Comprehensive psychological evaluations for ADHD, autism, learning differences, and complex diagnostic questions — with a written report that's readable, and a feedback session that makes sense of the results.
You've been wondering long enough.
Many people arrive at a psychological evaluation after years of confusion, misdiagnosis, or simply not having the language for what they've been experiencing — or because questions are surfacing now that deserve a careful look. Some have been told they don't fit the profile. Some were evaluated as kids and the picture never quite held. A thorough evaluation doesn't just answer the diagnostic question — it gives people something to stand on.
Therapy here follows the same orientation: careful attention to patterns, complexity, and the meanings that develop over time.
For people with longstanding questions about attention, focus, organization, or follow-through.
Learn more →For people who have wondered whether they may be autistic — including those who've never been evaluated.
Learn more →For individuals who want to understand how they think and learn — and why certain things have always been harder than expected.
Learn more →Individual therapy for adults seeking insight and genuine understanding, not just symptom relief.
Learn more →You've wondered about ADHD, autism, or learning differences for years — but never pursued a formal evaluation, or the one you had didn't give you a clear answer.
You've been dismissed, misdiagnosed, or told your symptoms aren't significant enough — but something still doesn't add up.
You're seeking accommodations at work or school, or need a clear diagnostic picture to share with other providers.
You have overlapping presentations, a complex history, or prior evaluations that raised more questions than they answered.
Kevin McKenzie, Psy.D., is a licensed psychologist in Arizona with doctoral training in psychological assessment and psychotherapy. He completed his doctoral training at Antioch University New England, his APA-accredited internship through the Southern Arizona Psychology Internship Center (SAPIC), and his postdoctoral fellowship at La Frontera Center in Tucson.
Assessment is the core of this practice. The work is thorough and multi-method — but what he cares about most is what comes after the testing: a report that actually explains something, and a feedback session where the findings become useful.
Full bio →The first step is a brief consultation call. There's no obligation — it's an opportunity to ask questions and find out whether an evaluation makes sense for you.
Request a consultationMulti-method assessment using standardized testing, structured clinical interview, and behavioral observation — resulting in a written report that's clear, detailed, and useful.
A lot of evaluations start with a question that's been sitting unanswered for a long time — sometimes years. Maybe someone has been told they don't fit the profile, or got an answer in childhood that never quite held up, or has just been making it work without really understanding why certain things are so hard. A good evaluation is a chance to get a clear picture — and to come away with a framework for understanding yourself that you didn't have before.
I work with adults and adolescents ages 10 and older. Most referrals involve questions about ADHD or autism that were never fully answered, or were answered in childhood and need revisiting. All evaluations are thorough and multi-method — I don't use brief screeners or single-measure assessments.
For adults and teenagers with longstanding questions about attention, focus, organization, or managing emotions. Many have been told they "don't seem like ADHD" or received an inconclusive result earlier in life — or were evaluated as children and the picture no longer holds.
This may be right for you if: You've struggled with focus, follow-through, or organization for as long as you can remember; you've compensated well enough that no one noticed until demands increased; or you've been diagnosed with anxiety or depression but feel like part of the picture is still missing.
For adults and teenagers who have questioned whether they may be autistic — particularly those who learned to mask early, received a different diagnosis, or are encountering the question for the first time.
This may be right for you if: Social situations require significant effort or debrief; you've always felt somewhat out of step with others without understanding why; sensory experiences are more intense than they seem to be for most people; or a prior evaluation was inconclusive or didn't feel right.
Because autism presents differently across ages and genders, the evaluation is tailored to your specific presentation rather than a fixed checklist.
For individuals seeking a clear picture of cognitive strengths and weaknesses, documentation of learning differences, or support for academic or workplace accommodations.
This may be right for you if: Reading, writing, or math has always required significantly more effort than expected; you're pursuing accommodations at a college or university; you're returning to school and want to understand how you learn; or you need formal documentation for a workplace accommodation request.
Can be paired with an ADHD evaluation when both questions are relevant.
