Meet Our Staff

Executive Director

Michelle D. Bowdler

Michelle D. Bowdler, MSPH

Executive Director of Health and Wellness Services
Oversees Health Service, Counseling and Mental Health Services, and Health Promotion
Education:  Brandeis University; Harvard University, Master of Science in Public Health
Areas of Interest: Public health, violence prevention, sexual assault prevention and response, substance use and abuse, HIV prevention and education, LGBT health


Jennifer M. Berrios, MHA (Coming Soon!)

Associate Director of Administration for Health and Wellness



Marie Caggiano, MD, MPH

Medical Director of Health Service
Education:  Fellowship: University of Mass. Medical School, Preventive Medicine; Residency: University of Mass. Medical School, Family Medicine; Medical School: Boston University, Doctor of Medicine; Undergraduate: Boston University, B.S. Human Physiology 
Additional Role:  Member Tufts University COVID-19 Coordinating Committee and Medical Sub-committee 
Clinical Areas of Interest: reproductive health care and contraception services for persons of all gender identities, primary care procedures, and care for individuals with eating disorders.


Peter Doyle

Peter Doyle, MD

Associate Medical Director of Health Service 
Education: University of Pittsburgh School of Medicine, MD, Internal Medicine Residency, 
MetroWest Medical Center University of Pittsburgh, BA Political Science/Classics
Additional Role: Provider of routine and acute medical care
Clinical Areas of Interest: Preceptor of PA and NP students, Major in US Army National Guard Medical Command, Sports Medicine, Men's Health, Depression, Sleep Medicine

Leslie Brown-Velazquez

Leslie Brown-Velazquez PA-C, MHP

Physician Assistant
 Northeastern University, Physician Assistant
Clinical Interests & Areas of Expertise: Women’s health, adolescent health, travel medicine
Background in primary care and community health
Languages spoken: English and Spanish

Mariah Swiech HendersonMariah Swiech Henderson, PA-C

Physician Assistant
Education: Brandeis University, BA , Psychology and Music ; Northeastern University, MS, Physician Assistant 
Clinical Interests and Areas of Expertise: Healthcare for sexual and gender minorities with a focus on gender affirmation, STI/HIV prevention and management, prehospital medicine, emergency preparedness, fostering independence during the transition from pediatric to adult medical care, and strategies for medication adherence.

Margaret Higham

Margaret Higham, MD

Staff Physician
Education: Duke University School of Medicine, M.D.; Brown University School of Medicine, pediatric residency; Boston City Hospital, Pediatric Infectious Disease Fellowship
Additional Roles: Member of Students in Distress Group. Member of the University Emergency Management Taskforce. Active in the New England College Health Association
Clinical Interests and Areas of Expertise: Leadership, mentoring, LGB health, trans and gender non-conforming health care, HIV prevention and PrEP, infectious diseases, public health, eating disorders, asthma, emergency planning, electronic medical records, quality improvement

Carolyn Schwartz

Carolyn Schwartz, FNP, MSN

Nurse Practitioner
Education: Fitchburg State College, Bachelor of Science in Nursing
University of Massachusetts, Masters of Science in Nursing
Additional Role: Preceptor for nurse practitioner students
Clinical Interests and Areas of Expertise: Women’s health, sexual health the Health care of students with a range of gender identities and sexual orientations, and common acute illness in young adults.

Ellen Sitron, MSN, NP-C

Nurse Practitioner
Education:  Hahnemann University, Philadelphia, PA – Masters of Science in Nursing
Additional Role: Travel Specialist
Clinical Interests and Areas of Expertise:  Primary care, travel medicine, certified in women’s health

Stacey Sperling, MD

Staff Physician
Education: University of California, Berkeley - Anthropology and Philosophy
New York University Medical School
Board Certified in  Internal Medicine and Emergency Medicine
Additional Role:  Medical Director of Tufts Emergency Medical Service (TEMS)
Clinical Interests and Area of Expertise: Internal Medicine and Emergency Care

Ariel Watriss

Ariel Watriss, MSN, NP-C

Nurse Practitioner
  Massachusetts General Hospital School of Nursing - Bachelor and Masters in Nursing
Additional Roles:  Travel specialist, clinical preceptor for nurse practitioner students
Clinical Interests and Areas of Expertise: HIV/AIDS (including PEP and PrEP), LGBTQI health, sexual health, family planning, helping young adults navigate and and develop their own health advocacy, helping survivors of sexual assault

Registered Nurses and Medical Assistants

Marianne Coscia, BSN, Nurse Manager
Susan Brownell, MA
Caryl O'Brien, RN
Josephine Olupona, BSN


Linda Walsh, MT

Administrative Staff

Ruth Aguila, Insurance Coordinator
Kathy Breen,  Front Desk

Karen Correnti, Front Desk
Cecile Fagan, Administrative Assistant
Amy Solano, Medical Office/EMR Coordinator