Allopathic & Osteopathic Physicians / 207WX0109X
Individual · specialization · Medicare specialty 18
207WX0109X Neuro-ophthalmology Physician
207WX0109X is the taxonomy code for Neuro-ophthalmology, a specialization of Ophthalmology, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 18, Physician/Ophthalmology, under which 20,658 practitioners are enrolled.
- 1Taxonomy code 207WX0109X
- 2Level Specialization
- 3Medicare specialty 18 Physician/Ophthalmology
- 4Codes in this group 238
Definition
A neuro-ophthalmologist is a subspecialist of ophthalmology. This physician evaluates, treats, and studies disorders of the eye, orbit and nervous system having to do with interactions of the visual motor and visual sensory systems with the central nervous system. Neuro-ophthalmologists manage patients with complex and severe neuro-ophthalmological disorders.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207WX0109X sits
- Group: Allopathic & Osteopathic Physicians — code 102 of 238 in the group
- Classification: Ophthalmology 207W00000X
- Specialization: Neuro-ophthalmology 207WX0109X
Choose 207WX0109X over the general Ophthalmology code (207W00000X) when the provider's training or certification is specifically in neuro-ophthalmology; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 207WX0109X to Medicare specialty 18 (Physician/Ophthalmology). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 20,658 practitioners are enrolled under it nationally, and 4 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 207W00000X Ophthalmology Physician; 207WX0110X Pediatric Ophthalmology and Strabismus Specialist Physician; 207WX0120X Cornea and External Diseases Specialist Physician; 207WX0200X Ophthalmic Plastic and Reconstructive Surgery Physician.
Related codes
| Code | Ophthalmology — other specializations |
|---|---|
| 207W00000X | Ophthalmology Physician |
| 207WX0120X | Cornea and External Diseases Specialist |
| 207WX0009X | Glaucoma Specialist |
| 207WX0200X | Ophthalmic Plastic and Reconstructive Surgery |
| 207WX0110X | Pediatric Ophthalmology and Strabismus Specialist |
| 207WX0107X | Retina Specialist |
The nearest 6 of 7 other codes under Ophthalmology; all are on the group page.
History of 207WX0109X
207WX0109X was added to the code set in 2017.
- 2017-07-01 — new
Find providers with 207WX0109X
Using 207WX0109X
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.