Adult Development & Aging Psychologist vs Clinical Psychologist
Clinical Psychologist has 241.8 times as many registry records as Adult Development & Aging Psychologist: 69,391 against 287. Each count is the NPPES records whose primary taxonomy is the specialty, so it measures how providers describe their main practice, not everyone trained in it.
Adult Development & Aging Psychologist: 287 records in 45 states
Clinical Psychologist: 69,391 records in 56 states
By state, with records per 100,000 residents
| State | Adult Development & Aging Psychologist | Clinical Psychologist | Per 100,000 (first) | Per 100,000 (second) |
|---|---|---|---|---|
| California | 42 | 12,647 | 0.1 | 32.5 |
| New York | 19 | 6,558 | 0.1 | 33.5 |
| Illinois | 3 | 3,947 | 0.0 | 31.5 |
| Massachusetts | 10 | 3,185 | 0.1 | 45.5 |
| Florida | 16 | 2,980 | 0.1 | 13.2 |
| Michigan | 17 | 2,965 | 0.2 | 29.5 |
| Texas | 19 | 2,732 | 0.1 | 9.0 |
| Pennsylvania | 8 | 2,597 | 0.1 | 20.0 |
| Virginia | 1 | 2,329 | 0.0 | 26.9 |
| North Carolina | 4 | 1,712 | 0.0 | 15.8 |
| Washington | 6 | 1,675 | 0.1 | 21.4 |
| Colorado | 4 | 1,652 | 0.1 | 28.1 |
| Ohio | 27 | 1,581 | 0.2 | 13.4 |
| Minnesota | 3 | 1,538 | 0.1 | 26.8 |
| New Jersey | 6 | 1,513 | 0.1 | 16.3 |
| Maryland | 9 | 1,499 | 0.1 | 24.3 |
| Georgia | 3 | 1,169 | 0.0 | 10.6 |
| Oregon | 0 | 1,143 | 0.0 | 27.0 |
| Connecticut | 0 | 1,114 | 0.0 | 30.8 |
| Missouri | 3 | 911 | 0.0 | 14.7 |
| Indiana | 9 | 838 | 0.1 | 12.2 |
| Arizona | 4 | 841 | 0.1 | 11.3 |
| Tennessee | 3 | 795 | 0.0 | 11.2 |
| Wisconsin | 6 | 728 | 0.1 | 12.3 |
| Kentucky | 5 | 714 | 0.1 | 15.8 |
| Hawaii | 0 | 640 | 0.0 | 44.6 |
| District of Columbia | 8 | 564 | 1.2 | 83.1 |
| Kansas | 1 | 549 | 0.0 | 18.7 |
| Rhode Island | 1 | 510 | 0.1 | 46.5 |
| South Carolina | 1 | 446 | 0.0 | 8.3 |
| Utah | 0 | 437 | 0.0 | 12.8 |
| Alabama | 3 | 400 | 0.1 | 7.8 |
| Louisiana | 1 | 373 | 0.0 | 8.2 |
| New Mexico | 2 | 366 | 0.1 | 17.3 |
| Nevada | 4 | 346 | 0.1 | 10.8 |
| Vermont | 2 | 311 | 0.3 | 48.0 |
| Maine | 2 | 295 | 0.1 | 21.1 |
| New Hampshire | 1 | 292 | 0.1 | 20.8 |
| Arkansas | 5 | 278 | 0.2 | 9.1 |
| West Virginia | 0 | 251 | 0.0 | 14.2 |
| Oklahoma | 1 | 248 | 0.0 | 6.1 |
| Nebraska | 9 | 232 | 0.5 | 11.7 |
| Iowa | 2 | 212 | 0.1 | 6.6 |
| Idaho | 2 | 195 | 0.1 | 9.9 |
| Montana | 2 | 171 | 0.2 | 15.1 |
| Delaware | 2 | 168 | 0.2 | 16.3 |
| Mississippi | 2 | 165 | 0.1 | 5.6 |
| Alaska | 1 | 129 | 0.1 | 17.6 |
| North Dakota | 6 | 118 | 0.8 | 15.1 |
| South Dakota | 0 | 103 | 0.0 | 11.2 |
| Wyoming | 0 | 100 | 0.0 | 17.1 |
Source: CMS NPPES (NPPES files on CMS.gov), primary NUCC taxonomy by practice state; 2023 population estimates (census.gov).
Common questions
How many Adult Development & Aging Psychologist providers are there vs Clinical Psychologist?
There are 287 Adult Development & Aging Psychologist and 69,391 Clinical Psychologist records in the CMS NPPES registry, counted by primary taxonomy.
Which specialty is spread across more states?
Clinical Psychologist has records in 56 states and territories, against 45.
Where is the data from?
Provider counts are from the CMS National Plan and Provider Enumeration System (NPPES). Per-capita rates use 2023 Census population estimates.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of the NPPES file of Aug 9, 2026.