The Massachusetts Mental Health Workforce
Massachusetts has 67,140 active mental-health providers registered at practice addresses in the state, or 938.5 per 100,000 residents. That ranks 3 of 51 nationally, against a US average of 433.5.
67,140
active providers
938.5
per 100,000 residents
#3
of 51 jurisdictions by density
Key findings
- Massachusetts registers 938.5 active providers per 100,000 residents. That ranks 3 of 51 jurisdictions, above the national 433.5. #
- Hampshire County has the state's highest registered density (1421.2 per 100k). #
- Counselors are the largest group at 45.4% of Massachusetts's registered workforce (US: 43.9%). #
- 3,036 providers with a Massachusetts practice address first entered the NPI registry in 2025, versus 2,754 in 2019. These are registry entries, not licenses issued. #
- 70% of Massachusetts 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 |
|---|---|---|---|
| Middlesex County | 1,669,979 | 14,710 | 880.8 |
| Suffolk County | 791,891 | 11,094 | 1400.9 |
| Essex County | 826,653 | 6,925 | 837.7 |
| Norfolk County | 739,749 | 6,591 | 891 |
| Worcester County | 888,502 | 6,557 | 738 |
| Hampden County | 464,338 | 6,203 | 1335.9 |
| Bristol County | 593,640 | 4,309 | 725.8 |
| Plymouth County | 546,829 | 4,278 | 782.3 |
| Hampshire County | 164,065 | 2,332 | 1421.2 |
| Barnstable County | 233,539 | 1,564 | 669.5 |
| Berkshire County | 128,224 | 1,463 | 1140.9 |
| Franklin County | 70,698 | 833 | 1178.3 |
| Dukes County | 21,219 | 152 | 716.3 |
| Nantucket County | 14,758 | 77 | 521.8 |
Provider-type mix vs the national picture
Each provider counts once under their primary taxonomy; the US share is printed beside each Massachusetts figure for comparison.
When Massachusetts's providers entered the registry
Active providers by NPI registry-entry year. 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
Share of Massachusetts providers at single- vs multi-provider practice locations, by normalized practice address. This is a proxy; see the limitations below.
Get the numbers
County-level figures for all states (including Massachusetts) 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/ma-county-density.svg" alt="Massachusetts mental health providers per 100,000 residents by county" width="100%" /></a> <p style="font-size:12px">"Massachusetts 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 Massachusetts practice addresses. They are headcounts, not FTEs or license tallies. Telehealth and multi-state practice are invisible; taxonomy self-designation is not license verification; the registry lags moves and retirements. Details: methodology.