RxNeuroscience is a private telepsychiatry practice offering subspecialty-level care in addiction psychiatry, geriatric psychiatry, ADHD, and obesity medicine — from two of the country's most credentialed psychiatrists, from the privacy of your home.
Two quadruple board-certified psychiatrists
Addiction · Geriatric · ADHD · Obesity medicine
HIPAA-secure video, any device
California and Arizona
Addiction psychiatry
Comprehensive evaluation and medication management for substance use disorders — alcohol, opioids, stimulants, and behavioral addictions — with attention to co-occurring psychiatric conditions.
Geriatric psychiatry
Specialized care for adults 65 and older, with expertise in dementia, late-life depression and anxiety, complex psychopharmacology, polypharmacy review, and caregiver support.
ADHD & general psychiatry
Expert evaluation and management of ADHD in adults, alongside comprehensive psychiatric care including depression, anxiety, bipolar disorder, OCD, PTSD, and treatment-resistant conditions.
A rare depth of expertise, in one practice.
Drs. Joshi and Rymowicz hold quadruple board certification and remain active as national leaders, academic faculty, and published scholars.
Pallavi Joshi, D.O., M.A.
Fellow, APA · Yale geriatric psychiatry · Quadruple board-certified
Robert Rymowicz, D.O.
Fellow, ASAM & APA · UCLA addiction fellowship · Quadruple board-certified
What sets this practice apart.
Subspecialty-level care in private practice
Academic medical center expertise without institutional friction.
Unhurried, individualized appointments
No volume-driven schedules. Each patient receives the time their case requires.
Complete discretion
No waiting rooms. A confidential, direct physician relationship.
Complex cases welcomed
Treatment-resistant conditions, polypharmacy, diagnostic uncertainty — where subspecialty expertise matters most.
Current on the science
Active researchers and national leaders — bringing the latest evidence to patient care.
The care you deserve,
from physicians who have earned it.
Expert psychiatric care for yourself, a family member, or a patient. Complex cases welcome.
Most patients seeking subspecialty psychiatric care face a frustrating reality: the physicians with the deepest expertise are largely inaccessible in private practice. RxNeuroscience was built to change that.
We offer direct access to two of the most credentialed psychiatrists in the country — delivering care with the time, attention, and clinical depth that complex patients deserve via telehealth in California and Arizona.
To make the highest level of psychiatric expertise genuinely accessible.
Patients navigating addiction, aging, ADHD, or complex psychiatric illness deserve more than a brief appointment with a generalist. They deserve a physician who has devoted their career to understanding conditions like theirs.
Our mission is to deliver that level of care — directly, personally, and without the friction of institutional medicine.
"Every patient deserves a physician who has the time to understand them, the training to help them, and the intellectual honesty to say when something is complex."
At RxNeuroscience, care is individualized by design. Each appointment is unhurried, each treatment plan built from first principles.
We welcome complexity — patients who have tried multiple treatments without lasting benefit, or who simply want a physician who will think carefully.
Quadruple board-certified
Certification across psychiatry, addiction, geriatric psychiatry, and obesity medicine — rare in private practice.
Academic faculty & researchers
Faculty positions, fellowship leadership, and peer-reviewed research keep clinical practice at the leading edge.
Unhurried & private
No waiting rooms. No referral networks. A direct relationship with your physician.
Complex cases welcomed
Treatment-resistant presentations, diagnostic uncertainty — where subspecialty expertise matters most.
If you are seeking expert psychiatric care, we invite you to reach out.
Complex cases welcome. Patients must be in California or Arizona. Self-pay practice.
Board-certified expertise across general psychiatry, ADHD, addiction, geriatric psychiatry, and obesity medicine.
Not sure which specialty applies to you?
Many patients present with overlapping concerns. Our physicians welcome cases that have proven difficult to place elsewhere.
Two quadruple board-certified psychiatrists whose combined expertise spans addiction psychiatry, geriatric psychiatry, ADHD, general psychiatry, and obesity medicine.
Psychiatrist · Co-founder · RxNeuroscience
Dr. Joshi is a quadruple board-certified psychiatrist whose career sits at the intersection of geriatric psychiatry, addiction medicine, and Alzheimer's disease research. She completed her geriatric psychiatry fellowship at Yale School of Medicine and her psychoanalytic training in New York, before joining Banner Alzheimer's Institute and the University of Arizona College of Medicine.
A recipient of the APA's Hartford-Jeste Award — the field's most distinguished recognition in geriatric psychiatry — Dr. Joshi is a funded Alzheimer's disease researcher, active clinical trialist, and author of more than 30 peer-reviewed publications.
