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David Sahadevan, MD

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David Sahadevan, MD

Staff Psychiatrist

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Dr. Sahadevan is licensed to see patients in the following states.

available in
California
Ohio
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Biography

I took an adventurous path to Talkiatry. After perhaps thinking a little too hard about Intro to Philosophy in college — "the unexamined life is not worth living" — I first used my chemistry degree to work in pharmaceutical research. I changed course, working in computer network engineering, before deciding to find a more meaningful path. I worked as an EMT, then earned a Master's in Physiology before finally landing in medical school at Ohio State.

Finding a surprising interest in psychiatry, I stayed at Ohio State for residency, and then a fellowship in forensic psychiatry. I am board-certified in both Psychiatry and Forensic Psychiatry. I previously worked as a forensic psychiatrist and evaluator at Ohio's maximum-security state psychiatric facility, as an attending psychiatrist running an inpatient unit for violent or dangerous patients, performing court-ordered evaluations, writing reports, and testifying when necessary. I have also worked as a consultation-liaison psychiatrist, performing psychiatric consults at several general hospitals in Central Ohio's largest hospital system.

I found great enjoyment in teaching successive generations of residents and medical students, serving as an adjunct faculty member at Ohio State, Ohio University, Wright State, and OhioHealth Riverside Methodist Hospital. I am excited for the next chapter of my journey, exploring another area of psychiatry at Talkiatry.

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Expertise and specialties

ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Geriatric
Medication Management

Education and training

  • Ohio State University College of Medicine Doctor of Medicine (MD)
  • University of Cincinnati College of Medicine Master of Science (MS)

Location

Timezone

Eastern

Licensed in

Languages spoken

English

In-network insurance

Aetna
Blue Cross Blue Shield
Cigna
ComPsych
Elevance Health
Humana
Kaiser
Magellan
Magnacare
Medicaid
Medicare
Provider Network of America
Quest
UnitedHealthcare
Uprise
Velocity

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Dr. Kyle Still is a Doctor of Osteopathic Medicine who earned his medical degree from Western University and completed his psychiatry residency at the University of Hawaii. He is dedicated to providing compassionate, evidence-based psychiatric care tailored to each patient’s unique needs.

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Dr. Enedina Berrones is a psychiatrist with experience practicing in outpatient settings. She earned her medical degree from Central America Health Sciences University School of Medicine and completed her psychiatry residency at Case Western Reserve University School of Medicine MetroHealth Program in Cleveland, Ohio.

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Dr. Berrones begins by gaining a thorough understanding of each patient's history, concerns, and goals during the initial visit. She then develops individualized treatment plans that align with each patient's needs and treatment goals.

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Taylor Goldman, MD

Taylor Goldman, MD

Dr. Taylor Goldman is a physician who earned a medical degree from the USF Morsani College of Medicine in Tampa, Florida, and completed psychiatry residency training at Jefferson Einstein in Philadelphia.

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She takes time to understand each patient as an individual, exploring symptoms in the context of personal history and lived experience. He works collaboratively with patients to identify priorities, clarify goals, and develop realistic, achievable treatment plans that evolve over time.

Licensed in

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View bio
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View Sabrina McDonald, DO

Sabrina McDonald, DO

Sabrina McDonald, DO

Dr. Sabrina McDonald earned her medical degree from Liberty University College of Osteopathic Medicine and completed her residency at Arnot Ogden Medical Center. She has experience practicing in both inpatient and outpatient settings, with additional work providing psychotherapy. Dr. McDonald also has experience integrating lifestyle modifications into clinical care to support overall well-being.

Dr. McDonald brings warmth and curiosity to every clinical interaction while providing thoughtful, evidence-based treatment recommendations. She takes a holistic approach to care, considering both organic and psychosocial factors that may contribute to a patient’s symptoms and overall functioning. She values collaboration and uses a structured, concise approach to goal setting to help patients make meaningful progress.

Dr. McDonald focuses on understanding each patient’s unique story to guide individualized treatment planning. She explores current concerns, life stressors, and personal goals to inform ongoing care. By considering stress responses from multiple perspectives, she helps patients develop a flexible and deeper understanding of their experiences while creating treatment plans tailored to their needs.

