Dr. Jessie FieldsMD

Internal Medicine

at LSR Wellness — Haverford, PA

About

Jessie Fields, MD is a board-certified internist and Philadelphia-area native who has practiced medicine in the region for over a decade. She earned her Bachelor of Science in Biochemistry from Lehigh University in 2005, then completed her medical degree at Temple University School of Medicine in 2009. She finished her internal medicine residency at Tufts Medical Center in 2012 and spent the following ten years at an Abington-Jefferson primary care practice, providing both inpatient and outpatient care. She co-founded CLIMB Health & Wellness in 2022 before joining LSR Wellness.

Dr. Fields holds ABIM board certification in internal medicine and NASM personal trainer certification, which she earned in 2019. Her passion for preventive medicine grew from more than a decade of observing the mind-body connection in her patients. She leads three weekly 45-minute bootcamp classes in the fitness studio at the Lafayette Hill office, blending cardiovascular and strength training for LSR members. Outside the clinic, she enjoys baking, traveling, exploring the outdoors, and spending time with family and friends.

Education & Training

Undergraduate

Lehigh University, Bachelor of Science in Biochemistry (2005)

Medical School

Temple University School of Medicine (2009)

Residency

Internal Medicine Residency, Tufts Medical Center (2009-2012)

Additional Training

NASM Personal Trainer Certified (2019)

Certifications

ABIM Board Certified in Internal Medicine since 2012
NASM Personal Trainer Certified since 2019

Conditions Treated

chronic disease
preventive health
acute illness

Who is Dr. Fields right for?

Dr. Fields is a strong fit for adults who want preventive care integrated with fitness and lifestyle medicine. Patients interested in nutrition, exercise, and the mind-body connection will find her approach especially aligned with their goals. She works well with adults managing chronic conditions who want a proactive, whole-person strategy. Her bootcamp classes and NASM training make her a natural match for patients who treat physical fitness as part of their health plan.

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Frequently Asked Questions

Dr. Fields specializes in internal medicine, preventive medicine, and sports medicine. Her clinical focus centers on disease prevention and the mind-body connection. She brings over a decade of primary care experience to each patient relationship.

Yes, Dr. Fields holds ABIM board certification in internal medicine, which she earned in 2012. She also holds NASM personal trainer certification, which she earned in 2019. Those dual credentials reflect her commitment to clinical care and physical fitness.

Dr. Fields earned her medical degree from Temple University School of Medicine in 2009. She completed her internal medicine residency at Tufts Medical Center between 2009 and 2012. Before medical school, she earned a Bachelor of Science in Biochemistry from Lehigh University.

Dr. Fields has practiced medicine in the Philadelphia area for over a decade. After her residency, she spent ten years at an Abington-Jefferson primary care practice. She co-founded CLIMB Health & Wellness in 2022 before joining LSR Wellness.

Yes, Dr. Fields leads three weekly 45-minute bootcamp classes in the on-site fitness studio at the Lafayette Hill office. The classes blend cardiovascular and strength training. Her NASM personal trainer certification supports her work in this area.

Dr. Fields sees adult patients at the Lafayette Hill location. She works well with patients interested in preventive care, chronic disease management, and fitness-based approaches to health. Her background spans both inpatient and outpatient internal medicine.

Members can contact Dr. Fields directly by text, phone, or email. LSR Wellness does not route messages through a call center. Direct access is a core feature of the practice's concierge model.

Doctor profile last updated March 21, 2026