Psychiatry · ABPN · 2020
Geriatric psychiatry · ABPN · 2022
Addiction medicine · AOA · 2025
Obesity medicine · ABOM · 2025
Fellowship in Geriatric Psychiatry
Yale School of Medicine · 2020–2021
Fellowship in Psychoanalysis
Psychoanalytic Association of New York, NYU Langone · 2019–2020
Psychiatry Residency (Chief Resident)
Northwell Health – Staten Island University Hospital · 2016–2020
D.O. · Western University of Health Sciences, 2016
M.A. Boston University 2010 · B.A. cum laude, Phi Beta Kappa 2008
Program Director, Geriatric Psychiatry Fellowship
University of Arizona College of Medicine–Phoenix · 2024–2026
Assistant Professor of Clinical Psychiatry · University of Arizona College of Medicine–Phoenix · 2021–present
Geriatric Psychiatrist & Dementia Specialist · Banner Alzheimer's Institute · 2021–present
Co-Principal Investigator · Alzheimer's Clinical Trials Consortium · 2023–present
APA Council on Geriatric Psychiatry · 2024–present
APA Council on Research · 2024–present
AAGP Scholars Program Committee Chair · 2023–2025
Vice President · Arizona Psychiatric Society · 2025–present
Joshi, P. et al. Major Neurocognitive Disorders due to Alzheimer's Disease. Springer, 2024. [first author]
Joshi, P., Hendrie, K. et al. Social connections as determinants of cognitive health in AD. International Psychogeriatrics, 2024. [first author]
Joshi, P., Rymowicz, R. et al. Opioid Use and Use Disorder Among Older Adults. APA Publishing, 2024.
30+ publications at APA, AAGP, AAAP (2014–2025).
Seeing patients in California and Arizona · Self-pay practice.
Psychiatrist · Co-founder · RxNeuroscience
Dr. Rymowicz is a quadruple board-certified psychiatrist who trained in addiction psychiatry at UCLA and in psychoanalysis at the Psychoanalytic Association of New York. He served as Chief Resident at Rutgers and has since held clinical directorship roles, academic appointments, and national leadership positions in the APA and AAAP.
Currently serving as Director of Substance Use and Addiction Treatment at CHI Health and Expert Consultant for Arizona at the Opioid Response Network.
The highest possible qualifications in addiction medicine
Dr. Rymowicz holds dual board certification in addiction psychiatry (ABPN) and addiction medicine (ABPM), complemented by a UCLA addiction psychiatry fellowship — the most rigorous credentialing available in the field.
Psychiatry · ABPN · 2020
Addiction psychiatry · ABPN · 2023
Addiction medicine · ABPM · 2025
Obesity medicine · ABOM · 2025
Fellowship in Addiction Psychiatry
UCLA David Geffen School of Medicine · 2020–2021
Fellowship in Psychoanalysis
Psychoanalytic Association of New York · 2019–2020
Psychiatry Residency (Chief Resident)
Rutgers New Jersey Medical School · 2016–2020
D.O. · Western University of Health Sciences, 2016
Away rotations: Austen Riggs · Johns Hopkins · Children's Hospital of Philadelphia
Medical Director · RxNeuroscience · 2020–present
Director of Substance Use & Addiction Treatment · CHI Health
Nebraska, Iowa, North Dakota & Minnesota · 2025–present
Expert Consultant for Arizona · Opioid Response Network · 2025–present
Assistant Clinical Professor · Creighton University School of Medicine · 2025–present
APA PAC Board of Directors · 2024–2027
Board of Directors · AAAP · 2020–2022
APA Foundation Leadership Fellow & Vice-Chair · 2019–2021
Fellow · ASAM & APA
Joshi, P., Rymowicz, R. et al. Opioid Use and Use Disorder Among Older Adults. APA Publishing, 2024.
Rymowicz, R. Internet Gambling: An Old Behavior in a New Age. APA Publishing, 2021.
Rymowicz, R. et al. Food Addiction in Psychiatric Practice: Emerging Roles for GLP-1 Receptor Agonists. AAAP Annual Meeting, 2025.
25+ abstracts and workshops at APA, AAAP, ASAM (2013–2025).
Seeing patients in California and Arizona · Self-pay practice.
Subspecialty-level psychiatric services to individuals, and collaborative engagements with treatment programs and professional organizations. All clinical care via HIPAA-secure telehealth in California and Arizona.
General psychiatry & ADHD
Comprehensive psychiatric evaluation, diagnosis, and medication management — including expert ADHD evaluation in adults.
Addiction psychiatry & addiction medicine
Expert evaluation and MAT for substance use disorders. Dr. Rymowicz holds dual certification in addiction psychiatry and addiction medicine — the highest possible credentialing.
Geriatric psychiatry
Specialized care for adults 65+, with depth in Alzheimer's disease, dementia-related behavioral symptoms, late-life depression, polypharmacy, and ADHD presenting in later life.
