Outpatient Mental Health and Substance Abuse Centers (U.S.)

NAICS 2022 code 62142 — an investor's primer (industry rollup)

Short page — pass-through level. NAICS — the North American Industry Classification System, the federal scheme for sorting businesses — is a nested hierarchy. This five-digit industry, 62142, contains a single six-digit national industry, 621420, of the same name. At this level the two are effectively identical: every establishment, dollar and worker counted under 62142 is the same one counted under 621420. This page gives the rollup figures and the essentials; for full detail — the investable universe, unit economics, regulation, consolidation and risks — see the 621420 primer.

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1. Overview

62142 is the network of clinics and centers that treat mental illness and addiction without an overnight stay: community mental-health and counseling centers, group therapy and psychiatry clinics, methadone and buprenorphine ("opioid treatment") programs, and fast-growing tele-therapy platforms. As a distinct slice of health care it is a professional-services business — revenue is visits times reimbursement, and the scarce input is licensed clinicians, not hard assets or consumer brands.

Because the five-digit industry has exactly one six-digit child, there is nothing to aggregate: 62142 equals 621420. The distinction is purely a level in the classification tree, kept here so the taxonomy is complete.

Why it matters to an investor: demand is large, under-served and structurally growing (about 61.5 million U.S. adults had a mental illness in 2024, and only around half received treatment) [6], while payment is shifting toward parity with physical health [7]. It is also one of the most fragmented corners of health care — the four largest firms hold under 4% of revenue [2] — which has made it a magnet for roll-ups and, lately, for regulatory scrutiny of those roll-ups.

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2. What's inside — and why this level equals its one child

The 2022 NAICS structure places a single national industry under 62142:

Because there is no second child to combine, the rollup adds nothing to the leaf: the same four business types make up both levels — (1) community mental-health and counseling centers; (2) outpatient substance-use / opioid treatment programs (OTPs), the methadone and medication-assisted-treatment clinics; (3) multi-site for-profit psychiatry/therapy groups blending in-person and virtual care; and (4) virtual behavioral-health platforms billed to insurance [3]. The 621420 primer covers each in full.

What sits just outside (and why federal counts here understate the broader "mental-health economy"): solo psychiatrists fall under NAICS 621112, and independent psychologists, social workers and licensed counselors under NAICS 621330 — and much U.S. outpatient therapy is delivered by those independent practitioners. Inpatient psychiatric/substance hospitals (622210) and residential rehab (623220) are separate again [3]. So 62142 captures only the "center/clinic" slice of outpatient behavioral health.

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3. How big it is (this level's rollup)

Ground-truth U.S. federal statistics for NAICS 62142 — identical to 621420, as expected for a single-child level:

The Herfindahl-Hirschman Index is a standard concentration gauge; 9.2 against a 10,000 maximum is among the lowest in all of health care. Derived from the figures above: roughly 1.7 establishments per firm and about 19 employees per establishment; mixing vintages (2022 receipts against 2023 counts) implies on the order of $1.8 million of revenue per establishment, with payroll near 57% of receipts — a labor-intensive, small-business-heavy industry. Under the U.S. Small Business Administration (SBA) size standard for this industry — $19 million in annual receipts — nearly every operator qualifies as a small business [5].

Read these as two snapshots, not one income statement — receipts are 2022, employment and payroll 2023.

Undercount caveats (important):

• CBP excludes the self-employed and most government employees; the Economic Census generally excludes government-owned establishments and nonemployer (no-payroll) businesses [4]. Government-run county and state clinics — a large share of actual public mental-health delivery — are largely captured under government accounts, not here, so the true public footprint of outpatient behavioral care is bigger than $30.6 billion suggests. And because ownership skews toward small, often individually owned or nonprofit operators, the payroll-based counts miss the long tail.
• Because solo psychiatrists (621112) and independent therapists (621330) sit in adjacent codes [3], broader "behavioral-health market" estimates that run to $140 billion-plus fold in those codes plus inpatient and residential care and are not comparable to 62142.
• Our ground-truth file for 62142 supplies no patient volume, profit, payer mix or government-provider totals — so those are not inferred here.

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4. Investable universe — where value concentrates

Because 62142 is its one child, value concentrates exactly where it does in 621420: mostly in private hands, with a few imperfect public proxies. Tickers and figures are covered in full in the child primer; in brief:

• Public (few, imperfect): outpatient pure-play LifeStance Health (LFST) is the cleanest listed proxy for the insurance-billed outpatient model; Acadia Healthcare (ACHC) and Universal Health Services (UHS) add diversified behavioral exposure weighted to inpatient/residential; virtual-therapy platform Talkspace (TALK) is being taken private by UHS. There is no dedicated exchange-traded fund [10][9][11].
• Private (dominant): private-equity-backed clinic and addiction chains (e.g., BayMark, the largest U.S. opioid-treatment operator, 400+ facilities [12]), nonprofit and county providers, and venture-funded digital marketplaces (Headway, Grow Therapy, Rula, Talkiatry) that credential independent clinicians into insurance networks [13].

