Treating people, not patients.

Offering highly personalized care and service, beyond expectation.

Meet Our Physicians

Meet Our Physicians

At One Medical Group, your health is our highest priority. We are a team of experienced, board-certified physicians and health care professionals who are dedicated to providing you with world-class medical care.

In order to keep you healthy, we start by getting to know you — your life, your needs, your concerns. We use the latest medical knowledge and technology to develop personalized diagnostic and treatment plans. And most importantly, we take time to explain ourselves clearly and listen to you.

Not only will you experience more one-on-one interaction with your doctor (both in the office and via email), but you'll also be matched with a primary care team dedicated to assisting you with your health care needs.

Review our primary care teams – and select a partner who works best for you.

Veena Chawla, MD

1627 I Street NW

Specialty
Family Medicine
Expertise
Exercise, Nutrition, Weight Management
Lifestyle Modification
Musculoskeletal Conditions
Preventive Health and Education
Sports Medicine
Women's Health

Veena brings a strong background in sports medicine and a commitment to patient education to her practice at One Medical Group. She is adept at problem-solving and approaching health issues from a holistic standpoint, focusing on diet, exercise and lifestyle modification in addition to conventional treatments. After attending The George Washington University, Veena earned her MD from Kasturba Medical College in India and completed her residency in Family Medicine at the University of Medicine and Dentistry-New Jersey Medical School at St. Mary Hospital. She received additional training in Primary Care Sports Medicine through a fellowship at Boston University Medical Center. Veena has extensive experience as a clinician and teacher and is currently a visiting assistant professor at Georgetown University. She is board-certified in Family Medicine and Primary Care Sports Medicine.

Kate Komis, MD

1001 G Street NW

Specialty
Internal Medicine
Expertise
Cardiovascular Disease
Complex Medical Conditions
Diabetes, Hypertension, Lipid Disorders
Digestive Disorders
Lifestyle Modification
Preventive Health and Education
Women's Health

With a focus on preventative medicine, Kate strives to develop meaningful relationships with her patients in an effort to improve their health. Knowledgeable and encouraging, she warmly guides patients through lifestyle modifications like weight loss and smoking cessation. Kate earned her undergraduate degree at Wake Forest University and her MD at Georgetown University School of Medicine, where she developed a particular interest in the management of chronic disease. She is board-certified in Internal Medicine. Note: sees patients age 18 and older.

Kara Choi, MD

1001 G Street NW

Specialty
Family Medicine
Expertise
Complex Medical Conditions
Diabetes, Hypertension, Lipid Disorders
Integrative Medicine
Lifestyle Modification
Preventive Health and Education
Women's Health
Availability
Limited Appointment Availability
Works with
M. Janet Coy, PA-C, RD

Kara strongly believes in the importance of an integrated and holistic approach to health care, seeking to understand the biological, psychological, social and spiritual factors that may be contributing to her patients' health issues. She emphasizes lifestyle modification in her treatment recommendations and educates her patients on how to achieve and maintain optimal health. Kara earned her MD from the University of Maryland and completed her residency in family medicine at York Hospital in Pennsylvania. She is certified through the American Board of Family Medicine.

Daniel Garfinkel, MD

1001 G Street NW

Specialty
Family Medicine
Expertise
Allergies and Asthma
Anxiety, Depression, Insomnia
Cardiovascular Disease
Diabetes, Hypertension, Lipid Disorders
Exercise, Nutrition, Weight Management
Preventive Health and Education
Skin Rashes and Biopsies
Availability
Limited Appointment Availability
Works with
Amy Stulman, NP

Engaging and welcoming, Dan is skilled at developing close relationships with his patients by first seeking to understand their cultural and spiritual background as well as their health and wellness goals. He has significant experience in urban and rural family medicine and enjoys treating a wide spectrum of primary care needs from mental health issues to diabetes. After graduating from George Washington University, he earned his MD from the Medical College of Virginia and completed his residency in Family Medicine at the Fairfax Family Practice Center at the Medical College of Virginia. He has been practicing primary care medicine since 1990 and was most recently the Lead Physician at Salem Family Health Center in New York. Dan is board-certified in Family Medicine.

Deborah Grorud, MD

1001 G Street NW

Specialty
Family Medicine
Expertise
Birth Control Counseling
Complex Medical Conditions
Diabetes, Hypertension, Lipid Disorders
Preventive Health and Education
Women's Health
Works with
Lauren Levy, PA-C

As an experienced family physician, Deborah focuses on developing lasting relationships with patients and empowering them to make good health care decisions. She uses evidence-based medicine in managing patients' chronic conditions, including women's health issues and illnesses such as hypertension, diabetes and high cholesterol. After graduating with honors from Dartmouth College, Deborah went on to earn her MD from the University of Massachusetts Medical School and completed her residency in family medicine at the Greater Lawrence Family Health Center in Massachusetts. She has been practicing primary care medicine since 2008, and was most recently an attending physician at Georgetown University. She is certified through the American Board of Family Medicine.

