Treatment Plan Frequency: How Often is Enough?

What insurance and licensing requirements say, and what “best practice” really means

There is a lot of misinformation floating around about how often therapists are required to write treatment plans. So, I’m going to clear that up.

Unfortunately, clearing it up may still leave you a little annoyed because the frequency of treatment plans is not neatly codified in one national regulation that applies to every therapist and every insurance company.

Wouldn’t that be nice?

Instead, the answer is nuanced. It depends on the payer, the state, the type of Medicaid program, and sometimes even the Medicare contractor in your geographic area. In other words, you may have to do some local research, which is not what you wanted to hear.

But I’ll make this as simple as possible.

Fair warning: this post is a little longer than my usual blogs. That’s because the answer is more complicated than it should be, and I want you to understand what actually applies to you rather than walk away with another oversimplified rule. My goal is to save you from doing unnecessary paperwork while making sure you’re doing the paperwork that actually matters.

First: There Is No Universal 90-Day Rule

One of the most common things I hear is:

“Insurance requires a new treatment plan every 90 days.”

This is simply not true. Some insurance programs require that. That is very different from saying insurance requires it.

There is no universal federal rule requiring every outpatient mental health therapist to rewrite a treatment plan every three months. The real answer depends on who is paying for the treatment.

So let’s break this down into Medicare, Medicaid, and commercial insurance.

What Does Medicare Require?

This is where things get nuanced because there isn’t one “final answer.”

Apparently, one simple national answer would have been too easy.

CMS expects outpatient psychiatric treatment to be individualized, goal-directed, medically necessary, and periodically evaluated. CMS guidance discusses an individualized written treatment plan that identifies the diagnosis, anticipated goals, and the type, amount, frequency, and duration of services. CMS also requires periodic evaluation of whether treatment is meeting those goals.

But here’s the important distinction:

CMS does not establish one national rule saying that every outpatient psychotherapist in the country must rewrite a treatment plan every 90 days.

CMS also states that there are no specific limits on how long outpatient psychiatric services may be covered. The appropriate duration depends on factors such as the nature of the illness, treatment history, treatment goals, and the client’s response to treatment.

One current Medicare Local Coverage Determination similarly discusses individualized treatment without establishing a universal three-month treatment-plan schedule.

There’s that word: periodic.

CMS gives us a requirement for ongoing evaluation, but not one national treatment-plan frequency that applies to every outpatient therapist.

But your MAC might.

This Is Why You Need to Check Your Medicare Contractor

Here’s where your location enters the picture. Medicare Fee-for-Service is administered regionally by Medicare Administrative Contractors, or MACs, and those contractors can publish more specific documentation guidance.

For example, Palmetto GBA is a Medicare Administrative Contractor serving several states. Its current outpatient psychotherapy billing guidance says updated treatment plans should occur “generally, every three months.”

So if Palmetto is your MAC, that guidance matters to you. If it isn’t, you need to check the guidance from your own MAC.

This is also where I need to clarify something I’ve taught in the past.

If you’ve heard me teach that Medicare requires a yearly treatment plan, I need to clarify that.

I’ve taught yearly treatment plans as the Medicare standard in the past. After digging further into CMS requirements and MAC guidance, I’ve learned that the answer is more nuanced:

There isn’t one national Medicare treatment-plan frequency.

Your MAC may give you more specific guidance. So, check your MAC.

Is that a more annoying answer? Absolutely. It’s also a more accurate one.

So Why Do I Recommend Yearly Treatment Plans?

If you’ve checked the requirements that apply to you and there is no payer rule, state requirement, licensing requirement, contract, provider manual, Medicaid rule, MAC guidance, or other applicable requirement telling you to write a treatment plan more frequently, I recommend writing a comprehensive treatment plan yearly and updating it sooner when there is a meaningful clinical reason to do so.

I don’t make that recommendation because I think treatment plans are unimportant. Quite the opposite. I make it because I think treatment plans should actually mean something.

And insurance audits aren’t the only reason treatment plans matter. They also matter if you ever have to defend your clinical work in response to a licensing board or ethics complaint.

