Best Questions to Ask a Functional Psychiatry Provider (2026)

1. “What is your license, and who on the team can diagnose and prescribe?”

Credentials

Psychiatrists are physicians with either an MD (Doctor of Medicine) or a DO (Doctor of Osteopathic Medicine) degree. Both are fully licensed physicians. Many are also board-certified in psychiatry by the American Board of Psychiatry and Neurology. Psychiatric-mental health nurse practitioners (PMHNPs) are advanced practice nurses with graduate training in psychiatry. NAMI notes that they can assess, diagnose and treat mental health conditions, and that in many states they can prescribe, with supervision rules that vary by state.

A certificate in functional medicine is a different thing. It is additional training from a private organization, not a license. It can be valuable, but it doesn’t tell you whether someone can diagnose a psychiatric condition or manage medication. Health coaches, nutritionists and chiropractors may also work in functional practices, so ask who you will actually see and what each person’s role is.

Follow-up to ask: “Are you licensed in the state where I live?” For telehealth, your clinician must be licensed in the state you are physically in during the visit.

Source: NAMI: Types of Mental Health Professionals; MedlinePlus: Types of health care providers

2. “Which labs will you order, and why each one?”

Testing

A thoughtful integrative workup often starts with widely used tests that can uncover medical contributors to mood, energy and focus. Thyroid function, blood counts and iron, vitamin B12, vitamin D and metabolic markers are common examples. Some practices go on to order specialty panels, such as stool analyses, organic acid tests, food-sensitivity panels or hormone mapping. The evidence behind these varies a lot.

The most useful follow-up is: “What result on this test would change what we do?” If a test’s results would not change the plan, it may not be worth the cost. Also ask whether the lab is CLIA-certified, whether your insurance will cover it, and whether results from your primary care provider’s recent bloodwork can be used instead of repeating tests.

Caveat: A lab value outside a “functional” or “optimal” range is not the same as a diagnosis. Ask how the practice interprets results against standard reference ranges.

3. “What is the evidence for each supplement you recommend?”

Supplements

NCCIH explains that the FDA is not authorized to review dietary supplements for safety and effectiveness before they are marketed. Prescription drugs, by contrast, must show evidence of both before approval. That means the quality of the evidence, and of the product, rests largely on the manufacturer and on your clinician’s judgment.

For each recommendation, ask what it is for, what the research in people shows, what dose and for how long, and how you will judge whether it is helping. Also ask whether the product is third-party tested for purity and dose. A good answer might be: “This has moderate evidence as an add-on for X. Let’s try it for eight weeks and reassess.” Be wary of answers that promise a supplement will “balance” or “detox” something without any way to measure it.

Source: NCCIH: Using Dietary Supplements Wisely; FDA: Dietary Supplements

4. “Could any of this interact with my medications?”

Safety

Natural does not mean inert. NCCIH notes that dietary supplements can interact with medications. It uses St. John’s wort as an example: the herb can weaken the effects of many medicines, including some antidepressants and birth control pills, and can interact in dangerous ways with others.

Bring a complete list of every prescription, over-the-counter product and supplement you take, with doses. Ask the provider to check each new recommendation against that list, and ask how they will share changes with your other prescribers.

Caveat: Never start, stop or change a prescribed medication on your own because of a supplement plan. Talk to your prescriber first.

Source: NCCIH: St. John’s Wort

5. “Do you sell the supplements or tests you recommend?”

Conflicts of interest

Many functional practices run an in-house dispensary or an online store, or earn a margin on specialty labs. That is not automatically a problem. Clinic-sourced products can be convenient and quality-controlled. But it is a financial interest, and you deserve to know about it.

Reasonable follow-ups: “Can I buy an equivalent product elsewhere?” “Is there a lower-cost version with the same ingredient and dose?” “Will my care be affected if I decline a product or panel?” A practice that is comfortable with these questions is usually one that puts your interests first.

6. “Where does medication fit in your approach?”

Philosophy

Integrative psychiatry, done well, uses medication when it is the right tool and looks for root causes at the same time. Some practices that call themselves functional lean strongly against medication in all cases. That can be risky for conditions such as bipolar disorder, psychosis or severe depression, where medication is often an essential part of treatment. The National Institute of Mental Health describes the main classes of psychiatric medications and notes that decisions about them should be made with a health care provider.

Ask directly: “If I am already on medication, will you work with it?” and “If we ever consider reducing a medication, how would you plan and monitor that?” You want a clear answer that includes a gradual, supervised taper and not a quick switch to supplements.

Source: NIMH: Mental Health Medications

7. “How do you use genetic testing, and what can it not tell me?”

Pharmacogenomics

Pharmacogenomic (PGx) tests look at genes that affect how your body processes certain medications. The FDA keeps a table of gene-drug pairs where it believes the evidence shows people with certain variants are likely to process a drug differently. The FDA also says a pair’s inclusion in the table does not necessarily mean it recommends testing before prescribing.

Good questions to ask: “Which of my current or likely medications have a known gene-drug interaction?” “How will the result change what you prescribe?” “What does the test cost, and is it covered?” Be cautious if a practice uses genetic results, such as MTHFR variants on their own, to justify long supplement protocols without explaining the evidence.

Source: FDA: Table of Pharmacogenetic Associations; MedlinePlus Genetics: What is pharmacogenomics?

8. “How will you coordinate with my primary care provider and therapist?”

Coordination

Integrative psychiatry often overlaps with primary care. Thyroid results, blood sugar, iron and hormones all belong in your medical record, not just a psychiatric chart. Ask whether the provider will send lab results and plan changes to your PCP, who follows up on a medical finding (for example, an abnormal thyroid result), and how to avoid ordering the same tests twice.

If you see a therapist, ask how the prescriber and therapist will share information, with your written consent. Integrative care works best when everyone is working from the same plan.

9. “What will this cost in total, and what will insurance cover?”

Cost

Functional and integrative programs can add up. There are visit fees, specialty labs that insurance often won’t cover, supplements every month, and sometimes a package or membership. Ask for the full expected cost of the first three to six months, not just the first visit.

Ask whether the practice is in-network with your plan or out-of-network, and whether it provides a superbill you can submit for possible reimbursement. Under federal No Surprises Act rules, if you are not using insurance, a provider generally must give you a good faith estimate of expected charges when you schedule at least three business days ahead or when you ask for one.

Source: CMS: Good faith estimate

10. “How will we know whether this is working, and when would we change course?”

Measuring progress

Ask how progress will be tracked. Many practices use short standard symptom questionnaires, such as the PHQ-9 for depression or the GAD-7 for anxiety, at each visit, along with sleep, energy and function. Ask what a realistic time frame looks like for each part of the plan, and what happens if you are not improving by then.

A clear plan has checkpoints, for example: “We will recheck this lab in 12 weeks and review whether the supplement is worth continuing.” A plan that only ever adds new tests and products, and never removes anything, is a warning sign.

11. “What do you not treat, and when would you refer me elsewhere?”

Scope and safety

No practice is right for everyone. Ask which conditions they refer out. Common examples are active psychosis, eating disorders that need medical monitoring, or a need for a higher level of care. Also ask what their plan is if you are in crisis between visits.

Telehealth practices in particular should be able to explain after-hours coverage and local emergency options. Knowing the answer before you need it is part of good care. In any emergency, call or text 988 or call 911.

Source: NIMH: Help for Mental Illnesses