Adult ADHD evaluation: how a real diagnosis is made.

What an adult ADHD evaluation actually is

ADHD is a clinical diagnosis. That is not a hedge — it is how the diagnostic criteria are written. The DSM-5 requires a pattern of inattention and/or hyperactivity-impulsivity that has persisted for at least six months, that was present before age 12, that shows up in two or more settings, that clearly interferes with functioning, and that is not better explained by another condition.

Every one of those requirements is answered by history, not by a machine. A good evaluation is therefore a good conversation, conducted systematically by someone who knows what to ask and what to look for.

What separates a real evaluation from a bad one is not length. It is whether the clinician did the developmental history, checked functioning in more than one domain, and seriously considered the alternatives. A ten-minute visit that ends in a stimulant prescription is not an evaluation.

What happens in the visit

Our adult ADHD intake runs 60 minutes and covers:

• Current symptoms in detail — not "do you have trouble focusing" but how tasks actually fall apart: initiation, sustained attention, working memory, time estimation, organization, restlessness, impulsivity, emotional regulation.
• Developmental history. School reports, patterns from childhood and adolescence, what teachers said, whether you were the quiet daydreamer or the one in the hallway. Adults with inattentive presentation often were never flagged.
• Functional impact across settings — work, home, relationships, finances, driving.
• Validated rating scales. The ASRS v1.1 and, where useful, a broader adult scale. Scales support the picture; they do not make the diagnosis.
• Collateral information where available — a partner, a parent, an old report card. Helpful, not required.
• Medical and psychiatric review, including sleep, substances, caffeine, current medications, thyroid, and cardiac history if a stimulant is on the table.

You can shorten the visit considerably by taking the ASRS screener beforehand and bringing anything you have from childhood.

What "ADHD testing" actually means

People search for "adult ADHD testing" expecting something like a lab panel. There is no such thing. What exists:

• Rating scales (ASRS, CAARS, Barkley scales) — self-report questionnaires. Useful, standardized, and not diagnostic on their own.
• Continuous performance tests (TOVA, QbTest) — computerized attention tasks. They have poor sensitivity and specificity for adult ADHD and are not required. We do not use them to make the call.
• Neuropsychological testing — a multi-hour battery administered by a neuropsychologist. Genuinely valuable in specific situations: suspected learning disability, traumatic brain injury, unusually complex differentials, or when documentation is needed for academic accommodations. It is not the standard route to an adult ADHD diagnosis, and it is expensive.

If you need neuropsych testing, we will say so and refer. Most adults do not.

What we rule out before saying yes

Several conditions produce a symptom picture that is close to indistinguishable from ADHD on the surface:

• Anxiety disorders — worry consumes working memory and looks exactly like inattention. This is the most common confusion, and the two also frequently co-occur. See telling ADHD and anxiety apart.
• Depression — concentration impairment is a diagnostic criterion for major depression.
• Sleep disorders — untreated obstructive sleep apnea and chronic insufficient sleep both produce daytime inattention that resolves when the sleep problem does.
• Thyroid disease, anemia, and other medical causes.
• Substance and caffeine use, including cannabis and heavy stimulant beverage intake.
• Bipolar disorder — important to identify before prescribing a stimulant.
• Trauma histories, where hypervigilance and dissociation mimic distractibility.

Finding one of these does not rule out ADHD. Adults frequently have both, and treatment sequencing matters.

Getting evaluated by telehealth

An adult ADHD evaluation is well suited to video. The evaluation is interview-based, and nothing in the diagnostic process requires physical examination. We evaluate adults by secure video anywhere in Oregon and anywhere in Washington.

If the plan includes a stimulant, prescribing by telehealth is permitted under current federal rules with an appropriate evaluation, and we check the state prescription monitoring program before writing. The specifics are covered in ADHD medication by telehealth in Oregon.

What happens after the diagnosis

A diagnosis without a plan is not worth much. At the end of the evaluation you should have a clear answer, an explanation of how we got there, and a specific next step — which may be a stimulant trial, a non-stimulant, treating an underlying sleep or anxiety problem first, a referral for skills-based coaching or therapy, or documentation for workplace or academic accommodations.

Follow-up on a new medication is typically at two to four weeks, with rating scales repeated so we are measuring rather than guessing.

Cost and insurance

The evaluation is billed as a standard psychiatric diagnostic evaluation and is covered by all ten plans we are in network with in Oregon and Washington. Most patients pay a specialist copay. We are not able to accept Medicaid or the Oregon Health Plan. Self-pay rates are available by phone, and we verify benefits before the first visit.

Frequently asked questions