Dr. Richard M. Marshall, Ed.D., Ph.D.
Psychological Testing and Evaluations, ages 1 through adulthood
In person in Lakeland · video visits across Florida
Psychological Testing · Lakeland office
ADHD testing and psychological testing in Lakeland
Evaluations with Dr. Richard M. Marshall, Ed.D., Ph.D., at our downtown Lakeland office, from age 1 through adulthood.
- Accepting new patients
- In person at 832 Florida Ave S
- Ages 1 through adulthood
You’ll see Dr. Richard M. Marshall, Ed.D., Ph.D..
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Quick answer
Psychological testing in Lakeland at Ascend Mind and Body is done by Dr. Richard M. Marshall, Ed.D., Ph.D., a psychologist, at our downtown office, 832 Florida Ave S Ste 1, Second Floor: neurodevelopmental, psychoeducational, neuropsychological and neurocognitive evaluations from age 1 through adulthood. We work with many major commercial plans and offer self-pay options. Coverage varies by plan and service. Our team will confirm with you.
How it works
Request a visit
Send the form or call (863) 510-2624. A care coordinator calls you back, usually within one business day, and confirms your coverage before your first visit.
Choose the right evaluation
Dr. Richard M. Marshall, Ed.D., Ph.D., helps you pick the evaluation that fits your question.
Testing, then a feedback visit
Testing takes place at our Lakeland office, followed by a feedback visit to go over the results with you.
Book with your clinician
The clinician who will see you.
Call the office to book, or use the form and a care coordinator will call you.
In the office, or by video
By secure video
- Some intake and feedback steps, depending on the evaluation
Telehealth visits are for patients who are physically in Florida at the time of the visit. Florida residents only.
At our Lakeland office
- Testing sessions at our Lakeland office
- Evaluations for children as young as one
Evaluations offered
Neurodevelopmental evaluationsFor children as young as one year of age.
Psychoeducational evaluationsFor school-aged children, connecting how a student thinks with how they perform.
Neuropsychological evaluationsFor preteens, teens and adults: attention, memory, language, reasoning and processing speed.
Neurocognitive evaluationsFor older adults with questions about memory and thinking.
From the first question to the feedback visit
Every evaluation with Dr. Marshall starts with a question, and the rest of the process is built to answer it. His doctoral training spans two fields: reading and learning disabilities for his Ed.D., and neuropsychology for his Ph.D. More than 25 years of his career have been spent in teaching hospitals, and he co-wrote the Pediatric Behavior Rating Scale.
The referral question
You, a parent, a school or another clinician names what needs answering. Is this ADHD? Why is reading so hard? Are these memory changes normal for my age? You can call on your own or ask your doctor to refer you.
Intake
Dr. Marshall gathers your history: development, school and work, health, and what has already been tried. Depending on the evaluation, this step can sometimes happen by secure video. Bring any earlier reports or school records you have.
Testing
Standardized tasks and questionnaires, chosen for your question, at the Lakeland office. A full battery can run several hours, and how long yours takes depends on age and on what is being asked.
Scoring
Your results are compared with those of other people the same age, then read together with your history. The pattern across scores carries more meaning than any single number.
The written report
A summary of what the testing found and what it means, with recommendations you can share with a school, an employer or another provider if you choose.
The feedback visit
Dr. Marshall goes through the results with you in plain terms and answers your questions. Depending on the evaluation, feedback can also happen by video.
Adult ADHD testing
No single test diagnoses ADHD. The CDC says so directly, and adds that sleep disorders, anxiety, depression and some learning disabilities can produce symptoms that look a lot like it. Sorting out that overlap is a large part of what adult ADHD testing is for.
At our Lakeland office, ADHD testing for adults is done as part of a neuropsychological evaluation. Dr. Marshall measures attention, memory, language, reasoning and processing speed with standardized tasks, scores them against people your age, and pairs the results with a detailed history. Because ADHD symptoms begin in childhood, that history reaches back to your school years. A parent’s memories or old report cards can help fill it in.
When ADHD testing is the right first step
- A university disability office or an exam board has asked for normed scores
- A disability determination is involved
- A learning disability might be part of the picture
- There has been a head injury, or the question is tangled up with autism traits
- You want a detailed picture of your strengths and weak spots, not only a yes or no
Dr. Marshall is a psychologist and does not prescribe medication. If testing supports ADHD and you want to talk about treatment, the report can go to the prescriber you choose, with your permission.
ADHD testing or a psychiatric ADHD evaluation?
The two answer different questions, and at Ascend Mind and Body they happen in different places, with different clinicians.