Licensed in

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View bio
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View Neal Palmreuter, MD

Neal Palmreuter, MD

Neal Palmreuter, MD

Dr. Neal Palmreuter is a board-certified psychiatrist with experience across inpatient, outpatient, and community behavioral health settings. He earned his medical degree from Wayne State University School of Medicine and completed his psychiatry residency at the Naval Medical Center in Portsmouth, Virginia. Before joining Talkiatry, he served as an attending psychiatrist and clinical leader, specializing in psychopharmacology, psychotherapy, and integrated care for mood, anxiety, and trauma-related disorders.

Dr. Palmreuter brings a calm, steady presence and believes the best care is built on trust, clear communication, and collaboration. He takes time to explain diagnoses and treatment options, tailoring care to each patient's unique needs, strengths, and experiences. He strives to create a supportive environment where patients feel heard, respected, and empowered.

Dr. Palmreuter begins with a comprehensive evaluation of each patient's history, concerns, and goals. He develops individualized treatment plans that may include medication, therapy, and lifestyle strategies, then regularly reviews progress and adjusts care as needed to support lasting emotional wellness.

Licensed in

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View Lana Hanna, MD

Lana Hanna, MD

Lana Hanna, MD

Dr. Lana Hanna earned her medical degree from the University of California, Riverside School of Medicine, where she also completed her psychiatry residency. She has experience treating a broad range of mental health conditions, including depression, mania, anxiety, PTSD, ADHD, and schizophrenia, across both inpatient and outpatient settings. Her training has focused on providing care for diverse and historically underserved populations, including veterans, LGBTQ+ patients, immigrants, and individuals from rural, low-income, and marginalized communities.

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Harish Mangipudi, DO

Harish Mangipudi, DO

Dr. Harish Mangipudi is a board-certified psychiatrist with more than 10 years of experience treating patients in both inpatient and outpatient settings. He completed a combined five-year residency in Internal Medicine and Psychiatry at the Medical University of South Carolina, where he served as PGY-5 Chief Resident. His training provides a strong foundation in psychiatric diagnosis, psychopharmacology, psychotherapy, and the medical factors that can influence mental health.

Dr. Mangipudi brings a comprehensive and thoughtful approach to care, drawing on extensive experience treating a wide range of psychiatric conditions. His background in both psychiatry and internal medicine allows him to consider the whole person and address the connection between physical and mental health. He works collaboratively with patients to create individualized treatment plans that support their goals and overall well-being.

Dr. Mangipudi begins with a thorough evaluation to understand each patient’s symptoms, medical history, and personal circumstances. He develops evidence-based treatment plans that may include medication management, psychotherapy, and coordination with other healthcare providers when appropriate. His goal is to help patients achieve meaningful and lasting improvements through compassionate, patient-centered care.

Licensed in

NY

OH

SC

TX

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New York
Ohio
South Carolina
Texas

View Kevin Ray, MD

Kevin Ray, MD

Kevin Ray, MD

Dr. Kevin Ray is a board-certified psychiatrist who completed his psychiatry residency at Zucker Hillside Hospital, part of Hofstra North Shore-LIJ School of Medicine, in Glen Oaks, New York. Board certified since 2015, he has held numerous clinical and academic leadership roles, including Chief of Psychiatry at the West Palm Beach VA Hospital and Assistant Professor of Psychiatry at Hofstra North Shore-LIJ School of Medicine. He is also trained in Electroconvulsive Therapy (ECT) and Transcranial Magnetic Stimulation (TMS).

Dr. Ray takes a thorough, thoughtful approach to psychiatric care, recognizing the important role lifestyle and nutrition play in mental health. He works closely with patients to simplify and optimize complex medication regimens whenever appropriate, with the goal of improving both outcomes and quality of life.

Dr. Ray uses an open-ended interview style that allows patients to fully express their thoughts and feelings. He carefully reviews the risks and benefits of treatment options, provides detailed education about medications, and discusses alternative approaches beyond medication when appropriate to develop individualized treatment plans.

Licensed in

FL

NY

OH

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Florida
New York
Ohio

View Andrew Vetter, DO

Andrew Vetter, DO

Andrew Vetter, DO

Dr. Andrew Vetter was born and raised in Maine. He earned his undergraduate degree from the University of Maine, his medical degree from the University of New England College of Osteopathic Medicine, and completed his psychiatry residency at UMass Chan Baystate in Springfield, Massachusetts. He has experience in outpatient and inpatient settings, including extensive telehealth, and has primarily provided outpatient medication management through the U.S. Department of Veterans Affairs.

