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Los Angeles County · NAICS 621 · Updated September 2026 · By Alfonso Aduna, MBA

Retirement plans for ambulatory health care practices in Los Angeles County

26,872 establishments — the second-largest industry count on this site — and the plan coverage inside that number drops off sharply the further you get from a physician's office.

The short answer

Ambulatory health care is the parent sector: physicians and dentists at one end, and physical therapy, chiropractic, optometry, imaging, urgent care, dialysis, behavioral health and home health at the other. LA County reports 26,872 such establishments. The allied-health half is where the mandate actually bites — low plan coverage, part-time and per-diem staffing, and owners who are clinicians rather than administrators.

Where do ambulatory health care practices cluster in Los Angeles County?

The allied-health map is not the hospital map. Home health and non-medical home care concentrate heavily in the San Gabriel Valley — Arcadia, Rosemead, El Monte, Temple City — and in Glendale, which carries one of the densest agency clusters in the state, much of it serving and staffed by the county's Armenian community. Dialysis clinics follow population rather than prestige, which puts them across the southeast county and South LA. Urgent care sits in retail centers on the same corners as the pharmacies. Imaging and surgery centers ring the hospital campuses in Beverly Hills, Pasadena, Long Beach and Torrance.

Two sub-sectors deserve naming because they are growing fastest and are staffed worst for plan purposes. Applied behavior analysis providers — autism services — employ large rosters of behavior technicians on fifteen to twenty-five hours a week, spread across client homes from Whittier to the West Valley, who never gather in one building. And physical therapy and chiropractic clinics run one or two licensed clinicians alongside aides and front-desk staff, frequently in two or three locations under one owner. Both produce a census that punishes lazy eligibility drafting.

One distinction worth stating plainly, because it confuses people every year: In-Home Supportive Services providers are not your employees. LA County runs the largest IHSS program in California, and an IHSS provider is generally treated as employed by the consumer with the county acting as payer. If you also operate a licensed home care organization on the side, those aides are yours and they count. Keep the two rosters separate before you file anything.

29,386
ambulatory health care practices establishments in Los Angeles County.
Source: Census County Business Patterns 2022, NAICS 621
$11,250
first-cycle penalty exposure for a 15-person shop that ignores its notices — then $7,500 every year after.
Source: Cal. Gov. Code § 100033(b)
92
LA County cities and communities with their own CalSavers page on this site.
Aduna Capital, August 2026

What does CalSavers require of a LA County ambulatory health care practice employer?

The same thing it requires everywhere in California, and every deadline has already passed. If you have one or more W-2 employees, you must either register with CalSavers or sponsor a qualified retirement plan and certify an exemption.

EmployeesDeadlineWhere you stand in 2026
1–431 December 2025First notices are going out to this group now
5–4930 June 2022Confirm you are on file; watch for FTB notices
50–9930 June 2021Confirm, and revisit whether a 401(k) now fits better
100+30 September 2020Review plan design and fiduciary coverage

Registration is free and the employer never touches the money. The exemption route is the one most ambulatory health care practices miss: sponsoring your own plan does not exempt you automatically — you have to certify it, and the certification repeats.

What does ignoring it cost?

$250 per eligible employee at 90 days past notice, another $500 at 180 days, then $500 per employee every year you stay non-compliant (the full mechanics). For a 15-person operation that is $11,250 in the first cycle and $7,500 a year after — more than a plan would cost. If a notice has already landed, the 90-day FTB appeal window closes permanently at the final notice: read this before you file anything.

A notice already arrived?

Fifteen minutes on the phone and you will know exactly where you stand and what to do this week. No charge, no obligation, no product pitch.

What makes this industry harder than the mandate assumes?

The law treats every employer alike. The payroll underneath does not cooperate:

  • Part-time and per-diem staffing is the operating model, not an exception, so eligibility tracking is a continuous task rather than an annual one.
  • Plan coverage inside the sector is lopsided: physician and dental offices mostly have something, while PT, chiropractic, optometry, behavioral health and home health mostly do not.
  • Owners are clinicians who treat patients all day, so anything adopted has to run off the payroll file without human intervention.
  • Home health and behavioral health agencies carry large dispersed rosters whose hours swing week to week, and whose staff never assemble in one room for an enrollment meeting.
  • Multi-site operators — a clinic here, an imaging suite there, each in its own LLC — trip controlled-group rules they have never heard of.

Typical headcount in this sector runs 3-40 employees, and roughly 50-65% of practices (est.) currently sponsor a plan of any kind — which is why the mandate lands here harder than in sectors that were already covered.

What plan design actually works?

Eligibility is the whole design in this sector. A one-year, 1,000-hour service condition keeps short-tenure aides and low-hour technicians out of the plan — subject to the long-term part-time rules, which now grant deferral rights after consecutive 500-hour years and catch more part-time clinical staff than owners expect. Pair it with automatic enrollment, because on this wage scale a voluntary plan holds almost nothing and weak participation is exactly what caps the owner through testing. The SECURE 2.0 auto-enrollment credit may sit on top of the startup credit.

For a small clinic with two staff and modest owner income, CalSavers may honestly be enough, and we will say so rather than sell past it. The line moves once the owner clears the Roth phase-out or the headcount clears about ten, because at that point the penalty arithmetic and the owner's own deferral both start pointing the other way. Physician and dental owners, whose problem is testing and contribution room rather than first-time adoption, are better served by the physician page for this county or the dental one.

