Skip to main content

Catherine Cashman, DO

Staff Psychiatrist
Languages
English
SPECIALTIES
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
Postpartum Depression
Tics/Tourette Syndrome

Education and training

  • New York University, BS
  • University of New Orleans, BS
  • Nova Southeastern University College Of Osteopathic Medicine , DO
  • Louisiana State University Health Sciences Center, Residency
  • Louisiana State University School of Medicine in New Orleans, Fellowship
  • University of Rochester, Fellowship

Get to know

Catherine Cashman, DO

Background and credentials    

Dr. Catherine Cashman is triple board-certified by the American Board of  Psychiatry and Neurology in Adult Psychiatry, Child & Adolescent  Psychiatry, and Forensic Psychiatry. She holds two Bachelor’s degrees: one in  Finance from New York University, and another in Biology from the University  of New Orleans. She earned her medical degree from Nova Southeastern  University and completed an Adult Psychiatry residency at LSU Health Sciences  Center in New Orleans. Dr. Cashman subsequently completed two fellowships:  the first in Child & Adolescent Psychiatry at LSU New Orleans, along with  a certification in Infant Mental Health (working with children ages 0–6 years  and their caregivers); the second fellowship was in Forensic Psychiatry at  the University of Rochester and the Rochester Regional Forensic Unit.    

Treatment approach    

Dr. Cashman brings an extensive and specialized skillset to psychiatry,  informed by her triple board-certifications. Her treatment approach  integrates clinical expertise from adult, child and adolescent, and forensic  psychiatry, emphasizing accurate diagnosis, risk assessment, and  evidence-based care. With specialized expertise in forensic psychiatry and  competency assessments, she employs rigorous evaluation methods to accurately  inform treatment planning and risk management, particularly in complex or  legally-involved cases.    

What you can expect in a first visit    

Patients visiting Dr. Cashman for the first time can expect a detailed and  comprehensive psychiatric evaluation. Given her forensic and clinical  experience, initial assessments are thorough, focusing on clear diagnostic  understanding, individualized risk assessment, and appropriate treatment  planning. Patients can anticipate a collaborative, professional, and  structured environment aimed at clarifying diagnoses and addressing their  unique mental health needs effectively.    

Why Talkiatry?    

We’re a virtual mental health practice that makes it easy to find great  care. We combine quality and convenience to help you thrive—faster. Our  providers, like this one, are highly trained experts who specialize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Get matched with a clinician like this one

Ready to book your first appointment? Take our 10-minute assessment. We’ll match you with a clinician who meets your needs, has availability, and takes your insurance.

Get started
More Clinicians

Megan Marumoto, MD

Staff Psychiatrist

Dr. Megan Marumoto provides holistic and personalized care as an integrative psychiatrist board-certified in General Psychiatry, Child & Adolescent Psychiatry, Integrative Medicine, and Lifestyle Medicine. She takes a root cause approach to treating mental health conditions as a certified Functional Medicine practitioner. Dr. Marumoto treats a wide range of mental health conditions in children, adolescents, and young adults, including ADHD, anxiety, depression, phobias, OCD, and trauma-related conditions. Patients may expect a comprehensive assessment with evidence-based treatment focusing on nutrition and healthy lifestyle interventions as well as medication management in 20�30-minute sessions. She enjoys working collaboratively with therapists and health coaches to achieve the best outcomes. She also provides supportive therapy and other therapies when indicated. She received her medical degree from the John A Burns School of Medicine and completed her Psychiatry Residency and Child & Adolescent Psychiatry fellowship at the University of Hawaii. Wishing to provide comprehensive care beyond medication management and therapy, Dr. Marumoto completed a second fellowship in Integrative Medicine at the University of Arizona. She has over 20 years of clinical experience working with military and civilian populations.

Sarah Ramos, MD

Staff Psychiatrist

Dr. Sarah Ramos, MD, has experience practicing in a variety of outpatient settings, including community mental health and military care, serving active-duty service members, their families, and veterans. She earned her medical degree from Vanderbilt School of Medicine and completed psychiatry residency training at the University of California San Diego and Thomas Jefferson University in Philadelphia.

Dr. Ramos values open communication, privacy, and a collaborative approach with her patients. She creates a warm, supportive environment where individuals feel heard, respected, and empowered to participate in their care.

In initial sessions, Dr. Ramos thoroughly assesses patients’ history, concerns, and goals to ensure care is personalized and effective. She develops comprehensive treatment plans that align with each patient’s objectives, providing ongoing support to help them achieve meaningful outcomes.

Lauren Treharn, PMHNP

Staff Nurse Practitioner

Lauren is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) who earned her Master of Science in Nursing from Kent State University in 2020. She has experience treating a wide range of mental health conditions, including depression, anxiety, psychotic disorders, bipolar disorder, ADHD, OCD, PTSD, and substance use disorders.