Dr. Vetter strives to create an open, comfortable space where patients can explore their concerns and collaborate on treatment decisions.

Dr. Vetter works to understand each patient's background and what has brought them to treatment. He encourages identifying recurring themes in life and considering how they influence interactions, perspectives, and expectations.

Licensed in

NY

ME

OH

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New York
Maine
Ohio

View Matthew Liu, MD

Matthew Liu, MD

Matthew Liu, MD

Dr. Matthew Liu earned a bachelor's degree in biophysics from Johns Hopkins University, a medical degree from Geisinger Commonwealth School of Medicine, and completed a psychiatry residency at Saint Elizabeths Hospital in Washington, DC. He has experience practicing in both outpatient and inpatient psychiatry settings.

Dr. Liu creates a warm, thoughtful, and nonjudgmental environment where patients can speak openly. He views care as a partnership, making decisions together while taking time to understand what matters most to each patient.

Dr. Liu begins by understanding each patient's symptoms, history, current stressors, strengths, and goals. He develops individualized care plans that may include medication, therapy recommendations, behavioral strategies, or lifestyle changes, then uses follow-up visits to monitor progress, side effects, functioning, and adjust treatment based on each patient's experiences, preferences, and goals.

Licensed in

NY

OH

GA

MD

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New York
Ohio
Georgia
Maryland

View Brian Schultz, MD

Brian Schultz, MD

Brian Schultz, MD

Dr. Brian Schultz earned his PhD in Molecular and Cellular Biology and his MD from the University of Washington. He completed his psychiatry residency at Northwestern University in Chicago and is board-certified in adult psychiatry. Dr. Schultz has served on the teaching and clinical faculties of the University of Hawai‘i and the University of Washington. His experience includes inpatient psychiatry, outpatient community clinics, cancer treatment centers, and psychiatric consultation in hospital medical settings. He has treated patients from college age through late life and, as the spouse of an active-duty military service member, understands many aspects of military family life.

Dr. Schultz engages with patients in a casual, conversational style and believes that medication, when appropriate, is only one part of a comprehensive treatment plan. He strives to create a supportive, non-judgmental environment where patients feel comfortable sharing their experiences, concerns, and goals. He values honest, open communication and welcomes discussions of the gray areas of diagnosis and treatment. Dr. Schultz encourages active participation in the healing process and tailors care to each individual’s unique story.

Dr. Schultz begins by listening to each patient’s concerns, experiences, goals, and history, followed by a discussion of clinical impressions and treatment options. He uses an evidence-based approach to develop personalized treatment plans, recommending medication when indicated and incorporating other strategies such as cognitive and behavioral techniques. Dr. Schultz collaborates with other healthcare providers when appropriate and recommends additional behavioral health resources when beneficial. Ongoing follow-up focuses on assessing progress and adjusting treatment to support patients’ goals.

Licensed in

CA

IL

NC

GA

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California
Illinois
North Carolina
Georgia

View Eddiel Cruz Hernández, MD

Eddiel Cruz Hernández, MD

Eddiel Cruz Hernández, MD

Dr. Eddiel Cruz-Hernandez is a board-eligible adult psychiatrist with experience across outpatient, inpatient, emergency, and consultation-liaison settings. He completed his psychiatry residency at East Carolina University and earned his medical degree from Ponce Health Sciences University in Puerto Rico. Prior to medicine, he studied chemical engineering at the University of Puerto Rico, Mayagüez, shaping his structured clinical approach. He is fluent in English and Spanish.

Dr. Cruz-Hernandez creates a calm, respectful space where patients feel comfortable speaking openly. He prioritizes careful listening and clear understanding, using a collaborative and straightforward style. He explains clinical impressions and options so decisions feel informed. Care may include medication alongside supportive, practical therapeutic approaches tailored to each patient.

He begins with a comprehensive evaluation of symptoms, history, and goals, then develops a personalized plan that may include medication, therapy-informed strategies, or both. Follow-ups focus on progress and adjustments. He emphasizes clarity, safety, and steady improvement, and coordinates with other providers when appropriate.