Obesity medicine & metabolic psychiatry
Psychiatric care at the intersection of mental health and metabolic medicine — food addiction, GLP-1 receptor agonist therapy, and psychotropic-related weight effects.
Clinical services
Geriatric psychiatry
Yale fellowship · ABPN board-certifiedDr. Joshi is a Yale-trained, ABPN board-certified geriatric psychiatrist and recipient of the APA Hartford-Jeste Award — the field's most distinguished recognition for contributions to geriatric psychiatry. She brings expertise in the full spectrum of late-life psychiatric presentations: Alzheimer's disease and related dementias, neuropsychiatric symptoms of dementia, late-life depression and anxiety, and the complex interplay of psychiatric illness and cognitive decline. She is an active clinical trialist and first-author of multiple peer-reviewed publications on dementia care.
Deprescribing & polypharmacy
Older adults are frequently prescribed multiple medications by multiple providers, creating a complex and sometimes harmful drug burden. Dr. Joshi specializes in careful, evidence-based deprescribing — reducing or discontinuing medications whose risks outweigh their benefits, with attention to cognitive, functional, and quality-of-life outcomes.
Addiction treatment for older adults
Substance use disorders in later life are frequently underrecognized and undertreated. Dr. Joshi combines her board certification in addiction medicine with her geriatric psychiatry subspecialty to offer expert evaluation and management — including alcohol use disorder, opioid use disorder, and prescription medication misuse — with particular attention to the unique pharmacology and medical complexity of aging patients.
ADHD in later life
ADHD is frequently undiagnosed or misdiagnosed in older adults, where symptoms may overlap with cognitive decline, mood disorders, or the effects of polypharmacy. Dr. Joshi offers expert evaluation of ADHD presenting in later life — carefully distinguishing attentional and executive deficits from dementia-related symptoms — and provides individualized treatment with attention to the unique pharmacological considerations of the aging brain.
Clinical services
ADHD
Hypoactivity in the frontal lobe may lead to deficits in focus, concentration, task salience, and difficulty controlling impulsive or appetitive behaviors. Dr. Rymowicz is an expert in treating ADHD in adults using all available treatment modalities.
Outpatient detox
Dr. Rymowicz has experience treating withdrawal from the hospital and the home. Outpatient detox treatment, done safely at home, is often possible.
Benzodiazepine discontinuation
Sedative-hypnotic withdrawal is notoriously difficult. Dr. Rymowicz is an expert in benzodiazepine discontinuation, offering both anticonvulsant-supported rapid tapers and slow, gentle tapers — in accordance with patient preference.
Medication-assisted treatment
Dr. Rymowicz is an expert in the medication-assisted treatment of substance use disorders, with noted expertise in opioid, stimulant, and alcohol use disorders, offering all available treatments except methadone.
General psychiatry
Dr. Rymowicz has extensive experience treating general psychiatric disorders across all treatment settings — from outpatient to acute inpatient to the long-term treatment of the criminally insane. He has experience treating first responders with PTSD.
Referral to treatment
Where Dr. Rymowicz is unable to provide treatment directly, he is able to use his professional connections to make the best possible referrals.
Food addiction
Leading expert · Emerging fieldDr. Rymowicz is a leading expert in the emerging field of food addiction, having given the first presentations on the topic at the annual meetings of national conferences. As the science progresses and more effective medications become available, we now have highly effective treatments for distressing thoughts about food and for weight loss.
Recovery programs require psychiatrists who understand addiction at a clinical and regulatory level. RxNeuroscience offers direct engagement with programs seeking expert psychiatric services or medical director leadership.
Staff psychiatrist
Psychiatric intake evaluations, MAT induction and management, ADHD and co-occurring disorder diagnosis, medication management, crisis assessment, and discharge planning.
Medical director
Clinical protocol development, regulatory compliance oversight, staff training, quality assurance, MAT program implementation, and program development consultation.
The highest possible qualifications in addiction medicine
Dr. Rymowicz holds dual board certification in addiction psychiatry and addiction medicine, is a Fellow of both ASAM and the APA, and has served as addiction psychiatry director across multiple states.
We respond to every inquiry personally within 1–2 business days.
We respond personally within 1–2 business days.
Self-pay practice — no insurance accepted.
All visits via HIPAA-secure video only.
Patients must be located in California or Arizona.
Pallavi Joshi, D.O., M.A.
Geriatric psychiatry · Addiction · ADHD · Obesity medicine
Robert Rymowicz, D.O.
Addiction psychiatry · Addiction medicine · ADHD · Obesity medicine
Emergency: 911
988 Suicide & Crisis Lifeline
SAMHSA: 1-800-662-4357