Lauren’s approach combines medication management with psychotherapy to create a well-rounded, individualized treatment plan. She takes time to listen to her patients’ concerns, fostering a safe and open environment for dialogue. Her therapeutic methods include supportive therapy, motivational interviewing, and cognitive behavioral therapy. Recognizing that medication alone may not fully address the root causes of distress, she incorporates talk therapy, lifestyle changes, stress management, self-care strategies, supplements, and social health into her care plans.

With a laid-back, non-judgmental, and empathetic style, Lauren collaborates closely with patients to ensure their treatment aligns with their unique needs and goals. Every decision is grounded in evidence-based practices and patient-centered care.

Lauren begins with a comprehensive initial assessment, gathering detailed information about each patient’s mental and physical health history, lifestyle, symptoms, concerns, and goals. This assessment informs a potential diagnosis and serves as the foundation for a personalized treatment plan. Regular follow-up appointments are scheduled to monitor progress, make adjustments as needed, and provide ongoing support.

Mohammed Basith, MD

Staff Psychiatrist

Dr. Mo Basith is a board-certified psychiatrist in the field of general adult psychiatry. He offers a mix of pharmacotherapy in conjunction with psychotherapy in 30-minute sessions. Dr. Basith's approach to clinical practice is rooted in fostering a safe atmosphere in which to explore biological and psychosocial factors that affect mental health. He views medication as a tool that patients can use while also engaging in psychotherapy and making lifestyle changes to optimize their mental health. He encourages patients to be actively involved in their healthcare decisions. Although he has an integrative psychotherapy style, Dr. Basith may occasionally believe additional therapy is needed and ask that you bring a therapist into your care team to provide the best outcome. Dr. Basith received his medical degree at Jefferson Medical College in Philadelphia, Pennsylvania. He then went on to complete a general psychiatry residency training at Penn State College of Medicine in Hershey, Pennsylvania. Since completing his training, Dr. Basith has been working with a wide variety of adults, including as a staff psychiatrist at Georgetown University's Counseling and Psychiatric Service. He has experience treating patients with a wide range of psychiatric concerns including various anxiety disorders, depression, bipolar spectrum disorders, obsessive-compulsive disorder, and substance use disorders. Dr. Basith utilizes pharmacotherapy along with facets of cognitive behavioral therapy, psychodynamic psychotherapy, and supportive therapy as needed.

Ashley Arora, PMHNP

Staff Nurse Practitioner

Ashley is an ANCC board-certified Psychiatric Mental Health Nurse Practitioner with over a decade of experience in Psychiatry. She has worked in inpatient and outpatient settings, crisis centers, and psychiatric emergency rooms. Ashley is deeply committed to working collaboratively with individuals to enhance their well-being, creating a personalized care plan tailored to each person’s unique needs.


Her approach integrates medication management, supportive psychotherapy, and lifestyle interventions. As a prescriber specializing in psychopharmacology, Ashley provides comprehensive medication management while utilizing a shared decision-making model. She actively involves clients in their treatment planning, discussing various options to determine the most effective path forward.


During the initial session, Ashley prioritizes establishing a comfortable, open environment where clients feel at ease. She will review medical and psychiatric history, discuss treatment goals, and explore different therapeutic options based on individual preferences. Ashley encourages questions throughout the process to ensure a collaborative and supportive treatment experience.

Matthew Deise, PMHNP

Staff Nurse Practitioner

Matthew is a board-certified psychiatric mental health nurse practitioner and received his education in this specialty at Maryville University of St. Louis, Missouri.  He has been working in the mental health field for over 20 years and has provided care to patients in diverse care settings including psychiatric hospitals, outpatient mental health centers, psychiatric home health, and telepsychiatry.  Matthew is passionate about expanding access to high quality mental health care to all in need and greatly enjoys collaborating with patients from diverse backgrounds.  In his free time, he enjoys hiking, camping, reading, traveling, and searching for the best Mexican food around.  

Patients working with Matthew should know that he utilizes a very collaborative approach to patient care.  He does not assume that he knows what's best for patients but works closely with them to find the most appropriate and effective treatment plan for the unique individuals that he treats.  For Matthew, safety is always the first priority, but he does not believe in a "one size fits all" approach to mental health care and is focused on tailoring the treatment to the patient.  Matthew utilizes an empathic approach to mental health treatment and patients will feel heard and valued.  

Matthew's process for working with patients includes a thorough psychiatric evaluation at the initial appointment to make sure we are getting to the right diagnosis and remaining on track to improve the patient's mental health. Follow-up appointments are focused on monitoring for progress or regression and working collaboratively to meet mutually agreed upon goals. Collaboration is key!

Ready to get matched?

Start our short assessment
Specialties
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
Postpartum Depression
Tics/Tourette Syndrome
States
New York
Louisiana
Languages
English
Takes insurance
Virtual visits
12 years experience