Licensed in

OH

NY

PA

NC

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Ohio
New York
Pennsylvania
North Carolina

View Frederick Heller, MD

Frederick Heller, MD

Frederick Heller, MD

Dr. Frederick Heller is a psychiatrist with experience in both inpatient and outpatient settings. Raised in New Jersey, he completed his undergraduate education and medical degree at Duke University, followed by psychiatry residency training at Mount Sinai Morningside/West. Outside of work, he enjoys exercise, video games, and spending time with his cat.

Dr. Heller takes a holistic approach to care, combining thoughtful medication management with psychotherapeutic techniques. He works to understand each patient’s mental health within the broader context of their life, aligning treatment with their personal goals and values.

Dr. Heller begins with a thorough evaluation, exploring both the presenting concern and the patient’s broader background. When medications are prescribed, he follows up more closely to monitor effectiveness and side effects, gradually spacing visits as the regimen becomes stable.

Licensed in

NJ

NY

OH

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New Jersey
New York
Ohio

View Elena Volfson, MD

Elena Volfson, MD

Elena Volfson, MD

Dr. Elena Volfson is a double board-certified psychiatrist in General Adult Psychiatry and Addiction Psychiatry. She earned her medical degree from St. Petersburg Pavlov Medical University, completed advanced training in the U.S., and has held leadership, teaching, and clinical roles at nationally recognized institutions. She has also been honored as a Top Doctor and named a Distinguished Fellow of the American Psychiatric Association.

Dr. Volfson believes medication can support recovery but is not a replacement for psychotherapy. Her treatment philosophy combines thoughtful medication management with evidence-based psychotherapy, creating an individualized approach that helps patients build lasting skills and achieve meaningful progress.

Dr. Volfson partners with each patient to understand their goals, concerns, and unique needs. She develops personalized treatment plans that integrate psychotherapy into every visit, using medication when appropriate while emphasizing collaboration, education, and long-term wellness.

Licensed in

AZ

CO

PA

TN

TX

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Arizona
Colorado
Pennsylvania
Tennessee
Texas

View Alexander Diaz Seger, MD

Alexander Diaz Seger, MD

Alexander Diaz Seger, MD

Dr. Alexander Seger, MD, is a board-certified psychiatrist with experience treating patients in inpatient, outpatient, and telehealth settings. He earned his medical degree from Creighton University School of Medicine and completed his psychiatry residency at Creighton University, where he served as chief resident during his final year. He provides evidence-based care using both psychopharmacologic and psychotherapeutic approaches.

Dr. Seger strives to create a warm, respectful, and collaborative environment centered on each patient’s unique goals and needs. He takes a whole-person approach that considers medical conditions, culture, lifestyle, and relationships. By combining respect for patient autonomy with clinical expertise, he works with patients to achieve the best possible outcomes.

Dr. Seger begins with a comprehensive evaluation to understand a patient’s history, current symptoms, and personal goals. Treatment plans are individualized and adjusted as needed during follow-up visits, with attention to progress and minimizing adverse effects. He emphasizes education, open dialogue, and shared decision-making, and may recommend individual, family, or group psychotherapy as part of a team-based approach to care.

Licensed in

IL

NY

OH

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Illinois
New York
Ohio

View Kokil Chopra, MD

Kokil Chopra, MD

Kokil Chopra, MD

Dr. Kokil Malik Chopra earned her medical degree from MGM Medical College in India, where she graduated with honors in medicine. She completed her psychiatry residency at Eastern Virginia Medical School, serving as Chief Resident, and went on to complete a fellowship in Consultation-Liaison Psychiatry (Psychosomatic Medicine) at the University of Washington. With more than 17 years of clinical experience, including a decade in county health systems and community psychiatry, she is also a Qualified Medical Evaluator. Dr. Chopra has contributed to psychiatric research through publications and presentations at national and international conferences and has participated in rural health camps in India in support of global health initiatives.

Dr. Chopra takes a compassionate, culturally sensitive approach to care and strives to create a supportive environment where patients feel heard and respected. Her expertise includes the treatment of depression, anxiety, and post-traumatic stress disorder (PTSD), using evidence-based psychopharmacology while incorporating psychotherapy when appropriate. Fluent in English and Hindi, with working knowledge of Punjabi and Urdu, she is well equipped to care for patients from diverse backgrounds.

