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Clinical Neuropsychologist: how many are there, and how many are in private practice?

Clinical Neuropsychologists are clinical psychologists who apply scientific knowledge about brain and behavior to assess and address problems involving normal and abnormal central nervous system functioning. This page summarizes active U.S. NPI records with Clinical Neuropsychologist as the primary NUCC taxonomy, reports the sole-proprietor share, and provides state and recent enumeration views. These measures describe NPI records rather than a complete census of clinicians or practices.

National totals

Active NPI records7,297
Registered sole proprietors2,454 (33.6%)
NUCC taxonomy code103G00000X
GroupingBehavioral Health & Social Service Providers

What this specialty covers

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

Reading the sole-proprietor share

For Clinical Neuropsychologist records, the sole-proprietor share is the portion of active records whose NPPES record is flagged as a sole proprietorship. This flag is a self-reported NPPES field and an imperfect proxy for private practice, because it does not fully describe employment arrangements, group practices, or other practice structures.

By state

StateActive NPIsSole proprietorsShare
California94444246.8%
New York55227349.5%
Florida53017933.8%
Texas47314831.3%
Massachusetts43818041.1%
Pennsylvania3238626.6%
Illinois32210332.0%
Michigan2285323.2%
New Jersey2148941.6%
Arizona1934121.2%
North Carolina1815530.4%
Colorado1804826.7%
Maryland1735028.9%
Georgia1695230.8%
Connecticut1625433.3%
Washington1624829.6%
Minnesota1611710.6%
Ohio1583924.7%
Virginia1565132.7%
Wisconsin1131412.4%
Tennessee1072725.2%
Indiana1042322.1%
Oregon1004040.0%
Missouri871213.8%
Rhode Island772127.3%
New Mexico711926.8%
Kentucky671420.9%
Louisiana561933.9%
Utah502040.0%
Maine501530.0%
Arkansas481531.2%
Oklahoma47<11not reported
Alabama461634.8%
South Carolina461634.8%
Iowa43<11not reported
District of Columbia431432.6%
Nevada431330.2%
New Hampshire401640.0%
Hawaii371437.8%
Idaho361952.8%
Nebraska35<11not reported
Alaska29<11not reported
Kansas27<11not reported
Montana24<11not reported
Delaware21<11not reported
West Virginia19<11not reported
Vermont19<11not reported
Mississippi18<11not reported
North Dakota15<11not reported
South Dakota13<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2016235
2017204
2018191
2019182
2020184
2021197
2022181
2023155
2024188
2025187

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions

How many clinical neuropsychologists are there in the United States?

There are 7,297 active NPI records nationally with Clinical Neuropsychologist as the primary taxonomy. This is a count of records, not necessarily a count of unique clinicians.

How many clinical neuropsychologists are in private practice?

NPPES flags 2,454 records, or 33.6%, as sole proprietors. This is not a direct count of clinical neuropsychologists working in private practice.

Which states have the most clinical neuropsychologists?

The largest counts are in California with 944, New York with 552, Florida with 530, Texas with 473, and Massachusetts with 438.

How many clinical neuropsychologist NPIs were first enumerated in recent years?

NPIs first enumerated in the available full years totaled 155 in 2023, 188 in 2024, and 187 in 2025.

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