ADHD testing, in LakelandWith Dr. Marshall, a psychologist. Several hours of standardized testing scored against population norms, written up as a formal report. Useful when someone needs documented scores or the picture is complicated. No prescribing.
Psychiatric ADHD evaluation, Wesley Chapel or videoWith Anna Stouffer, PMHNP-BC, or Margot Krahn, PMHNP-BC, psychiatric nurse practitioners. A structured clinical interview, rating scales and a symptom timeline, ending in a diagnosis and a treatment plan that can include medication.
When the real question is whether to begin treatment, the psychiatric evaluation is usually the more direct route for adults. The psychiatric ADHD evaluation is offered in person at our Wesley Chapel office, 27724 Cashford Cir Ste 102, or by secure video anywhere in Florida. Stimulants are Schedule II controlled substances, and before our psychiatric providers prescribe one, you need one in-person visit at the Wesley Chapel office. See ADHD treatment in Wesley Chapel or online ADHD evaluation in Florida.
Some people benefit from both. Testing can come first and inform the prescriber, or a prescriber can suggest testing when the picture is unclear. Either way, the two can be coordinated inside one practice.
Autism evaluation for adults
If you have wondered for a long time whether autism explains how you experience the world, an evaluation can bring a clearer answer. The Lakeland office offers autism assessments as part of its psychological testing, with Dr. Marshall.
The National Institute of Mental Health notes that diagnosing autism in adults is often harder than in children, partly because some signs overlap with other conditions, and that adult evaluation is still being refined. Adults may be referred to a specialist such as a psychologist or neuropsychologist with autism experience, who asks about four areas:
- Social interaction and communication
- Sensory issues
- Repetitive behaviors
- Restricted interests
Early history matters. If a parent, an older sibling or someone else who knew you as a young child can share what they remember, NIMH notes that this kind of developmental history helps the evaluation reach an accurate answer. Autism traits can also overlap with ADHD and anxiety, which is one more reason a careful, history-based evaluation is worth the time.
Our psychiatric providers do not perform diagnostic autism evaluations, so this question belongs with psychological testing. If you are looking for support rather than a diagnosis, our Lakeland therapists offer affirming therapy for autistic and neurodivergent adults through therapy in Lakeland.
Which evaluation fits an adult
Dr. Marshall evaluates patients from age 1 through older adulthood, and the kind of evaluation shifts with age. For adults, two apply. A neuropsychological evaluation is the home for adult ADHD testing and for questions about attention, learning or processing after school is long over. A neurocognitive evaluation is for older adults who have noticed changes in memory or thinking and want to know how they compare with others the same age.
Not sure which one you need? Tell the care team your question when you call, and they will help match it to the right evaluation. Read more on Dr. Marshall’s profile, or see neuropsychological evaluation for how adult testing is structured.
Where you can be seen
In person at our Lakeland office, with some steps by secure video where the evaluation allows.
In person
Lakeland office
Ascend Mind and Body832 Florida Ave S Ste 1, Second Floor
Lakeland, FL 33801
Second floor, between Memorial Boulevard and Lime Street. Street parking is available plus a lot behind the building. Hours: Monday through Friday, 9:00 AM to 5:00 PM.
By video
Part of the evaluation, from home
- Some steps can be done by secure video
- Whether the testing itself can be depends on the evaluation
- The team tells you which parts when you call
ADHD testing and psychological testing in Lakeland by video near you
Insurance and cost
We work with many major commercial plans and offer self-pay options. Coverage varies by plan and service. Our team will confirm with you.
Insurance questions go to our care team, who confirm your coverage with you before your first visit.
Common questions
Where is testing done?
At our Lakeland office, 832 Florida Ave S Ste 1, Second Floor, Lakeland, FL 33801. Second floor, between Memorial Boulevard and Lime Street. Street parking is available plus a lot behind the building.
Who are evaluations for?
Children as young as one, school-aged children, teens, adults and older adults. Each evaluation is matched to the question you are asking.
Can any of it be done by telehealth?
Some steps can be done by secure video. Whether the testing itself can be depends on the evaluation, and the team tells you when you call.
How do I get the results?
In a feedback visit where Dr. Marshall goes over what the testing showed and what it means for school, work or daily life.
Does insurance cover testing?
We work with many major commercial plans and offer self-pay options. Coverage varies by plan and service. Our team will confirm with you. Insurance questions go to our care team, who confirm your coverage with you before your first visit.
Ready when you are.
Send a request and a care coordinator will call you back, or call us now. Insurance questions go to our care team, who confirm your coverage with you before your first visit.