Specialties / Neurology
Medicare specialty 13 · #23 of 83 by enrollment
Neurology: Medicare enrollment by state
21,541 NPIs are enrolled in Medicare as neurology (provider type 14-13), number 23 of 83 practitioner specialties. The most are in California (2,761), then New York (2,354). As a share of each state's Medicare-enrolled NPIs, the specialty is largest in North Dakota (2.5%) and smallest in Alaska (0.7%). Another 2,477 are enrolled in the same specialty only to order and refer, not to bill.
- 1Enrolled NPIs 21,541
- 2Most in California
- 3Taxonomy codes mapped 5
- 4Medicare specialty code 13
Taxonomy codes for neurology
CMS's crosswalk maps 5 NUCC taxonomy codes to Medicare specialty 13. A provider enrolling as neurology should hold one of them as the primary taxonomy on their NPI.
| Code | Name |
|---|---|
| 2084A2900X | Neurocritical Care Physician |
| 2084E0001X | Epilepsy Physician |
| 2084N0400X | Neurology Physician |
| 2084N0402X | Neurology with Special Qualifications in Child Neurology Physician |
| 2085N0700X | Neuroradiology Physician |
Where it is concentrated
Raw counts follow population, so the more telling figure is each state's share: what fraction of the state's Medicare-enrolled NPIs are neurology. Nationally the specialty is 0.8% of enrolled NPIs. The highest shares are in North Dakota (2.5%), New Hampshire (2.3%), South Dakota (1.8%); the lowest in Alaska (0.7%), Wyoming (0.8%), Hawaii (0.8%). 51 of the 51 (50 states and DC) have at least one enrolled.
Billing versus order-and-refer enrollment
Medicare enrolls practitioners in two ways. A full enrollment lets the provider bill Medicare for their own services; it is what the 21,541 above count. An order-and-refer-only enrollment lets a provider who never bills Medicare — a resident, a VA or military physician, a dentist ordering imaging — still order tests, equipment and referrals that Medicare pays for. 2,477 neurology NPIs hold that limited enrollment.
Every state
Counts are unique NPIs enrolled in each state; a provider enrolled in two states counts in both. The share is of all Medicare-enrolled NPIs in that state.
| State | Enrolled | Share of state |
|---|---|---|
| California | 2,761 | 1.1% |
| New York | 2,354 | 1.2% |
| Florida | 1,880 | 1% |
| Texas | 1,796 | 0.9% |
| Pennsylvania | 1,442 | 1.1% |
| Ohio | 1,268 | 1.2% |
| Illinois | 1,155 | 1% |
| Georgia | 1,092 | 1.3% |
| Massachusetts | 1,019 | 1.2% |
| Michigan | 1,010 | 1% |
| New Jersey | 1,002 | 1.2% |
| North Carolina | 1,000 | 1% |
| Washington | 822 | 1.2% |
| Wisconsin | 776 | 1.3% |
| Virginia | 730 | 1% |
| Tennessee | 724 | 1.1% |
| Missouri | 713 | 1.3% |
| Indiana | 696 | 1.2% |
| Minnesota | 643 | 1% |
| Arizona | 626 | 1.1% |
| Kentucky | 573 | 1.3% |
| Maryland | 565 | 1% |
| Colorado | 558 | 1% |
| Oregon | 528 | 1.3% |
| South Carolina | 489 | 1% |
| Connecticut | 482 | 1.1% |
| District of Columbia | 472 | 0.9% |
| Alabama | 423 | 1% |
| New Hampshire | 410 | 2.3% |
| Louisiana | 406 | 1% |
| Iowa | 385 | 1.2% |
| Oklahoma | 340 | 1.1% |
| Kansas | 290 | 1% |
| Arkansas | 284 | 1.1% |
| West Virginia | 268 | 1.3% |
| North Dakota | 259 | 2.5% |
| Mississippi | 252 | 1% |
| Montana | 236 | 1.7% |
| New Mexico | 229 | 1.1% |
| Utah | 219 | 0.9% |
| Maine | 210 | 1.2% |
| Nebraska | 204 | 1% |
| Delaware | 196 | 1.5% |
| South Dakota | 186 | 1.8% |
| Nevada | 183 | 0.8% |
| Rhode Island | 160 | 1.2% |
| Idaho | 141 | 0.8% |
| Vermont | 109 | 1.2% |
| Hawaii | 99 | 0.8% |
| Wyoming | 55 | 0.8% |
| Alaska | 50 | 0.7% |
Sources: CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29; CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026. Checked 2026-10-24. Methodology.