For individuals in situations where prior explanations haven't quite fit — multiple diagnostic questions, prior evaluations that raised more questions than they answered, or a clinical picture that doesn't fit neatly into a single category.
This may be right for you if: You've received multiple diagnoses over time and want a clearer integrated picture; you're starting therapy or medication and want a solid diagnostic foundation; or you have a complex history that hasn't been fully evaluated in one place.
The scope is determined collaboratively based on your referral question.
Assessments billed at $200/hr · Payment due at feedback session · Superbills provided · HSA and FSA cards accepted
Fees shown are estimated ranges. The actual fee depends on the scope and complexity of your evaluation and will be confirmed in your Good Faith Estimate prior to your first appointment.
Questions about fees? Get in touch →We start with a brief phone call — typically 15 to 20 minutes. This is a chance for you to ask questions about the process, share what brings you in, and determine whether an evaluation makes sense. There's no charge for this call and no obligation to proceed.
Most evaluations are completed within 6 to 8 weeks of scheduling — sooner for straightforward referral questions, longer for comprehensive evaluations.
The evaluation begins with an extended clinical interview — usually 90 minutes to two hours. We'll cover your developmental history, current functioning, school, work, relationships, prior diagnoses or evaluations, and anything else that's relevant. This is one of the most important parts of the process; standardized measures alone don't tell the whole story.
Standardized measures are administered in the office across one or two sessions. The specific battery depends on the referral question. For ADHD evaluations, this typically includes cognitive testing and computerized performance measures. For autism evaluations, it includes the ADOS-2 alongside other structured instruments. You'll also complete rating scales between sessions.
After all sessions are complete, I score the measures, integrate the results with interview data and clinical observation, and write the report. This takes time — typically one to two weeks. The report is not a summary of test scores. It's a formulation: an integrated account that explains what was found, how the pieces fit together, and what it means for you specifically. It's written to be understood by you, not only by other clinicians — and to be useful to the providers, schools, or systems you share it with. Findings are framed to explain rather than pathologize — with attention to how someone's history and context shape their presentation.
We meet to go through the results together. This isn't a brief summary — it's a full session dedicated to making sure you understand what the evaluation found, what the diagnoses mean (or don't mean), and what options are available to you.
If you're a psychiatrist, therapist, or primary care provider looking for a reliable assessment referral, I'm happy to connect. I take referral relationships seriously — you'll get a thorough evaluation, a readable report, and a colleague you can reach directly with questions.
I work with adults and adolescents ages 10 and older. Evaluations for ADHD, autism, learning differences, and complex diagnostic questions. Turnaround is typically two to three weeks from the final testing session.
Referral information →If you're not sure whether an evaluation makes sense for you, the consultation call is the right place to start. No charge, no commitment.
Request a consultationIndividual psychotherapy for adults. Exploratory, relational work oriented toward insight and genuine understanding.
The therapy I offer is exploratory and relational. It's built around the idea that understanding yourself — your patterns, your history, the forces that shape how you live and relate to others — matters as much as symptom relief. Most people who seek this kind of work aren't simply trying to feel less anxious or less depressed. They want to understand why they keep ending up in the same situations, why certain relationships feel the way they do, what's actually driving the choices they make.
My approach draws on psychodynamic and relational frameworks alongside cognitive and skills-based work where it's useful. I don't think good therapy belongs to any single model. What I try to bring to each session is close attention, honest feedback, and a willingness to stay with what's actually going on rather than defaulting to a script.
A lot of what happens in this work involves slowing things down. Most of the patterns that bring people into therapy are automatic — they happen faster than conscious thought, and by the time someone notices them, the moment has already passed. Part of what I try to do is create enough space in the room to catch those moments as they're happening: to notice what just occurred, what was avoided, what the hesitation was actually about. Change tends to require something real — some emotional or relational cost that most approaches paper over. I'd rather name that cost directly than pretend it isn't there.
