Giulia Ferrero, LCSW

Ms. Ellen Ortiz is fully licensed as a Marriage and Family Therapist in multiple states. She has decades of life experience to support her 3 years of full licensure. Ms. Ortiz sees individuals from the perspective of the various environments they interact in and how it impacts them. Ms. Ortiz is enthusiastic about collaborating with clients under the care of one of our psychiatric experts in order to allow for a more complete and personalized approach for each individual's needs.
Ms. Ortiz began her education later in life at Elgin Community College then continued to acquire her bachelor’s degree from Argosy University with honors. Ms. Ortiz forged ahead and completed her Master’s in Family Counseling at the CACREP accredited graduate school, Northeastern Illinois University. Her training included the externship for Emotion Focused Therapy with Dr. Sue Johnson.

Ms. Ortiz incorporates therapy from a Solution Focused perspective including Cognitive Behavioral Therapy, Mindfulness and Attachment theory.  Ms.Ortiz has been trained in Crisis Intervention and Trauma Informed therapy. Her life experience and clientele have spanned all life cycles, races, and medical needs as well as honoring all varieties of human beings. She has also supported clients through medical diagnosis and end of life as well as grief.

Ms. Ortiz brings enthusiasm for each client based on the belief that each person has unique purpose, strengths and abilities on which to draw on. The client's abilities paired with tools and support acquired in therapy will lead each of her clients to a life they choose to enhance.

Keesha Barthelemy is a Licensed Mental Health Counselor, and a Credentialed Alcoholism and Substance Abuse Counselor Level-2. She has extensive experience working in the mental health and addictions field with adolescents, emerging adults, adults, and families. Keesha has worked directly with clients of various demographics, living with a variety of mental health conditions. She obtained her Undergraduate degree in Psychology from Hofstra University on Long Island, NY, and her graduate degree from Mercy University in Westchester, NY. Keesha has been practicing for 3 years as a Licensed Mental Health Counselor, focusing on anxiety, mood disorders, addictions, and families. Treatment is tailored to the individual, with a foundation in cognitive-behavioral therapy, rational-emotive behavior Therapy, and mindfulness. Furthermore, Keesha has experience working with individuals seeking Faith-based Therapy, with a focus on Christianity and Catholicism. Keesha's vast clinical background has assisted in her development as a well-rounded counselor. She prides herself on possessing great interpersonal skills, and building therapeutic relationships in an effort to assist with growth, healing, and flourishment.

Jennifer Phillips is a Licensed Clinical Social worker who has worked in the mental health field since 2013.  During graduate school, Jennifer completed her internships at the Tuscaloosa County jail, the University of Alabama Student Veterans Center, and the Birmingham Veteran’s Affairs Medical Center in their Health Care for Homeless Veterans program.  Jennifer went to undergraduate and graduate schools in Alabama and moved to Arizona in 2013 to work with the Department of Veterans Affairs to continue working with homeless veterans.  Jennifer also has experience teaching at Pima Community College and is a clinical supervisor for associate level clinicians through the Arizona Board of Behavioral Health Examiners.  

Jennifer’s prior working experience and training has been with adults, homeless veterans, Native Americans, LGBTQIA, women, and individuals in rural or remote areas, providing access to much needed mental health services in provider shortage areas.  She enjoys working with patients who have anxiety, depression, insomnia, mood disorders, and self-esteem issues.  She is trained in geriatrics and especially loves working with adults over the age of 65.  

Jennifer is trained in Cognitive Behavioral Therapy, Cognitive Behavioral Therapy for Insomnia, Dialectical Behavioral Therapy, Mind-Body Approach, Mindfulness-Based Therapy, and Prolonged Grief Disorder (where the patient is experiencing grief for at least 12 months).  As she is trained in several different treatment modalities, Jennifer can customize therapy to meet everyone’s needs.

Mary Ewers is a Licensed Clinical Social Worker with over 12 years of experience supporting adults navigating stress, anxiety, depression, trauma, and chronic illness. She has worked with individuals from many backgrounds, including Veterans and caregivers. Her approach is grounded in empathy, respect, and genuine connection, and she tailors her work to each person’s unique needs and goals.

Mary believes therapy should feel safe, collaborative, and empowering. She welcomes patients exactly as they are and creates space where they can feel heard, understood, and supported. Clients often describe her as warm, honest, compassionate, and easy to talk to. She brings creativity and a down-to-earth presence to each session, helping patients feel comfortable as they work through life’s challenges.

Mary begins by learning what matters most to each patient and exploring what may be getting in the way of their well-being. She incorporates Cognitive Behavioral Therapy, Motivational Interviewing, Solution-Focused Therapy, and mindfulness practices to build practical tools for change. Her goal is to help patients reconnect with balance, purpose, and joy while guiding them toward meaningful, lasting growth.

Eva Sleczka LCSW has a wealth of experience and a passion for integrated patient care. Eva Sleczka, LCSW brings a unique blend of expertise and compassion that is sure to benefit psychotherapy patients. Eva Sleczka, LCSW is a broadly accomplished social worker with years of experience in hospital health-based and community-based human services environments. Eva Sleczka LCSW has an impressive background in the behavioral health field, holding an MSW, LCSW from New York University and specializing in behavioral health psychotherapy with adults, children and families. They have spent 30 years working in various healthcare settings, including health and hospital systems, emergency room and screening center for psychiatric emergency services, school-based and community-based outpatient treatment settings, where they have honed their skills and gained valuable experience in patient care. Their commitment to staying abreast of the latest advancements in behavioral health science ensures that our patients receive the highest quality of psychotherapy care. One of the key strengths Eva Sleczka, LCSW, brings to our team is their expertise in integrative care and trauma-informed psychotherapy, skilled with adults and families with mental health needs. They have a proven track record of clinical supervision of social work students in the field, experience as a Clinical Director of a community mental health setting, psychotherapist for adults, children, and families with mental health needs, making them a valuable resource for both our patients and our staff. Whether it's managing complex cases, providing preventive care, or offering specialized treatments, supervision of social work students Eva Sleczka, LCSW is dedicated to delivering comprehensive and personalized care to each patient. At the core of Eva Sleczka, LCSW's practice is a patient-centered approach that prioritizes the individual needs and preferences of each patient. They believe in fostering strong clinician-patient relationships built on trust, empathy, and open communication. By involving patients in their own care decisions and providing education about their health, Eva Sleczka, LCSW, empowers patients to take an active role in their well-being. Eva Sleczka, LCSW utilizes cognitive behavioral therapy (CBT), focusing mainly on acceptance and commitment therapy (ACT) and incorporating mindfulness into a wellness-based approach.

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.