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Peer Specialist: how many are there, and how many are in private practice?

Peer Specialists are individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department or certification or licensing authority. This page reports active US NPI records using NUCC taxonomy 175T00000X as their primary classification, the share marked as sole proprietors in NPPES, state concentrations, and recent enumeration totals.

National totals

Active NPI records28,513
Registered sole proprietors8,792 (30.8%)
NUCC taxonomy code175T00000X
GroupingOther Service Providers

What this specialty covers

Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

Reading the sole-proprietor share

For Peer Specialists, the sole-proprietor share describes the portion of active records whose NPPES enrollment identifies the individual as a sole proprietor, not a direct count of people working in private practice. Because the field is self-reported and NPI records do not fully describe employment, contracting, or organizational arrangements, use it as an imperfect proxy rather than a definitive measure of private practice.

By state

StateActive NPIsSole proprietorsShare
Oklahoma4,8231,75636.4%
California3,25096229.6%
Oregon3,21572322.5%
Ohio2,7921,54955.5%
Washington2,30939016.9%
Kentucky1,79789549.8%
Michigan1,59546329.0%
New York1,40630421.6%
West Virginia82631738.4%
Colorado6038113.4%
Alaska529458.5%
New Mexico47310121.4%
Utah45212627.9%
Louisiana4269321.8%
New Jersey3677921.5%
North Carolina29412040.8%
Massachusetts2715821.4%
North Dakota2683211.9%
Nevada2205223.6%
Idaho2084320.7%
Pennsylvania1903618.9%
Missouri1772212.4%
Florida1595836.5%
Nebraska1573824.2%
Tennessee1442013.9%
Illinois1123228.6%
South Carolina1081312.0%
Texas1065047.2%
Georgia1054341.0%
Arizona1013130.7%
Virginia984950.0%
New Hampshire94<11not reported
Mississippi872427.6%
Indiana842631.0%
Wyoming82<11not reported
Minnesota791316.5%
District of Columbia723143.1%
Maryland581932.8%
Wisconsin571729.8%
Delaware501632.0%
Montana41<11not reported
Arkansas39<11not reported
Vermont35<11not reported
Hawaii33<11not reported
Iowa29<11not reported
Alabama26<11not reported
Kansas24<11not reported
Rhode Island22<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2017913
20181,487
20191,936
20201,942
20212,481
20223,689
20234,367
20244,760
20255,171
2026 (partial year)115

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 Peer Specialists are there in the US?

There are 28,513 active NPI records nationally with Peer Specialist as the primary taxonomy.

How many Peer Specialists are in private practice?

NPPES flags 8,792 records, or 30.8%, as sole proprietors. This is an imperfect proxy for private practice because the field is self-reported.

Which states have the most Peer Specialists?

The largest state counts are Oklahoma with 4,823, California with 3,250, Oregon with 3,215, Ohio with 2,792, and Washington with 2,309.

How many Peer Specialist NPIs were first enumerated in recent years?

The counts were 4,760 in 2024, 5,171 in 2025, and 115 in 2026.

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