This approach tends to work well for adults who are curious about their own patterns — who want to understand not just what they do but why, and who are willing to slow down enough to look at that together. It's not a good fit for everyone, and I think it's worth saying so. It tends to suit people who are in a relatively stable place, open to longer-term work, and interested in something more than symptom management. Assessment clients sometimes continue into therapy — that can work particularly well when the evaluation has already surfaced patterns worth exploring.
Therapy begins with a 90-minute intake session. This gives us time to gather relevant history, clarify what you're hoping for, and assess whether this is a good fit. Following the intake, sessions are 50 minutes and are typically scheduled weekly, though frequency can shift over time.
The length of therapy varies considerably. Some people come for a focused period of several months; others engage in longer, open-ended work. I check in periodically about how things are going and whether the direction or frequency should change. You're free to stop at any time, and I'll always support a thoughtful transition.
I keep a small caseload to make sure I can give it the attention it deserves. If you're interested in therapy, select it in the consultation form — we'll use the consultation call to talk about what you're looking for, discuss fit, and go from there.
Licensed Psychologist · Tucson, Arizona
I'm a licensed psychologist in Arizona, and McKenzie Psychology is my private practice. I've always been drawn to questions that don't have obvious answers — to the careful, methodical work of figuring out what's actually going on. Assessment is a natural fit for that curiosity. And when it goes well, it's also something more: a chance for someone to finally feel seen and understood in a way they haven't before.
I came to assessment through clinical work, not the other way around. Most of my professional life has been spent doing direct service with people dealing with serious mental illness, trauma, and complex presentations — the kind of work that requires careful thinking about what's actually going on with a person. Assessment is an extension of that same orientation: a serious attempt to understand someone, with a report that reflects that effort.
My goal in every evaluation is to write in a way that explains rather than catalogs. Test data, clinical observation, and developmental history are integrated into a formulation — a coherent account of how a person's functioning makes sense given who they are and where they've been. The goal is a report that the person receiving it can understand, share with their providers, and actually use.
I completed my doctoral training in clinical psychology at Antioch University New England and my APA-accredited internship through the Southern Arizona Psychology Internship Center (SAPIC), which gave me strong grounding in assessment across a range of presenting concerns and populations. My postdoctoral fellowship was at La Frontera Center in Tucson.
My assessment training includes supervised ADOS-2 administration and specialized training in ADHD, autism, psychoeducational, psychodiagnostic, and IDD/DDD evaluation.
My therapeutic work is grounded in psychodynamic and relational frameworks, with cognitive and skills-based approaches where they fit naturally. In practice, this means close attention to pattern — how people relate, what they avoid, where they hesitate and why. I work at a pace that allows those patterns to become visible rather than just described, and I try to be honest about what change actually requires. Avoidance is usually protective rather than resistant, and insight that doesn't engage with its own emotional cost tends not to stick. I work best with people who are curious about what's going on beneath the surface and willing to do the slower, more deliberate kind of work that genuine understanding takes.
I am a member of the National Register of Health Service Psychologists, the American Psychological Association, and the Southern Arizona Psychological Association.
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Antioch University New England
Southern Arizona Psychology Internship Center (SAPIC), Tucson, AZ
La Frontera Center, Tucson, AZ
1661 N. Swan Rd., Suite 240, Tucson, AZ 85712
Telehealth available for therapy and select assessment components
Assessment — Adults and adolescents ages 10 and older
Psychotherapy — Adults of all ages
Private pay only. Superbills provided for out-of-network reimbursement.
For consultation requests, referrals, and general inquiries. Not a crisis service — see below for emergency resources.
The first step is usually a brief phone call — a chance to ask questions, share a bit about what you're looking for, and find out whether an evaluation or therapy makes sense. You don't need to know exactly what you're looking for before reaching out. Use the form below and I'll follow up within one to two business days. If you're a referring clinician, please mention that.
Prefer to call? 520.230.2530
Please note: Submitting this form does not establish a therapeutic or evaluative relationship. Please do not include sensitive health information in your message. If you are in a mental health crisis, please call or text 988 or call 911.
