Our Team

Jeffrey Haggquist, DO — Medical Director — QuistMD

Jeffrey Haggquist, DO — Medical Director

Dr. Haggquist is a trained physical medicine and rehabilitation physician with a focus in musculoskeletal and sports medicine. His hands-on approach, including manual manipulation, is a hallmark of osteopathic medical treatment.

Dr. Haggquist completed his residency training at Temple University Hospital in Philadelphia, PA, his osteopathic internship at the University of Medicine and Dentistry of New Jersey, and his medical education at Kansas City University of Medicine and Biosciences.   

Dr. Haggquist has studied with Aaron Mattes for more than 20 years, is a national specialist in the Mattes Method of Active Isolated Stretching (AIS), and conducts educational workshops and seminars on flexibility, strength, and neuromuscular re-education.

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Brandon Flynn — Practice Administrator

Brandon is a former United States Marine with specialized training on the EA6B Prowler. During his time in the Marine Corps he studied Healthcare Administration in hopes of one day pursuing a career in healthcare. After his tenure with the Corps, Brandon transitioned into civilian life managing healthcare facilities in his hometown in Southern Virginia. Brandon married and moved to Washington D.C. to continue his career in the healthcare industry.

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Chris McIlvaine, PT, DPT, CSCS

Chris is a native of Alexandria, VA attending Bishop Ireton High School. He then attended The University of South Carolina and graduated with a Bachelor of Science degree in Exercise Science. Following his undergraduate degree, Chris attended physical therapy school at Touro College in Bay Shore, NY. He was the Valedictorian of his physical therapy class and recipient of Touro College’s Highest Achievement in Clinical Excellence Award.

Chris has a special interest in sports and golf rehabilitation but enjoys treating patients of all ages with different Orthopedic, Musculoskeletal, and Neuromuscular conditions. He is a NSCA Certified Strength and Conditioning Specialist and Titleist Performance Institute Certified Level 1 practitioner. He uses functional movement patterns to assess and create a strategic plan to address the mobility or stability problems that are negatively impacting the body as a whole

Kevin Kenny - ACSM-CPT, AIS Therapist - QuistMD

Kevin Kenny
ACSM-CPT, AIS Therapist

Kevin is a staff AIS therapist and certified personal trainer through the American College of Sports Medicine (ACSM). He integrates training programs with the Mattes Method of Active Isolated Stretching and Strengthening emphasizing core strength, soft tissue trigger and tender point therapy, and overall flexibility. Prior to his professional interest in fitness and rehabilitation, he was Project Manager and Senior Business Analyst for a major national publishing company.


Chili Lati, PT

Andrea Morales — LMT, AIS Therapist - QuistMD

Andrea Morales
LMT, AIS Therapist

A graduate of the Arizona School of Massage Therapy in Phoenix, Andi has Board Certification for massage therapy, National Sports Massage Certification and extensive training in Active Isolated Stretching (AIS) and Strengthening.  A busy mother of three, Andi believes that training and intuition are both key to successful therapeutic massage. She brings a gentle demeanor and a heart centered approach to her profession. She is currently working on her Personal Training and Dynamic Neuromuscular Stabilization Certification.

Aleen Rothschild-Seidel - LMT, Trager® Practitioner - QuistMD

Aleen Rothschild-Seidel
LMT, Trager® Practitioner

After a car accident, Aleen tried various types of bodywork and movement education techniques, and she especially loved the gentle movements of the Trager approach. She is a certified Trager practitioner and licensed massage therapist, and also has training in basic manual lymphatic drainage and AIS.


Jahziel Paulines

Front Desk Manager

Jahziel graduated from the University of Maryland, Baltimore County, with a major in Health Administration and Policy Program in 2016. With her organizational skills and upbeat personality, she strives to maintain a safe, happy, and welcoming environment for everyone who visits us at QuistMD. She believes that a holistic approach to medicine is an effective way to support good health. She also believes that staying active through sports and other physical activities promotes a healthy lifestyle.  She hopes for vertical growth through her career in the healthcare industry using valuable experience as Front Desk Manager.


Emma Paulines

Medical Assistant

Emma is a recent alumna of the University of Maryland, Baltimore County where she completed a Bachelor’s degree in Psychology. She hopes to broaden her horizons in the physical therapy and medical field as Dr. Haggquist’s medical assistant. Emma has gained valuable experiences in the medical field practicing as a Certified Nursing Assistant at Walter Reed National Medical Military Center and Bethesda Health and Rehabilitation Center. With her outgoing personality and zeal for knowledge, she hopes to diligently fulfill her duties as a medical assistant while concurrently pursuing her goals.

Melissa Guzman

Front Desk Assistant