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PGY 4 Residents

Sara Armaiz, MD
University of Puerto Rico School of Medicine

Sara was born and raised in the beautiful island of Puerto Rico where she was homeschooled until the age of 16 when she was accepted into the University of Puerto Rico Cayey Campus in Natural Sciences with a concentration in chemistry. While completing her BS she pursued an interest in research and worked with Dr. Otano in the field of material sciences trying to develop hydrogen sensors using nano-films. Sara was able to present her work at various local meetings. After graduating Suma Cumlaude and having been awarded medals for excellence in Chemistry and Research, she was accepted as a medical student at the University of Puerto Rico Medical Sciences Campus. Here she became involved in various community service groups including “recinto pa la calle” or “our school to the streets” where medical students provided basic medical care, food and clothing to the homeless population in Puerto Rico. She continued to have an interest in research, and in 2014 was awarded a research fellowship through the Medical Research Scholars program were she worked in the NICHD in the Section of growth and Obesity were she was able to work with Dr. Yanovski on both the physiological and psychological effects of obesity in children’s development. She was able to present her work in various National meetings including The Obesity Society and The Endocrine Society.  Afterward, Sara returned to her home institution to finish her last year as a medical student and was admitted into her school’s AOA chapter. 






Jennifer Batel, MD
New York University School of Medicine

Jennifer Batel is originally from Long Island, NY. She has an undergraduate degree in Neurobiology from Harvard College and an MD from New York University School of Medicine. Jennifer is interested in college mental health and addiction psychiatry with research experience in first-episode psychosis. She enjoys dance, yoga, hiking, and exploring the city with friends. 


Katie Boyle, MD
University of Central Florida College of Medicine

I am most recently from Florida with a degree in Biology from Florida State University and attended the University of Central Florida for medical school. My interests in psychiatry continue to evolve but include college mental health, women’s mental health, and psychosis. Outside of academics, I like to do anything outdoors including hiking and kayaking- we’re always looking for new spots to explore. Food is also one of my lifetime passions and enjoy checking out new restaurants as well as cooking at home. We’ve really enjoyed getting to know Boston and the surrounding area- there is always something to do/new places to explore!

Jennie Davidow, MD
New York Medical College

I grew up in Lexington, Massachusetts and attended college at Boston University, where I majored in political science with a minor in psychology. While at BU, I did research on cognitive behavioral therapy (CBT) for hoarding disorder, as well as on the social psychology involved in international conflict. After graduating, I traveled to Rwanda to work with HIV positive adolescents to develop ways to improve their treatment adherence. I then attended medical school at New York Medical College, where I continued to study treatment adherence, this time in patients with diabetes. My interests within psychiatry are fairly broad, and currently include psychotherapy, consult/liaison psychiatry, and geriatric psychiatry. Outside of psychiatry, I play the piano and viola and enjoy musical theater and watching Netflix.

Katie Gallardo, MD
Creighton University School of Medicine

Hi, I’m Katie from Phoenix, AZ.  I’ve moved around a bit but spent most of my life in Arizona, completing my undergrad at The University of Arizona in Tucson.  After getting my BS in Psychology, I took a “gap year” where I traveled to South America for medical volunteer work, visited family in Ecuador, and worked as a barista.  I went on to complete medical school at Creighton in Omaha, NE.  The school has a regional campus in Phoenix for clinical rotations, so I completed third and fourth year in Phoenix.  Since undergrad, I have had a feeling that Psychiatry would be my career path, and this was confirmed while on my psychiatry rotation at both St. Joseph’s Hospital and Medical Center as well as Phoenix Children’s Hospital.  I love that Psychiatry allows me the ability to cultivate abstract thinking.  Ideally I’d like to work with both children and adults some day.   I’m thrilled to be part of the Harvard Longwood Psychiatry Residency Training Program!  One of my ultimate goals is to unite my passion for psychiatry with my passion for yoga.  In my eyes, the possibilities are endless.  I recently completed my yoga teacher training 200-hour certification at Sutra Studios in Phoenix, AZ.  I also enjoy hiking, pretending to be a foodie, and spending inordinate amounts of time listening to music on Spotify.  

Ryan Henner, MD
Medical College of Georgia at Georgia Regents University

Born the eldest of three siblings and raised in “Hotlanta,” I have strived to balance roots and wings. Washington and Lee University in Lexington, VA was home for my undergraduate years, and I returned to the Georgia clay for medical school. Although I ran competitively in high school and college, my new-found love for yoga and meditation has led me to seek new trails. What was a fun exercise has taken root as a passion, and I am now pursuing an integration of psychiatry and practices of awareness.

Clare Herickhoff, MD
Creighton University School of Medicine

Hi, my name is Clare Herickhoff!  I’m from Minnesota originally, and I went to Creighton University in Omaha, Nebraska for undergraduate and medical school.  For the last 2 years of medical school, I lived in Phoenix, Arizona with my wonderful friends and cat, Josie.   I’m interested in psychosomatics and child & adolescent psychiatry.  My interests outside of psychiatry include doing puzzles, reading, hanging out at the pool (ah, Phoenix life), and eating delicious food.