Takeaway: to own the outpatient mental-health theme in public markets, LFST is the pure-play and ACHC/UHS the diversified routes; to own the addiction-treatment or digital-marketplace theme, you are largely in private markets. See 621420 for the full roster and figures.

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5. How the money works

One identity, unchanged from the child: revenue = completed visits (or treatment episodes) × net reimbursement per service, earned across a payer mix — commercial insurers, Medicaid, Medicare, self-pay, employer contracts and government grants — against a cost base dominated by clinician pay. The levers, in brief: payer mix is destiny (Medicaid is the single largest payer of behavioral health, and pays least per visit while commercial pays most); clinician productivity and retention cap output in a country where roughly 157 million people live in a mental-health workforce-shortage area [7]; clinic contribution margin after clinician comp and facility cost is the key unit number; and OTP clinics run a distinct recurring, daily-dosing model. The full mechanics — watch-list metrics, marketplace economics — are in the 621420 primer.

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6. Demand drivers

• Prevalence and the treatment gap. In 2024 about 61.5 million adults (23.4%) had any mental illness, while only about half received treatment — the untreated majority is the structural growth runway [6].
• The overdose/opioid epidemic sustains demand for medication-assisted treatment and OTP services.
• Workforce shortage sets the cap. Growth is often gated by hiring, not need: HRSA (Health Resources and Services Administration) listed thousands of mental-health shortage areas covering some 157 million people [7].
• Coverage, parity and telehealth normalization push more care into billable, insured settings and lower the friction of a first appointment [7].

Net: demand is large, recession-resistant (behavioral-health need does not fall in downturns) and supply-constrained — attractive, but tempered by heavy reliance on government payers.

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7. Regulation

Identical to the child level — a heavily licensure-gated industry. The main layers: state facility, clinician and telehealth licensing; Medicaid/Medicare and commercial payer enrollment; federal mental-health parity (the Mental Health Parity and Addiction Equity Act, MHPAEA) [7]; privacy rules (HIPAA — the Health Insurance Portability and Accountability Act — plus the stricter 42 CFR Part 2 for substance-use records); OTP certification under 42 CFR Part 8 with Drug Enforcement Administration (DEA) registration; the recurring "telehealth cliff" on controlled-substance tele-prescribing; the Certified Community Behavioral Health Clinic (CCBHC) funding model; corporate-practice-of-medicine rules that push private-equity ownership into management-services structures; and fraud-and-abuse enforcement (the False Claims Act and Anti-Kickback Statute). Specifics, dates and citations are in the 621420 primer.

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8. Consolidation

The defining feature is extreme fragmentation — a CR4 of 3.8% and an HHI of 9.2 [2], among the lowest in health care — yet competition is local and payer-specific. That gap between a national field of ~9,600 firms and a handful of scaled operators is exactly what has drawn roll-ups: private equity and public operators buying solo practices and OTPs to build regional scale. Peer-reviewed work found private-equity-backed deals were the majority of behavioral-health acquisition activity studied over 2010–2021 [13]. Countervailing forces now include payer–provider convergence (insurers building or buying provider arms), digital marketplaces as a new distribution layer, and rising government scrutiny of private-equity-owned addiction chains [14]. Full detail — the roll-up playbook, its failure modes, and the shift toward payer-integrated and value-based models — is in the child primer.

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9. Risks

Same risk stack as 621420: reimbursement and Medicaid risk (rate cuts, narrowed networks, prior authorization, budget pressure hit the top line directly); labor risk (a structural clinician shortage caps capacity and drives wage inflation [7]); regulatory/political risk (scrutiny of PE-owned OTPs [14], uncertain parity enforcement, annually renewed telehealth-prescribing flexibilities); billing and False Claims Act exposure; privacy/cyber risk on especially sensitive records; and consolidation/leverage risk in debt-financed roll-ups. Note too a measurement risk specific to using these numbers: federal business statistics omit government-run and nonemployer providers [4], so market-size and share estimates built on 62142 alone understate the real footprint. Demand is defensive; revenue, funded heavily by public budgets, is policy-cyclical rather than economy-cyclical.

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10. How to invest & outlook

Because 62142 is its one child, the how-to-invest picture is 621420's: for a focused public bet on insurance-billed outpatient mental health, LifeStance (LFST) is the pure-play, with Acadia (ACHC) and UHS as diversified routes (UHS adding virtual outpatient via the pending Talkspace deal) — and no dedicated ETF, so broad public exposure comes only as a slice of health-care-services funds [8][9][10]. Most of the industry, though, lives in private markets: platform buyouts and add-on practice acquisitions, growth equity, direct lending, health-care real estate, enabling software, and venture stakes in the digital marketplaces [13].

