The Maine Mental Health Workforce
Maine has 9,452 active mental-health providers registered at practice addresses in the state, or 668 per 100,000 residents. That ranks 6 of 51 nationally, against a US average of 433.5.
9,452
active providers
668
per 100,000 residents
#6
of 51 jurisdictions by density
Key findings
- Maine registers 668 active providers per 100,000 residents. That ranks 6 of 51 jurisdictions, above the national 433.5. #
- Cumberland County has the state's highest registered density (1020.6 per 100k). #
- Social workers are the largest group at 44.9% of Maine's registered workforce, compared with 30.4% nationally. #
- 377 providers with a Maine practice address first entered the NPI registry in 2025, versus 330 in 2019. These are registry entries, not licenses issued. #
- 57% of Maine providers share a registered practice location with six or more in-scope providers. #
Providers per 100,000 by county
Providers are allocated to counties from their practice ZIP code. The same values appear in the table.
| County | Population | Providers | Per 100k |
|---|---|---|---|
| Cumberland County | 317,222 | 3,238 | 1020.6 |
| Penobscot County | 157,967 | 1,216 | 770.1 |
| York County | 222,434 | 1,175 | 528.4 |
| Kennebec County | 129,067 | 902 | 698.9 |
| Androscoggin County | 116,487 | 683 | 586.3 |
| Aroostook County | 66,609 | 498 | 746.9 |
| Hancock County | 57,171 | 300 | 524 |
| Knox County | 41,117 | 282 | 685.8 |
| Washington County | 31,334 | 241 | 770.5 |
| Oxford County | 60,346 | 213 | 352.3 |
| Somerset County | 51,620 | 173 | 335.2 |
| Waldo County | 40,693 | 155 | 380.7 |
| Franklin County | 30,824 | 116 | 374.8 |
| Sagadahoc County | 37,979 | 107 | 281.7 |
| Lincoln County | 36,595 | 99 | 270.5 |
| Piscataquis County | 17,409 | 50 | 287.2 |
Provider-type mix vs the national picture
Each provider counts once under their primary taxonomy; the US share is printed beside each Maine figure for comparison.
When Maine's providers entered the registry
This chart shows active providers by the year they entered the NPI registry. Registry entry is not licensure. Clinicians typically register when they start billing, so this measures registrations, not the workforce itself. 2026 is a partial year.
Practice-location size
This shows the share of Maineproviders at single- and multi-provider practice locations, grouped by normalized practice address. It's only a proxy, so see the limitations below.
Get the numbers
County-level figures for all states (including Maine) are in the county CSV; state totals and mix are in their own files. Everything is CC BY 4.0, so cite certification.app, "US Mental Health Workforce" (June 2026 NPPES snapshot).
Use this chart
<a href="https://www.certification.app/data/mental-health-workforce"><img src="https://www.certification.app/data/mental-health-workforce/charts/me-county-density.svg" alt="Maine mental health providers per 100,000 residents by county" width="100%" /></a> <p style="font-size:12px">"Maine mental health providers per 100k by county, June 2026 snapshot" by <a href="https://www.certification.app/data/mental-health-workforce">certification.app</a>, CC BY 4.0</p>
Reading these numbers
Counts are NPPES registrations at Mainepractice addresses. They are headcounts, not FTEs or license tallies. Telehealth and multi-state practice don't show up, a self-designated taxonomy isn't license verification, and the registry lags behind moves and retirements. The methodology page has the details.