Electrodiagnostic Medicine Physician: NPI taxonomy code 204R00000X
Taxonomy code 204R00000X is Electrodiagnostic Medicine, in the Allopathic & Osteopathic Physicians group.
394 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 204R00000X |
|---|---|
| Group | Allopathic & Osteopathic Physicians |
| Classification | Electrodiagnostic Medicine |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 394 (16 individuals, 378 organizations) |
What NUCC says: Electrodiagnostic medicine is the medical subspecialty that applies neurophysiologic techniques to diagnose, evaluate, and treat patients with impairments of the neurologic, neuromuscular, and/or muscular systems. (excerpt of the NUCC 26.1 definition)
Find Electrodiagnostic Medicine Physician providers
Search the registry for providers listing Electrodiagnostic Medicine. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| Texas | 232 | 58.9% |
| California | 17 | 4.3% |
| Georgia | 16 | 4.1% |
| Nevada | 13 | 3.3% |
| New Jersey | 12 | 3.0% |
| Oklahoma | 11 | 2.8% |
| Michigan | 10 | 2.5% |
| Arkansas | 8 | 2.0% |
| Massachusetts | 7 | 1.8% |
| Florida | 6 | 1.5% |
Top states by practice location, from the NPPES file of September 13, 2026.
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.