I'll be in touch within one to two business days. If you have urgent questions, feel free to call: 520.230.2530.
McKenzie Psychology is a private-pay practice. I do not bill insurance directly, but I provide detailed superbills for clients who wish to seek reimbursement through out-of-network benefits. HSA and FSA cards are accepted. Please reach out to discuss fees before scheduling — I'm happy to answer questions.
This practice is not a crisis service. If you are in a mental health emergency:
Information for psychiatrists, physicians, therapists, and other clinicians considering a referral to McKenzie Psychology.
I accept referrals for adults and adolescents ages 10 and older presenting with questions about ADHD, autism, learning differences, or complex diagnostic clarification. I work well with clients who have atypical or overlapping presentations, prior inconclusive evaluations, or late-identified adults who have been functioning despite an unrecognized condition. Clients should be stable enough to participate in a multi-session evaluation — this is not an appropriate referral for someone in acute psychiatric crisis.
I work best with adults who are psychologically minded, relatively stable, and looking for something more than symptom management — people who want to understand their patterns, not just change their behavior. Good referrals include adults with depression, anxiety, relational concerns, identity questions, life transitions, or trauma histories who are interested in depth-oriented work. I work well with clients who appear to be managing well but are privately struggling, or who've had symptom-focused therapy and feel like something is still missing.
My approach is relational and exploratory, drawing on psychodynamic and evidence-based frameworks applied flexibly based on what the client and the work require.
Assessment: I do not conduct neuropsychological evaluations for neurodegenerative conditions, dementia, TBI, stroke, or other acquired neurological injury. Those referrals are best directed to a neuropsychologist. The cognitive testing I use is in service of psychodiagnostic questions — not brain-behavior mapping in the neurological sense.
Psychotherapy: Individual therapy for adults only. I do not offer couples therapy, family therapy, or therapy for children or adolescents. This is not a crisis service and is not appropriate for acute psychiatric stabilization.
Forensic and Legal: I do not conduct forensic evaluations, provide expert witness testimony, or perform custody evaluations. This practice does not accept court-ordered referrals.
All evaluations are multi-method, integrating cognitive testing, standardized rating scales, structured clinical interview, behavioral observation, and review of prior records and collateral information where available. I don't rely on single-measure assessment or brief screeners.
Cognitive processing, attention and working memory, executive functioning, and behavioral patterns across settings. Rating scales from client and collateral informant. Differential diagnosis includes mood, anxiety, and sleep disorders where clinically relevant.
ADOS-2 (Module 3 or 4, depending on presentation), self-report and informant measures, adaptive functioning, and detailed developmental history. Attentive to presentation variation across genders and in high-masking individuals.
Cognitive and academic achievement assessment, with attention to processing profiles relevant to learning differences. Suitable for adolescents and adults seeking accommodations documentation in educational or workplace settings.
For complex or overlapping presentations. Scope determined collaboratively based on referral question. May include intellectual and processing assessment, personality and symptom measures, and structured diagnostic interview. Does not include neuropsychological evaluation for neurodegenerative conditions, TBI, or dementia.
Reports are narrative and integrative — not a stack of tables with a brief summary. I write for two audiences simultaneously: the referring provider who needs diagnostic precision and differential reasoning, and the client who needs to understand their own results.
A typical report includes: referral question and relevant history, behavioral observations, test-by-test results with interpretation, integrated diagnostic formulation with differential reasoning, and specific recommendations for treatment, accommodations, or further evaluation.
Reports are organized around a 2–3 page summary section that leads with diagnostic conclusions, clinical formulation, and key recommendations — written for the reader who needs the bottom line quickly. The full report provides the supporting detail for those who want it. I'm happy to discuss findings by phone if that's useful.
Turnaround from the final testing session to report delivery is typically two to three weeks, depending on battery complexity. Full evaluation timelines vary based on scheduling. I'll let you know if a case warrants more time.
I'm reachable directly — before, during, or after an evaluation — with questions about a referral or findings. You won't be routed through an intake coordinator.
