2015-05-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-12.