Professional ethics and practice standards generally require adequate clinical records and treatment planning, but they don’t necessarily give us a tidy rule that says, “Rewrite the treatment plan every 90 days.” For example, the ACA Code of Ethics says counselors should develop counseling plans with their clients and regularly review them for continued viability and effectiveness. It doesn’t define “regularly” as every 90 days. NASW’s clinical social work standards similarly include treatment-plan goals as part of clinical documentation.

That’s another reason I don’t want treatment plans to be meaningless paperwork. If someone reviews your work two years later, whether that’s an insurance auditor, a licensing board, or someone investigating an ethics complaint, the treatment plan should help answer some basic questions: What were you treating? What were you trying to accomplish? Why did the treatment you provided make clinical sense?

Treatment plans matter. That doesn’t mean rewriting them every 90 days automatically makes them better.

I’ve consulted with therapists going through insurance audits, and therapists using thoughtful annual treatment plans have successfully passed those audits because their documentation as a whole supported the treatment being provided.

One therapist I consulted with went through a four-year Medicare audit. She wrote a new treatment plan each year. Each plan reflected what had happened during the previous year: the client’s progress, the struggles that remained, and the new goals that logically followed from the work.

She passed the audit 100%, with no questions asked.

Of course, one successful audit doesn’t establish Medicare policy. But it does give us a real-world example of a therapist using yearly treatment plans successfully in a Medicare audit.

More importantly, it illustrates something I teach all the time:

Your documentation needs to tell a coherent clinical story.

Your assessment, treatment plan, progress notes, and documentation of ongoing medical necessity should make sense together. A yearly treatment plan does not override a MAC, payer, state, licensing, or other applicable requirement telling you to update the plan more frequently. My recommendation applies when there isn’t a more specific requirement.

“But Isn’t a Treatment Plan Every Three Months Best Practice?”

Some people will tell you that writing a treatment plan every three months is simply “best practice.”

I disagree.

Sometimes it is best practice. Sometimes it’s just more paperwork.

If you are doing short-term, solution-focused therapy and expect treatment to last three to nine months, then a three-month treatment plan may make perfect sense. If you are following a structured protocol with logical three-month treatment phases, quarterly plans may also make excellent clinical sense.

And, obviously, if your payer requires a treatment plan every three months, then congratulations: you are writing treatment plans every three months whether either of us thinks it’s clinically useful or not. But let’s talk about long-term psychotherapy.

People Are Messy. Treatment Is Not Linear.

Imagine you’re doing long-term trauma treatment. The client has spent decades developing patterns that helped them survive difficult experiences.

And we’re supposed to believe that every 90 days we can neatly say:

Goal achieved. Next goal!

That’s not how people work.

A meaningful psychotherapy goal may take six months, a year, or considerably longer. A client may make tremendous progress for three months and then experience a major loss, relationship rupture, health problem, trauma trigger, or other life event that changes the course of treatment.

They may make progress in one area while struggling more in another. They may understand something intellectually months before they can actually change the behavior.

I have these clients in my practice, and I bet you do too. Because that’s therapy.

Progress doesn’t have to mean completion.

Rewriting essentially the same treatment plan four times a year, with just enough modifications that it doesn’t look cloned, doesn’t automatically improve treatment. Sometimes it simply creates four versions of nearly the same document.

That’s not my definition of best practice.

Here’s my rule:

Follow the requirement when there is one. When there isn’t, the frequency of treatment planning should make clinical sense for the treatment you’re actually providing.

For ongoing, long-term psychotherapy, when there is no requirement telling me otherwise, I recommend a yearly treatment plan.

That doesn’t mean you write the plan and blindly wait 12 months before thinking about it again. A new diagnosis, major change in symptoms, significant change in treatment approach, completion of major goals, or substantial change in the client’s needs may all be reasons to update it sooner.

The treatment plan should change because the treatment changed, not simply because another 90 days passed.

Medicaid Is a Different Animal

If you don’t take Medicaid, you can skip this section. Go ahead. I won’t be offended.

