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Caleb Cheatham, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+

Education and training

  • University of Tennessee College of Medicine Doctor of Medicine

Get to know

Caleb Cheatham, MD

Dr. Caleb Cheatham is a board-certified psychiatrist who completed his undergraduate studies at Stetson University in DeLand, FL, before earning his medical degree and completing his psychiatry residency at the University of Tennessee Health Science Center in Memphis, TN. He brings a strong foundation in psychopharmacology and a deep commitment to person-centered care.

Dr. Cheatham takes an open, nonjudgmental approach and strives to create a safe space for patients to share vulnerably. He believes in leading with compassion and listening as a core tool for understanding. His treatment philosophy is integrative—combining thoughtful medication management with supportive, individualized therapy—and he encourages patients to consider the role of lifestyle factors like sleep, nutrition, and exercise.

Dr. Cheatham begins with a conversational consultation focused on understanding each patient’s story and needs. Together, they co-create a personalized treatment plan grounded in the patient’s values. He emphasizes clear communication and routinely revisits treatment goals to ensure alignment, progress, and ongoing support.

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Xiomara Nieves-Alvarado, MD

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Dr. Nieves-Alvarado is a Board-certified psychiatrist who completed medical training at Duke University Psychiatry Program. Originally from Puerto Rico, she is fluent in both English and Spanish, which allows her to connect deeply with a diverse patient population.

Her practice combines medication management with insight-oriented therapy during every visit, promoting a comprehensive approach to mental health care. She advocates for her patients to engage in therapy alongside medication management, as she believes this integrated approach leads to better outcomes and sustained improvement. Dr. Nieves-Alvarado's practice is rooted in a collaborative, team-based approach, working closely with her patients to achieve long-term mental wellness.

Dr. Nieves-Alvarado earned her medical degree from the Universidad Central del Caribe School of Medicine in Bayamon, PR. Afterward, she moved to North Carolina, where she completed her residency at Duke University Hospital. During her training, she was nominated for a fellowship in psychodynamic practice by the Psychoanalytic Center of the Carolinas, showcasing her expertise in this area. She is also a dedicated advocate against childhood sexual trauma.

Her diverse training includes significant experience in jail and forensic psychiatry, as well as the treatment of military veterans under the veteran affairs health care system. She has experience in medically assisted treatments (MAT) for substance use disorders, Electroconvulsive therapy (ECT), and family therapy, enabling her to care for patients with complex needs.

Dr. Nieves-Alvarado treats patients across a wide age range, from young adults to the elderly. Passionate about improving access to mental health care, she joined Talkiatry to help patients facing time or transportation challenges receive the care they need.  

In addition to her clinical practice, Dr. Nieves-Alvarado remains involved with her alma mater’s Behavioral Health Department, contributing to academic education and maintaining a connection with the next generation of medical professionals. She continues to seek ongoing improvement in her field, remaining engaged with medical associations including North Carolina Psychiatric Association, American Psychiatric Association, and Alpha Omega Alpha national medical honor society. Dr. Nieves-Alvarado is committed to working hand-in-hand with her patients to achieve mental wellness.”

Tyler Scott Alderette, MD

Staff Psychiatrist

Dr. Tyler Alderette is a board-certified psychiatrist with experience treating patients in outpatient and telehealth settings. He earned his medical degree from the American University of the Caribbean School of Medicine and completed his psychiatry residency at Larkin Community Hospital in Miami, Florida. His clinical interests include depression, bipolar disorder, anxiety disorders, ADHD, trauma-related conditions, psychotic disorders, and substance use concerns. Dr. Alderette provides evidence-based medication management integrated with psychotherapy-informed care and is committed to staying current with advances in psychiatric treatment to ensure safe and effective care.

Dr. Alderette strives to create a warm, nonjudgmental, and respectful environment where patients feel comfortable sharing their experiences. His approach is collaborative and patient-centered, working closely with patients to set clear goals and select treatments aligned with their values. He takes a whole-person approach, considering mental health alongside sleep, relationships, medical conditions, culture, and life stressors, and provides affirming, inclusive care for patients of all ages and backgrounds.

Dr. Alderette begins with a comprehensive evaluation to understand each patient’s history, current concerns, and personal goals. Treatment plans are individualized and may include medication management along with supportive therapy, cognitive behavioral therapy (CBT), and motivational interviewing. Follow-up visits focus on progress, side effect management, and ongoing adjustments, with an emphasis on education, open dialogue, and long-term stability.

Lynnea Carder, MD

Staff Psychiatrist

Dr. Carder has been practicing for over 20 years in general adult psychiatry. She is board certified by the American Board of Psychiatry and Neurology and has a certification in Elder Law. She has advanced training in psychopharmacology, which she earned with distinction. Dr. Carder's practice focuses on medication management. Typically, she offers this in conjunction with supportive therapy in 30-minute follow-up visits. However, occasionally Dr. Carder may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. She received her medical degree from the University of Toledo, College of Medicine and Life Sciences, where she was given the outstanding medical student award by the Department of Head and Neck Surgery. She completed her internship with the Department of Family Medicine and completed her residency with the Department of Psychiatry both at the University of Toledo, College of Medicine and Life Sciences. Throughout her career, she has been the Medical Director of two Community Mental Health Centers and is also the Corporate Medical Director for a company providing neuropsychiatric and general psychiatric care to patients residing in nursing facilities. She received her certification in Elder Law through the Mitchell Hamline School of Law. She has also been a preceptor for numerous universities and has trained advanced practice providers in psychiatry. In addition to general adult and geriatric psychiatry, Dr. Carder's areas of interest include complex psychiatric and medical conditions, neuropsychiatric issues, and treatment-resistant cases. She enjoys using her medical expertise to solve difficult cases. She has an interest in exploring combined traditional psychiatric practice with complementary and holistic approaches to treatment and believes in keeping her patients healthy rather than only addressing illness.

Briana Mathews, MD

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Cory Alfers, DO

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Dr. Alfers is a board-certified psychiatrist specializing in adult psychiatry. He has been practicing for over 11 years. He completed his undergraduate education at Virginia Tech, graduating Cum Laude with degrees in Biology and Chemistry. Following graduation, he attended a research internship at the National Institutes of Health where he received a Post-baccalaureate Intramural Research Training Award. Dr. Alfers completed his medical degree from the Western University of Health Sciences in Pomona, CA. He completed his General Psychiatry Residency at Georgetown University, where he served as Chief Resident. After residency, he entered private practice in McLean, VA. Dr. Alfers takes a comprehensive approach to patient care. He integrates biological, psychological, and environmental factors into treatment planning. He focuses on developing a meaningful therapeutic relationship and providing medication interventions for specific treatment goals. Dr. Alfers provides interpersonal psychotherapy in conjunction with medication management services. Dr. Alfers has a special interest in the treatment of multiple mental health conditions, including depression, anxiety, bipolar disorder, PTSD, ADHD, and OCD. Dr. Alfers treats adults ages 18 to 65 years old. For established patients of Dr. Alfers, please call 917-634-5311 to schedule an appointment and let the care coordinator know you are an established patient.

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Specialties
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
LGBTQIA+
States
New York
Tennessee
Colorado
Languages
English
Takes insurance
Virtual visits
years experience