Clients can be referred by directing them to the contact form on this site or by having them call directly. A brief referral note is appreciated but not required. Release of records from your practice is helpful when available.
Private pay only. Clients are billed directly; superbills provided for out-of-network reimbursement. McKenzie Psychology does not bill insurance or Medicaid/Medicare.
Two to three weeks from the final testing session to report delivery, depending on battery complexity. Full evaluation timelines vary based on scheduling.
1661 N. Swan Rd., Suite 240, Tucson, AZ 85712. In-person testing required for standardized administration. Clinical interview and feedback components available via telehealth.
Assessment: Adults and adolescents ages 10 and older
Psychotherapy: Adults of all ages
Kevin McKenzie, Psy.D. — Licensed Psychologist, Arizona. Member, National Register of Health Service Psychologists, American Psychological Association, and Southern Arizona Psychological Association.
Good Faith Estimate, Notice of Privacy Practices, and related disclosures.
Under the No Surprises Act, you have the right to receive a Good Faith Estimate (GFE) of expected charges before receiving any scheduled health care service. This applies to clients who are uninsured or who choose not to use their insurance.
A Good Faith Estimate will be provided to you before your first appointment. It will itemize the expected costs of the services discussed, including session fees and anticipated number of sessions or evaluation components.
The Good Faith Estimate is not a contract and does not require you to obtain the services listed. Actual charges may differ if circumstances change. If you receive a bill that is at least $400 more than your Good Faith Estimate, you have the right to dispute the charge.
For questions about your Good Faith Estimate or to request one prior to scheduling, contact: kevin@mckenziepsychology.com or 520.230.2530. For more information about your rights under the No Surprises Act, visit cms.gov/nosurprises.
THIS NOTICE DESCRIBES HOW MEDICAL INFORMATION ABOUT YOU MAY BE USED AND DISCLOSED AND HOW YOU CAN GET ACCESS TO THIS INFORMATION. PLEASE REVIEW IT CAREFULLY.
This Notice of Privacy Practices ("Notice") describes the privacy practices of McKenzie Psychology LLC and its owner, Kevin McKenzie, Psy.D. ("we," "us," or "our"). We are required by law to maintain the privacy of your protected health information ("PHI"), to provide you with this Notice, and to follow the terms of the Notice currently in effect.
We reserve the right to change our privacy practices and the terms of this Notice. If we change our Notice, we will make the updated Notice available to you upon request.
The following describes the ways we may use and disclose your health information without your authorization:
Other uses and disclosures of your PHI not described above will be made only with your written authorization. You may revoke such authorization in writing at any time. The following uses and disclosures require your written authorization regardless of any other provision of this Notice:
We are required by law to maintain the privacy and security of your PHI. We will notify you promptly if a breach occurs that may have compromised the privacy or security of your information. We will abide by the terms of this Notice. We will not use or disclose your PHI other than as described in this Notice, unless you give us written authorization.
If you believe your privacy rights have been violated, you may file a complaint with McKenzie Psychology LLC or with the Secretary of the U.S. Department of Health and Human Services. To file a complaint with us, contact Dr. Kevin McKenzie in writing at the address listed below. We will not retaliate against you for filing a complaint.
U.S. Department of Health and Human Services, Office for Civil Rights: 200 Independence Avenue, S.W., Washington, D.C. 20201 · 1-877-696-6775 · hhs.gov/ocr/privacy/hipaa/complaints
Questions or requests related to your privacy rights should be directed to: Kevin McKenzie, Psy.D. · McKenzie Psychology LLC · 1661 N. Swan Rd., Ste. 240, Tucson, AZ 85712 · 520-230-2530 · kevin@mckenziepsychology.com
Effective date: May 1, 2026
McKenzie Psychology uses AI-assisted tools to support clinical documentation. No identifying client information is entered into any AI tool. All AI-generated content is reviewed and approved by Dr. McKenzie before use or inclusion in the clinical record. This practice does not alter your privacy rights or Dr. McKenzie's obligations to you.
If you have questions about any of the information on this page, please reach out directly.
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