The SECURE 2.0 startup credits often cover most of the first three years of administration for employers under 50 staff — the formula, worked honestly. And if after the arithmetic CalSavers is genuinely the cheaper answer for your shop, we will tell you so and you can register and be done: the full comparison · run your own numbers.

 CalSavers401(k)
Employee deferral limit (2026)$7,500$24,500
Employer match permittedNo — prohibitedYes
Owner above the Roth income limits can participateNoYes
SECURE 2.0 startup credits$0Up to $5,000/yr × 3 yrs
Named fiduciary availableNoYes — 3(38) or 3(21)

The LA County wrinkle

The LA County wrinkle is licensure geography. Non-medical home care agencies operate as Home Care Organizations licensed by the state's Home Care Services Bureau, with each aide separately listed on the Home Care Aide Registry — and the county holds a very large share of those licences. That regime creates a roster of registered aides that looks official and complete, which owners then mistake for a payroll file. It is not one. The mandate counts W-2 employees, and the registry counts registered aides; the two lists overlap without matching, and reconciling them is genuinely the first task before registration or exemption.

Underneath that sits the same city-level compliance load every LA employer carries and no Orange County employer does: local wage ordinances in Los Angeles, Santa Monica, Pasadena, Long Beach and West Hollywood, and a City of Los Angeles business tax registration on top. A clinic owner running three sites across two of those cities is already tracking two wage schedules. The state retirement notice goes into that pile and stays there.

Los Angeles County has 88 incorporated cities and about 9.7 million residents, and the enforcement letters go out by employer, not by city — but which city you are in changes who your neighbours are, what your labor market looks like, and often what your local business tax and licensing burden already is. The city pages below go into that.

CalSavers compliance, city by city

Where ambulatory health care practices concentrate in Los Angeles County:

All Los Angeles County CalSavers guidance → · The ambulatory health care practices plan guide, statewide → · The same industry in Orange County →

Our fees, published

No competing advisor page in this area publishes its fees. Here are ours.

WhatFee
Investment management1.5% to 2.0% of assets per year; Advisers may set a rate below the standard schedule, as low as 0%, at their discretion — and whatever rate applies to you is disclosed in writing before you engage. Our Form ADV Part 2A, Item 5, states the fee as up to 2.00% of assets per year, subject to negotiation; the firm may waive all or part of it. Generally billed quarterly in arrears
Account minimumNo minimum account balance
Commissions and product feesNone — we are fee-only
Solicitor compensationMay be received or paid under disclosed arrangements
Initial conversationFree, 15 minutes, no obligation

Complete fee details in our Form ADV Part 2A, Item 5.

LA County ambulatory health care practices questions

I run a home care agency and my aides are on the state registry. Are they my employees for CalSavers?

If you issue them a W-2, yes, regardless of what the registry says. Registration as a home care aide is a licensing status, not an employment classification, and the two lists are maintained for different purposes. Reconcile your registry roster against your actual payroll before you register or certify anything, because the headcount you report has to match the payroll, not the licence file.

My behavior technicians work about eighteen hours a week. Do they have to be covered?

For CalSavers, yes — every W-2 employee 18 or older, no hours threshold. For a private 401(k), not necessarily for employer contributions if you impose a 1,000-hour condition, but eighteen hours a week is roughly 900 hours a year, which clears the 500-hour long-term part-time threshold easily. They will earn the right to defer after consecutive qualifying years. Design the plan expecting them in it rather than hoping they stay out.

We have a PT clinic and an imaging suite in separate LLCs with the same two owners. One plan or two?

Common ownership at those levels almost certainly makes them a controlled group, which means they are generally treated as one employer for coverage, nondiscrimination and the mandate's headcount. That is usually good news — one plan across both is cheaper and simpler than two — but it has to be established by counsel reading your actual ownership documents before the plan is drafted. A coverage failure found three years later is corrected retroactively.

Does the 26,872 figure include dentists and physicians?

Yes. NAICS 621 is the parent sector, and the count includes physician offices, dental offices and the allied-health practices this page is mainly about. That is also why neither the dental nor the physician page for this county quotes a separate number — Census does not publish one, and we are not going to estimate it. Use this page for PT, chiropractic, optometry, imaging, urgent care, behavioral health and home health.

Do you actually work with ambulatory health care practices in Los Angeles County?

Yes. Our office is at 12838 Rosecrans Ave in Norwalk — inside Los Angeles County, and about a 20-minute drive from most of Los Angeles County's business corridors. We meet at our office or at your place of business. Call (657) 571-2607. We are registered as an investment adviser in California.

¿Atienden en español?

Sí. Atendemos en español y nuestro material sobre CalSavers existe en español, escrito originalmente, no traducido por máquina.

Educational information, not legal or tax advice. Establishment counts are from Census County Business Patterns (most recent published by-industry figures); county population and city counts are from the California Department of Finance. Confirm your CalSavers obligations at (855) 650-6916 and with your CPA, and consult ERISA counsel on plan design. Aduna Capital LLC is not affiliated with CalSavers, the California State Treasurer's Office, or the California Hospital Association, the California Association for Health Services at Home, or any hospital, health system, clinic or agency named on this page. Aduna Capital is registered as an investment adviser in California and works from its principal office in Norwalk.

A plan designed around ambulatory health care practices in LA County — not around the average employer

We design around the census you actually have — turnover, seasonality, owner compensation and all. Fifteen minutes, no charge, and a straight answer either way.