If you do take Medicaid, keep reading because this is where therapists need to be especially careful about generalizations.

Medicaid is a federal-state partnership, and states have substantial flexibility in how Medicaid services are designed and delivered. Behavioral health services may also be delivered through different state programs and Medicaid managed-care organizations.

That means you cannot safely say:

“Medicaid requires treatment plans every X months.”

You need to ask: Which state’s Medicaid program? Which Medicaid plan? Which service? Which provider type? Which population?

This is one reason you may have heard that Medicaid requires treatment plans every 90 days. Quarterly treatment-plan reviews or related reassessments are common in some Medicaid behavioral health programs, but they aren’t one universal national Medicaid rule.

Massachusetts gives us a good example of how specific these requirements can get. Under MassHealth Community Behavioral Health Center requirements, a treatment plan must be completed for a member receiving ongoing treatment by the later of the member’s fourth visit or 30 days after treatment begins.

For members under age 21, a CANS assessment must also be updated at least every 90 days.

Notice something important: the 90-day requirement in that example is for the CANS assessment. It isn’t a universal statement that every MassHealth therapist must rewrite every treatment plan every 90 days. In fact, at the clinic where I supervised for 11 years, we did the CANS every 30 days but wrote treatment plans every six months.

So with Medicaid, check your state’s requirements and your Medicaid managed-care plan’s provider requirements.

Yes, that’s annoying and time-consuming. I didn’t write the system. I just translate the gobbledygook.

What About Commercial Insurance?

Commercial insurance is another area where myths become “rules” after therapists repeat them often enough.

There is no single national commercial-insurance treatment-plan frequency that applies to every BCBS plan, UnitedHealthcare/Optum plan, Aetna plan, Cigna/Evernorth plan, Carelon plan, and every other commercial insurer.

Requirements can come from the member’s plan, your provider agreement, the insurer’s provider manual, state requirements, and other rules that apply to your practice.

So if someone tells you:

“Commercial insurance requires treatment plans every three months.”

My next question is:

Which insurance company? Show me the policy.

If they can’t show you the policy, we may be dealing with what I’m fond of calling “misinformation passed down as a legacy burden from one well-meaning therapist to another.”

And there is a LOT of that in our field.

So How Often Should You Write a Treatment Plan?

Here’s the simplified version:

Medicaid: Check your state Medicaid requirements and the requirements of your Medicaid managed-care plan. Quarterly requirements are common in some programs, but they are not universal.

Medicare: Check your MAC. If it specifies a treatment-plan frequency, follow it.

Commercial insurance: Check the payer’s requirements. Don’t assume there’s a quarterly requirement simply because someone told you there is.

And when no applicable rule specifies a frequency? For ongoing psychotherapy, I recommend a thoughtful yearly treatment plan, updated sooner when clinically indicated.

Remember, the treatment plan doesn’t live by itself. Your progress notes should continuously demonstrate what you’re treating, what you’re doing, how the client is responding, the progress or continued struggles you’re seeing, and why ongoing treatment remains medically necessary.

That’s what creates the clinical story, whether the person reviewing your record is an insurance auditor or a licensing board.

The Bottom Line

Treatment planning shouldn’t just be a paperwork ritual. The purpose of a treatment plan is to describe where you’re going and why you’re going there. Your progress notes show what happens along the way.

For some clients, three months is a perfectly reasonable treatment horizon. For others, especially clients doing complex, long-term trauma work, it isn’t.

Wouldn’t it be convenient if people made consistent, meaningful change in tidy 90-day increments? Unfortunately, our clients never got the memo.

Don’t create unnecessary paperwork because somebody once told somebody who told somebody else that “insurance requires treatment plans every 90 days.”

Find the actual requirement. If it says every 90 days, write the treatment plan every 90 days. If it doesn’t, don’t create a rule that isn’t there and call it “best practice.”

Your treatment plan should be clinically meaningful, meet the standards that apply to you, and change when the treatment warrants a change.

If no frequency standard applies to you, why create more work for yourself than you need to? That’s not best practice for anyone.