Lindsay Sher, MD

1627 I Street NW

Specialty
Internal Medicine
Expertise
Complex Medical Conditions
Diabetes, Hypertension, Lipid Disorders
Exercise, Nutrition, Weight Management
Lifestyle Modification
Preventive Health and Education
Smoking Cessation
Travel Medicine
Availability
Limited Appointment Availability
Works with
Stephanie Wallace, PA-C

Lindsay expertly balances her detailed, comprehensive medical knowledge with a light-hearted, empathetic demeanor. She is a reliable partner for her patients, helping them improve their health through lifestyle changes, such as tobacco cessation and weight loss. After completing her undergraduate studies at the College of William and Mary, Lindsay went on to earn her MD from the University of Virginia School of Medicine. She then completed her residency in Internal Medicine at Georgetown University Hospital where she was chief resident. She is certified through the American Board of Internal Medicine. Note: sees patients age 18 and older.

William Kimbrough, MD

1627 I Street NW

Specialty
Internal Medicine
Expertise
Anxiety, Depression, Insomnia
Complex Medical Conditions
Exercise, Nutrition, Weight Management
Immune System Health
Sports Medicine
Availability
Limited appointment availability
Works with
Casey O'Bryan, FNP

As a primary care provider, Will focuses on developing therapeutic relationships with his patients in order to manage their health optimally. He emphasizes prevention but also has particular interests in sports medicine and in the treatment of complex medical conditions, striving to understand the broad impact of illness on each patient's life. After receiving his bachelor's degree in chemistry from the Georgia Institute of Technology, Will went on to earn his MD from Georgetown University School of Medicine. He completed his residency in internal medicine at NYU Langone Medical Center and Bellevue Hospital in New York City and also earned a master's in Public Health from the London School of Hygiene and Tropical Medicine. Will is certified through the American Board of Internal Medicine. Note: sees patients age 18 and older.

Emily Harrison, MD

1627 I Street NW

Specialty
Family Medicine
Expertise
Diabetes, Hypertension, Lipid Disorders
Exercise, Nutrition, Weight Management
Immune System Health
Lifestyle Modification
Preventive Health and Education
Sports Medicine
Stress Management
Women's Health
Availability
Limited Appointment Availability

Emily is dedicated to providing quality care by getting to know her patients as individuals and focusing on preventive care. She incorporates lifestyle modification into disease treatment and prevention recommendations and is particularly interested in the treatment of diabetes, metabolic syndrome and hypertension. Emily received her bachelor's degree in biology and earned her MD through a combined-degree program through Rutgers University and Robert Wood Johnson Medical School. She completed her residency in family medicine at Hunterdon Medical Center where she was a chief resident. Emily is certified through the American Board of Family Medicine.

John Snyder, MD, MS, MPH (FACP)

1627 I Street NW

Specialty
Internal Medicine
Expertise
LGBT Care
Men's Health
Preventive Health and Education
Availability
Limited appointment availability

John expertly balances the rigors of evidence-based medicine with the art of compassionate listening. He has developed a wide breadth of knowledge from his years of experience in primary care and has a particularly keen interest in LGBT health issues. After receiving his bachelor's, master's and medical degrees from the University of Massachusetts, John completed his residency in Internal Medicine at the Brown University Residency Program where he also served as Chief Medical Resident. He went on to practice at Johns Hopkins University where he was Assistant Director of the Internal Medicine Residency Program. He then spent six years on the medical school faculty at UNC Chapel Hill, based at the South East AHEC in Wilmington, where he also served as the residency Program Director in Internal Medicine and the Vice Chair of Medicine at New Hanover Regional Medical Center. John also holds a master's in public health from The University of North Carolina at Chapel Hill and is a Medical Officer in the U.S. Health Resources and Services Administration, where he works on Affordable Care Act projects related to growing the nation's primary care workforce. He is certified through the American Board of Internal Medicine. Note: sees patients age 18 and older.

Sarah Lewis, DO

1001 G Street NW

Specialty
General Medicine
Expertise
Allergies and Asthma
Birth Control Counseling
Diabetes, Hypertension, Lipid Disorders
IUD Insertion
Osteopathic Medicine
Preventive Health and Education

Thomas Lee, MD

1627 I Street NW, 1001 G Street NW

Specialty
Internal Medicine
Expertise
Complex Medical Conditions
Men's Health
Preventive Health and Education
Availability
Not Accepting New Patients

Tom specializes in primary care internal medicine with an emphasis on preventive health, complex cases and quality improvement. He graduated from Yale University and the University of Washington School of Medicine, and completed his residency at Harvard's Brigham and Women's Hospital before serving as editor-in-chief for the widely used drug reference application Epocrates. He then founded One Medical Group as a step toward improving primary care delivery. Though he has limited appointment availability, Tom works with an excellent group of colleagues who share his commitment to high-quality patient care and service. Note: sees patients age 18 and older.