Dr. Chopra believes in a patient-centered approach built on collaboration and trust. She works with patients to develop individualized treatment goals and emphasizes a strong therapeutic alliance throughout care. Her treatment plans are grounded in evidence-based practices and may include a thoughtful balance of medication management and psychotherapy, tailored to each patient's unique needs. She is committed to improving access to mental healthcare through education, advocacy, and direct patient care.

Licensed in

CA

OH

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California
Ohio

View William Sultan, MD

William Sultan, MD

William Sultan, MD

Dr. William Sultan is an MD and final-year psychiatry resident at Broward Health Medical Center in Fort Lauderdale, Florida, graduating in June 2026. He earned his MD from Florida Atlantic University’s Charles E. Schmidt College of Medicine and holds dual bachelor’s degrees in Molecular & Cell Biology (Neurobiology) and Psychology from UC Berkeley. His training spans inpatient, outpatient, consultation-liaison, partial hospitalization, intensive outpatient, and residential settings, including work with veterans and first responders managing PTSD and substance use. With a clinical research background and 14 peer-reviewed publications, he values evidence-based care. Outside of medicine, he enjoys cooking, traveling, and exploring new foods.

Dr. Sultan believes the best psychiatric care is built on partnership. He takes time to understand each patient’s history, goals, medical background, and prior treatment experiences before making recommendations. He is transparent about how medications work, expected benefits, potential side effects, and alternatives, including when medication may not be the right approach. He welcomes both individuals new to psychiatric care and those with longstanding treatment histories.

Dr. Sultan begins by listening closely to each patient’s story, concerns, and goals. Together, they develop a treatment plan tailored to the patient’s preferences, medical context, and desired outcomes. He reviews treatment options openly, discussing evidence, risks, benefits, and any controlled-substance considerations. Follow-up visits focus on monitoring progress and adjusting care based on what is working, while collaborating with therapists, primary care physicians, and other providers when appropriate.

Licensed in

FL

NY

CA

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Florida
New York
California

View Noareen Sheikh, DO

Noareen Sheikh, DO

Noareen Sheikh, DO

Dr. Noareen Sheikh is a board-eligible psychiatrist with training in both inpatient and outpatient settings. She earned her medical degree from Nova Southeastern University KPCOM and completed her psychiatry residency at Larkin Community Hospital in Miami, Florida, where she also served as Chief Resident. Her clinical background includes treating mood disorders, anxiety, ADHD, trauma-related conditions, and psychosis across diverse patient populations.

Dr. Sheikh prioritizes creating a warm, supportive environment where patients feel heard, respected, and comfortable. She values open communication and collaboration, working closely with patients to establish clear, meaningful goals. Her approach is patient-centered and evidence-based, tailored to each individual’s needs, with a focus on making visits both approachable and productive.

Dr. Sheikh begins by developing a comprehensive understanding of each patient’s history, concerns, and goals. She collaborates with patients to create individualized treatment plans that may include medication, lifestyle strategies, and therapeutic support. She also integrates practical psychotherapy techniques and adjusts care over time based on progress and feedback.

Licensed in

FL

NY

OH

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Florida
New York
Ohio

View Steven Prenzlauer, MD

Steven Prenzlauer, MD

Steven Prenzlauer, MD

Steve Prenzlauer, MD, is a board-certified psychiatrist who trained at Wayne State University School of Medicine in Detroit, MI. He completed his internship at the University of Cincinnati, residency at Mount Sinai Medical Center in New York City, and fellowship in Psychosomatic Medicine at Beth Israel Medical Center. He has extensive experience treating adults with depression, anxiety, mood disorders, ADHD, PTSD, and psychiatric concerns related to medical conditions, and is committed to respectful, affirming care for diverse communities.

Dr. Prenzlauer believes person-centered care starts with compassion, understanding, and open communication. He prioritizes shared decision-making and creates a space where patients feel heard, respected, and supported. He values each individual’s life experience and works collaboratively to build trust and comfort in care.

Dr. Prenzlauer takes time to understand each patient’s background, perspective, and goals. He develops thoughtful, individualized treatment plans tailored to each person’s needs, integrating clinical expertise with patient input to support meaningful, sustainable progress.

Licensed in

AZ

CA

NM

NY

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Arizona
California
New Mexico
New York
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Book with Dr. Sahadevan

Dr. Sahadevan

Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Geriatric
Medication Management
States
California
Ohio
Languages
English
Takes insurance
Virtual visits
years experience