Melvyn G. Preisz, PhD in Oklahoma City: Neuropsychology and Cognitive Assessment

Melvyn G. Preisz, PhD is a clinical neuropsychologist practicing in Oklahoma City who specializes in cognitive and neuropsychological evaluation for adults with suspected or diagnosed neurological conditions, memory disorders, and cognitive decline. His practice operates independently and accepts most major insurance plans, focusing on detailed assessment rather than ongoing psychotherapy.

What neuropsychological evaluation actually assesses

Neuropsychology differs from general psychology by measuring specific cognitive domains: memory (immediate, short-term, and long-term), executive function, attention, language, visuospatial skills, and processing speed. A neuropsychologist's role is diagnostic; they identify which brain systems are working well and which are not, and their findings guide treatment decisions. Preisz conducts comprehensive batteries that can take 4 to 8 hours across multiple sessions, not brief screening tests. The resulting report goes to the referring physician, who interprets findings in the context of a patient's medical history and determines next steps.

Common evaluation reasons and what insurance typically covers

Patients are referred to Preisz for evaluation when cognitive problems are suspected but not yet diagnosed: early memory concerns in middle-aged or older adults, post-concussion or traumatic brain injury recovery, evaluation before neurosurgery, suspected dementia, Parkinson's disease or multiple sclerosis assessment, and chemotherapy-related cognitive effects ("chemo brain"). Medicare and most commercial insurers cover neuropsychological evaluation when ordered by a physician; out-of-pocket cost for uninsured patients typically ranges from $2,500 to $4,000 for a full battery, though this varies by scope. Verify your plan's coverage and any preauthorization requirement before scheduling.

How Oklahoma City's neuropsychology options compare

Oklahoma City has limited independent neuropsychologists; most assessments happen through hospital-based neurology departments or psychology clinics affiliated with OU Health or integris Health. Those hospital settings offer continuity with neurology and medical records but may have longer wait times and less specialized focus on cognitive assessment alone. Preisz's independent practice allows flexibility in scheduling and report turnaround without hospital administrative delays, though patients must ensure their referring physician is willing to coordinate care outside a hospital system. For patients already managed by a neurologist at a large medical center, in-system testing may be more convenient; for those seeking a standalone comprehensive cognitive evaluation or a second opinion, an independent practitioner gives more control over the process.

Who should schedule an evaluation with Preisz and who should consider alternatives

Neuropsychological evaluation is appropriate for adults whose doctor suspects cognitive dysfunction but standard tests (such as an office Mini-Cog or Montreal Cognitive Assessment) are inconclusive, and when treatment decisions depend on a detailed profile of strengths and weaknesses. Patients with a clear diagnosis (dementia, Parkinson's, stroke) who are already in active treatment with a neurologist may need fewer formal evaluations. Those seeking diagnosis of ADHD in adults, personality assessment, or ongoing cognitive rehabilitation therapy should ask whether Preisz's referral-based diagnostic model fits their need; some patients benefit more from a psychologist who provides both assessment and follow-up treatment.

What the first appointment involves

Before the first session, the patient or referring doctor completes a clinical history form covering medical history, medications, family history, education, work, and current symptoms. Preisz reviews this and typically schedules a one-hour clinical interview to discuss concerns in detail and explain what the evaluation will involve. On testing days, plan for 2 to 4 hours per session; testing involves pencil-and-paper tasks, computer-based assessments, and verbal questions. The neuropsychologist observes effort, mood, and how the person approaches problems, not just accuracy. After all sessions are complete, a written report synthesizing findings, interpretive conclusions, and recommendations is mailed to the referring physician, usually within 2 to 3 weeks.

Hours, location, and logistics

Preisz's practice operates by appointment only; walk-ins are not accommodated. Office hours are typically Monday through Friday, 9 a.m. to 5 p.m., though scheduling outside standard hours is sometimes possible for working adults. Confirm current hours and location before scheduling, as neuropsychology practices occasionally relocate. Parking is generally straightforward for independent offices; ask about on-site or nearby lot availability when you call. Testing sessions are cognitively demanding; bring water, avoid scheduling on days when fatigue will be severe, and plan to have someone available for the drive home if the evaluation is lengthy or if you feel exhausted afterward.

Neuropsychological evaluation is not routine; it requires a physician's referral and is most valuable when the question being asked is specific. Preisz's independent practice serves Oklahoma City patients whose primary care doctor or neurologist needs detailed cognitive assessment to move diagnosis forward or monitor change over time.