Respiratory, Developmental, Rehabilitative and Restorative Service Providers / 222Z00000X
Individual · classification · Medicare specialty 55
222Z00000X Orthotist
222Z00000X is the taxonomy code for Orthotist, in the NUCC group “Respiratory, Developmental, Rehabilitative and Restorative Service Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 55, Individual Certified Orthotist, under which 0 practitioners are enrolled, and to 2 other specialties listed below.
- 1Taxonomy code 222Z00000X
- 2Level Classification
- 3Medicare specialty 55 Individual Certified Orthotist
- 4Codes in this group 82
Definition
A health care professional who is specifically educated and trained to manage comprehensive orthotic patient care, including musculoskeletal and neuromuscular anomalies resulting from injuries or disease processes involving the lower extremity, upper extremity or spinal segment/s and positional deformation of the cranium. Orthotists assess specific patient needs, formulate an appropriate treatment plan, implement the treatment plan and provide follow-up care.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 222Z00000X sits
- Group: Respiratory, Developmental, Rehabilitative and Restorative Service Providers — code 29 of 82 in the group
- Classification: Orthotist 222Z00000X
Orthotist has no specializations, so 222Z00000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 222Z00000X to Medicare specialty 55 (Individual Certified Orthotist) and Medicare specialty 57 (Individual Certified Prosthetist-Orthotist) and Medicare specialty B2 (Pedorthic personnel). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 0 practitioners are enrolled under it nationally.
Related codes
No other codes share the classification Orthotist. The rest of Respiratory, Developmental, Rehabilitative and Restorative Service Providers is on the group page.
History of 222Z00000X
NUCC's earliest recorded change to 222Z00000X is from 2010 (modified), and has been revised 1 time since.
- 2010-07-01 — modified
- 2013-07-01 — modified
Find providers with 222Z00000X
Using 222Z00000X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.