Allopathic & Osteopathic Physicians / 207W00000X
Individual · classification · Medicare specialty 18
207W00000X Ophthalmology Physician
207W00000X is the taxonomy code for 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 207W00000X
- 2Level Classification
- 3Medicare specialty 18 Physician/Ophthalmology
- 4Codes in this group 238
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 207W00000X sits
- Group: Allopathic & Osteopathic Physicians — code 99 of 238 in the group
- Classification: Ophthalmology 207W00000X
This is the general code for Ophthalmology. 7 more specific codes sit beneath it; pick one of those when the provider's training or certification matches it, and this one otherwise. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 207W00000X 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: 207WX0109X Neuro-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 — specializations |
|---|---|
| 207WX0120X | Cornea and External Diseases Specialist |
| 207WX0009X | Glaucoma Specialist |
| 207WX0109X | Neuro-ophthalmology |
| 207WX0200X | Ophthalmic Plastic and Reconstructive Surgery |
| 207WX0110X | Pediatric Ophthalmology and Strabismus Specialist |
| 207WX0107X | Retina Specialist |
| 207WX0108X | Uveitis and Ocular Inflammatory Disease |
History of 207W00000X
NUCC's earliest recorded change to 207W00000X is from 2007 (definition added, source added), and has been revised 1 time since.
- 2007-07-01 — definition added, source added
- 2011-07-01 — modified source
Find providers with 207W00000X
Using 207W00000X
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.