Christopher Saj, PA-C

1627 I Street NW

Specialty
General Medicine
Expertise
Exercise, Nutrition, Weight Management
Lifestyle Modification
Men's Health
Preventive Health and Education
Sports Medicine
Stress Management

Amy Stulman, NP

1001 G Street NW

Expertise
Complex Medical Conditions
Diabetes, Hypertension, Lipid Disorders
Exercise, Nutrition, Weight Management
LGBT Care
Preventive Health and Education
Smoking Cessation
Works with
Daniel Garfinkel, MD

Compassionate and sincere, Amy uses evidence-based medicine and preventive care to empower her patients to live healthfully. She listens to patients' unique needs and advocates for them to help them achieve their health goals. She is well-versed in treating hypertension, diabetes, lipid disorders, and atrial fibrillation. Amy earned her master’s of science in nursing from the University of Pennsylvania and is a certified Adult Health and Gerontological Nurse Practitioner by the ANCC.

Lauren Levy, PA-C

1001 G Street NW

Expertise
Birth Control Counseling
Diabetes, Hypertension, Lipid Disorders
Digestive Disorders
Preventive Health and Education
Stress Management
Women's Health
Works with
Deborah Grorud, MD

Lauren empowers her patients to make informed decisions about their health by providing them with the latest evidence-based medical recommendations as well as educational health resources tailored to their needs. Approachable and knowledgeable, she seeks to serve as a support system for her patients, helping them navigate today's often complex healthcare system. She has a strong background in all areas of primary care medicine and has a keen interest in preventive and integrative medicine. After earning a dual master's in medical science and public health from Emory University, Lauren honed her skills as a Physician Assistant with a special focus on using technology to increase the efficiency of patient care. She is certified through the NCCPA.

Casey O'Bryan, FNP

1627 I Street NW

Specialty
Family Medicine
Expertise
Adolescent Medicine
Allergies and Asthma
Birth Control Counseling
Preventive Health and Education
Women's Health
Works with
William Kimbrough, MD

Casey partners with her patients to make incremental changes in their lives aimed at improving their overall health. With a keen listening ear and approachable demeanor, she pays attention to patients’ home environments, social habits, and life stressors to help build a personally-tailored plan for improving or maintaining their health. She has a particular interest in treating women's health issues, dermatological conditions, asthma and allergies. Casey earned her Master of Science in Nursing from Yale University and is board-certified by the American Academy of Nurse Practitioners.

Stephanie Wallace, PA-C

1627 I Street NW

Expertise
Allergies and Asthma
Cardiovascular Disease
Diabetes, Hypertension, Lipid Disorders
Digestive Disorders
Lifestyle Modification
Women's Health
Works with
Lindsay Sher, MD

Stephanie thrives in the primary care setting, building supportive relationships with patients and helping give them a better understanding of their health. Full of compassion, she encourages her patients to live a healthy and active lifestyle and focuses largely on preventive care. After graduating from the University of North Carolina at Chapel Hill, Stephanie went on to complete her physician assistant training and earn her master's of science from Wake Forest University. Through her extensive experience as a hospitalist and work in cardiology, she developed a particular interest in the management of cardiovascular disease. She is board-certified through the NCCPA.

Nathaniel Madsen, PA-C

1627 I Street NW

Thomas Maryniak, PA-C

1001 G Street NW

Specialty
Family Medicine
Expertise
Diabetes, Hypertension, Lipid Disorders
Ear, Nose and Throat Diseases
Men's Health
Preventive Health and Education

According to Thomas Maryniak, a therapeutic relationship between patient and provider is the most important aspect of health care. He believes One Medical Group allows him to spend the time necessary with each patient to fully address his or her concerns and offer compassionate, empathetic, and caring guidance. Thomas is particularly interested in treating diabetes, neurological conditions, asthma, and men’s health and once worked for the Walter Reed Army Medical Center’s head injury program. Thomas strives to eat a vegan diet, and enjoys yoga, walking, and reading. He also loves spending time with his family, and revisiting some of his own childhood memories with his son. Thomas is certified through The National Commission on Certification of Physician Assistants (NCCPA) and graduated from the Physician Assistant Program at Albany Medical College.

M. Janet Coy, PA-C, RD

1001 G Street NW

Specialty
Internal Medicine
Expertise
Diabetes, Hypertension, Lipid Disorders
Digestive Disorders
Exercise, Nutrition, Weight Management
Skin Rashes and Biopsies
Smoking Cessation
Sports Medicine
Travel Medicine
Works with
Kara Choi, MD

A physician assistant and registered dietician, Janet Coy joined One Medical Group because she was intrigued by its unique approach to providing innovative, compassionate, and timely patient-centered care. Her personal primary care style is characterized by a deep curiosity about each patient’s distinct medical concerns, and a passion for building therapeutic relationships. She believes in empowering and advocating for patients to take active roles in their own healthcare, and she considers each appointment an opportunity to learn from patients’ experiences and influence their lives through education, examination, results, and treatment. Janet is also an aeromedical physician assistant in the DC National Guard and has served as both an active duty and reserve duty dietician in the US Army. Note: sees patients age 18 and older.