Meet Our Clinical Team.
The Evidence-Based Treatment Institute is a boutique specialist practice. Every clinician here has spent their career going deep into a specific clinical territory: not a generalist with a broad caseload, but a true specialist who delivers that expertise with fidelity, warmth, and clinical precision. We see patients in person in Boca Raton, Houston, Chicago, and Denver (with in-person caregiver mentorship in Austin) and by secure telehealth in 40+ PSYPACT states, with added licensure in New York and Hawaii. Wherever you are, the whole team is available to you.
Request a ConsultationOur Clinicians.
Find The Right Fit
Choose any that apply and we'll highlight the clinicians who match. And if you're not sure, that's fine. Tell us what's going on and we'll match you ourselves.
Not sure between them? Request a consultation. Tell us what you're seeing and we'll confirm the match.
Co-Founder & Director
Zach Appenzeller, PsyD
Licensed Psychologist
Co-Founder & Director
Allie Appenzeller, PsyD
Licensed Psychologist
Renée D. Rienecke, PhD, FAED
Licensed Psychologist
Kimberly Osborn, PhD
Licensed Psychologist
Kaitlin Hill, PhD
Licensed Psychologist
Eliza Lanzillo, PhD
Licensed Psychologist
Nina Jolly
Caregiver Peer Mentor
Natalia Levy, PhD
Licensed Psychologist
You?
PhD/PsyD · MD/DO · RD/RDN · PMHNP · APRN · PA-C · LCSW · LMSW · LPC/LMHC/LPCC · LMFT · LPA · BCBAThe Standard That Applies Across Our Entire Team.
Every clinician at the Evidence-Based Treatment Institute works within the same clinical framework and upholds the same commitments. These are not aspirations; they are requirements.
Formulation before intervention
Before intervention begins, our team deeply conceptualizes the concerns each patient brings, developing a clear understanding of what is actually maintaining the difficulty, beneath the diagnosis. That conceptualization becomes the clinical roadmap that guides treatment.
Fidelity to the evidence base, always
ERP delivered halfway is not ERP. FBT without adherence is not FBT. Every clinician delivers the evidence-based approaches the way the evidence supports, not an approximation of them.
Active treatment
Treatment here is something you actively do, not just talk about. It's built around measurable goals and honest progress monitoring throughout. Our intention is to work ourselves out of a job: to help you genuinely improve and get your life back, so you don't have to be in therapy forever.
Supervision and consultation
Every clinician works within a collaborative team structure, where we all meet regularly to discuss our cases, to ensure the highest quality of care is always being provided.
Honest guidance on fit
If a particular clinician isn't the right fit for a situation, we say so, and help connect the patient with whoever on the team is best suited to their specific needs.
Coordinated care
Every clinician coordinates with the other members of each patient's treatment team (physicians, dietitians, prescribers, and outside providers) so nothing about a patient's care happens in a silo.
We're Building Something Worth Being Part Of.
The Evidence-Based Treatment Institute is a practice where specialist clinicians do the best work of their careers, with a caseload matched to their training, access to expert supervision, and a clinical culture that takes evidence-based practice seriously. If that sounds like the kind of place you've been looking for, we'd love to hear from you.
Get in TouchNot Sure Which Clinician Is Right for You?
You don't need to know which clinician you want before you reach out. Tell us what's going on in your new patient inquiry and we'll match you with the person whose expertise and approach best fit your situation.
A clinician, not a scheduler, responds to every inquiry within one business day.
Request a Consultation