Our outlook: demand fundamentals are unusually durable — high need, constrained clinician supply, and outpatient care that is cheaper and more accessible than inpatient — and the shift toward parity and virtual access is structurally favorable. But the industry is neither recession-proof nor automatically high-margin. The investable question is less "will demand grow" (it will) than "who captures the economics" — a contest among clinic roll-ups, payer-owned provider arms and asset-light digital marketplaces, all on thin, labor-constrained margins under a policy-sensitive, Medicaid-heavy revenue base. For the complete analysis, read the 621420 primer.

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Sources

1. U.S. Census Bureau, County Business Patterns (CBP): 2023 — NAICS 621420 establishments, employment, annual and Q1 payroll. https://www.census.gov/data/datasets/2023/econ/cbp/2023-cbp.html
2. U.S. Census Bureau, 2022 Economic Census — Concentration of Largest Firms — NAICS 621420 receipts, firm count, CR4/CR8/CR20/CR50, HHI. https://api.census.gov/data/2022/ecnsize/groups/EC2200SIZECONCEN.html
3. U.S. Census Bureau, 2022 NAICS definition — 621420, Outpatient Mental Health and Substance Abuse Centers (scope and cross-references to 621112, 621330, 622210, 623220; single national industry under 62142). https://www.census.gov/naics/?details=621420&input=621420&year=2022
4. U.S. Census Bureau, CBP Methodology and Understanding NAICS / Economic Census coverage (exclusion of self-employed, government, and nonemployer businesses). https://www.census.gov/programs-surveys/cbp/technical-documentation/methodology.html; https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html
5. U.S. Small Business Administration, Table of Size Standards, 2023 — NAICS 621420, $19 million receipts. https://www.sba.gov/document/support-table-size-standards
6. Substance Abuse and Mental Health Services Administration (SAMHSA), 2024 National Survey on Drug Use and Health (NSDUH), 2025 — mental-illness prevalence and treatment gap. https://www.samhsa.gov/newsroom/press-announcements/20250728/samhsa-releases-annual-national-survey-on-drug-use-and-health
7. Health Resources and Services Administration (HRSA), Health Professional Shortage Areas (HPSA) Statistics; and CMS, Mental Health Parity and Addiction Equity Act (MHPAEA) overview. https://data.hrsa.gov/Default/GenerateHPSAQuarterlyReport/; https://www.cms.gov/marketplace/private-health-insurance/mental-health-parity-addiction-equity
8. LifeStance Health, FY2025 results and Form 10-K (FY2025 revenue ~$1.42 bn; 8,040 clinicians; ~9.0 M visits; 550+ centers). https://investor.lifestance.com/news-releases/news-release-details/lifestance-reports-fourth-quarter-and-full-year-2025-results
9. Acadia Healthcare, 2025 Form 10-K and FY2024/Q1 2026 results (277 facilities; 165 Comprehensive Treatment Centers/OTPs in scope). https://www.sec.gov/Archives/edgar/data/1520697/000119312526078266/achc-20251231.htm
10. Universal Health Services, 2025 Form 10-K (346 behavioral-health facilities incl. 119 outpatient) and UHS to Acquire Talkspace announcement. https://www.sec.gov/Archives/edgar/data/352915/000119312526071676/uhs-20251231.htm; https://www.prnewswire.com/news-releases/universal-health-services-inc-to-acquire-talkspace-inc-302708096.html
11. Talkspace, Stockholders Vote to Approve Acquisition by UHS (May 2026; close expected Q3 2026). https://talkspace.gcs-web.com/news-releases/news-release-details/talkspace-stockholders-vote-approve-acquisition-uhs
12. BayMark Health Services, About Us — largest U.S. opioid-treatment provider, 400+ facilities across 35 states. https://baymark.com/about-us/
13. Sacra / Behavioral Health Business / Health Affairs, Digital behavioral-health marketplaces (Headway, Grow, Rula, Talkiatry) and private-equity acquisition activity, 2010–2021. https://sacra.com/c/headway/; https://doi.org/10.1093/haschl/qxae080
14. Behavioral Health Business / U.S. Senate, Private-equity ownership of opioid treatment programs and 2024–25 congressional inquiries. https://bhbusiness.com/2024/03/19/nearly-one-third-of-otps-are-owned-by-private-equity-firms/; https://www.markey.senate.gov/news/press-releases/senators-markey-braun-push-opioid-treatment-programs-for-answers-on-private-equity-investments