Katherine Kosman, MD, MBA
Geisel School of Medicine at Dartmouth

Dr. Katherine Kosman graduated Cum Laude in Electrical Engineering from Washington University in St. Louis, obtained an MD from Dartmouth, and holds a Masters of Business Administration (MBA) from the Tuck School of Business at Dartmouth. Prior to training in psychiatry, Dr. Kosman began her medical residency with a surgical year at UCSF-East Bay and residency training in anesthesiology at MGH, ultimately transitioning to psychiatry in order to help others more holistically including a focus on psychotherapy. Dr. Kosman is especially interested in helping others navigate parenting stressors and women’s mental health, including postpartum, conception, and perinatal concerns. In addition, Dr. Kosman holds strong interest in trauma work, having pursued projects in trauma-informed care and completed electives in PTSD and grief. Given her previous employment at an engineering company, a management consulting firm, and in other medical specialties, Dr. Kosman is sensitive to the emotional needs of working professionals and medical providers, and the connection between psychiatry and topics of resiliency and burnout. Dr. Kosman proudly serves a diverse patient population, has written academic work on the need for transgender education in psychiatry, and fosters an inclusive community. An avid reader, she leads the newly created Harvard Psychiatry Book Club. In her spare time, she also enjoys traveling and writing.

Rebecac Munro, MD
University of Kansas School of Medicine

Undergraduate education at the University of Nebraska. Master’s in psychology at UC David. Medical education at the University of Kansas School of Medicine. Prior clinical research in pediatric neurosurgery. Clinical interests in women’s mental health, attachment and OCD. 

Nathaniel Roysden, MD
Harvard Medical School

Nathan studied Chemical Engineering at the University of Nevada in Reno. He attended medical school at Harvard where his research involved the creation of machine learning algorithms to predict outcomes of behavioral health interventions. Nathan’s interests include programming and data science, music, reading, dancing, and skiing.

Mia Savagian, MD
Michigan State University College of Human Medicine, Grand Rapids

Mia obtained her undergraduate degree at Hope College in Holland, Michigan, where she majored in Chemistry.  She attended Michigan State University for medical school and developed an interest in Psychiatry while rotating with a Longwood grad.  She is interested in geriatrics and outpatient work.  Outside of Psychiatry, Mia is an avid runner.

PGY 4 Research Track Residents

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Lauren Tollack, MD
Texas Tech University School of Medicine, Amarillo

Hello!  My name is Lauren.  I was born and bred in Dallas, Texas.  Shortly after graduating from Texas A&M University in 2009, medical school introduced me to the Panhandle- to Texas Tech University Health Sciences Center.  TTUHSC gifted me a number of opportunities, including the ability to participate in the development of a virtual reality psychosis simulation, intended to familiarize medical students with the symptoms of schizophrenia and ultimately to cultivate empathy toward those patients who live with the disease.

With regard to the field, in addition to medical education, my interests are many, including community psychiatry, psychosomatics, and palliative medicine, and I look forward to developing my interests further.  Outside of psychiatry, I enjoy reading, cooking, hiking and yoga- I’m a simple woman, and enjoy simple pleasures.   I am wholly grateful for the mentorship and camaraderie received from and shared with the Department of Psychiatry at Texas Tech, and felt similarly at home amongst the community cultivated within Harvard Longwood. 

Sara Vasudeva, MD
Albert Einstein College of Medicine of Yeshiva University

I grew up in Warren, NJ a town 40 minutes east of Manhattan. I completed my undergraduate degree at the University of Miami, in Coral Gables, FL. There I developed a love for psychology and its connection to medicine while working in a psycho-oncology research lab on a project looking at the determinants of health-related quality of life in advanced prostate cancer survivors.

After undergrad, I returned to the Northeast (and unfortunately to its snowy winters), to Albert Einstein College of Medicine in NY. I loved my experience there and truly enjoyed working with the underserved populations in the Bronx. During my third year of medical school, my idea that psychiatry was the right fit for me was confirmed. My interests within psychiatry are psychosomatic medicine, collaborative care, community psychiatry, and psychotherapy all of which I am excited to further explore at Harvard Longwood.

Some of the things I enjoy outside of medicine are yoga, watching more Bravo TV than I’d like to admit, and spending time with my boyfriend, Frank, who is an internal medicine resident at BIDMC. We also love traveling, Netflix marathons, and cooking!




Marguerite Schneider, MD, PhD
University of Cincinnati College of Medicine

Maggie Schneider completed her undergraduate work in psychology at Boston College. After college, she was an Intramural Research Training Award (IRTA) Fellow at NIMH, working in a lab that used neuroimaging techniques to study the underpinnings of callous and unemotional traits in youth. She then completed MD/PhD training at the University of Cincinnati. Her dissertation research looked for neuroimaging and executive function markers of risk, progression, and medication response in youth with and at familial risk for bipolar disorder. Here at Longwood, she is a research track resident, and her long-term goals are to pursue child and adolescent fellowship and research focused on prevention and early intervention for youth at high risk for bipolar and psychotic disorders. She is also interested in medical humanities, medical education, and resident wellness, and is conducting research looking for biomarkers of risk for depression during medical training.

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