Katherine is a dual board-certified Family and Pediatric Nurse Practitioner who holds a Doctor of Nursing Practice from the University of San Diego — one of the highest clinical degrees in nursing. With over 15 years of experience, including years providing critical care to newborns in Level 3 NICUs at Naval Medical Center San Diego and Wolfson Children’s Hospital, Katherine brings an exceptional level of precision, planning, and clinical depth to every patient she sees. At BFF Medical Wellness Clinic’s San Marcos location, Katherine provides the full range of services offered by the clinic, including bioidentical hormone replacement therapy (BHRT), testosterone optimization, GLP-1 weight management, IV therapy, body contouring treatments, skin aesthetics, and sexual wellness. She is known for her structured, thorough consultations — taking the time to walk patients through their labs, explain exactly what’s driving their symptoms, and deliver a clear, personalized plan with confidence and warmth. Katherine’s exceptional verbal clarity and natural diplomacy mean you’ll never leave a visit confused about your health or your next steps. She is patient, collaborative, and deeply goal-oriented — the kind of provider who partners with you and stays focused on getting you real results. Whether you’re tackling hormone imbalances, pursuing your weight loss goals, or refreshing your look, Katherine is committed to helping you look and feel your absolute best.

Katherine is a dual board-certified Family and Pediatric Nurse Practitioner who holds a Doctor of... Read More

Doris De Jesus, MSN, APRN, FNP-C Doris is a board-certified Family Nurse Practitioner with nearly 20 years of healthcare experience. She earned her Master of Science in Nursing from California Baptist University and has worked extensively in hemodialysis, home health, and rehabilitation — caring for patients with complex chronic conditions and leading clinical teams. At BFF Medical Wellness Clinic, Doris provides the full range of services offered by the clinic, including bioidentical hormone replacement therapy (BHRT), testosterone optimization, GLP-1 weight management, IV therapy, body contouring treatments, skin aesthetics, and sexual wellness. Whether you’re looking to balance your hormones, reach your weight loss goals, rejuvenate your skin, or enhance your overall wellness, Doris is passionate about helping patients uncover the root causes behind their concerns and create a clear, personalized plan to look and feel their best. Bilingual in English and Spanish, Doris is dedicated to making every patient feel heard, informed, and confident in their care. Her goal with every visit is to give you a complete picture of your health and a path forward that works for you.

Doris De Jesus, MSN, APRN, FNP-C Doris is a board-certified Family Nurse Practitioner with nearly... Read More

Antoinette Jackson-Sekunda — known to her patients as Toni — is a board-certified Family Nurse Practitioner and U.S. Army combat medic veteran with over 12 years of healthcare experience spanning emergency medicine, cardiac care, and integrative wellness. She brings a rare combination of clinical expertise and genuine compassion to every patient she sees. Toni’s medical journey began in the United States Army, where she served for six years as a combat medic — learning firsthand the value of quick thinking, precision, and putting others first. While still in uniform, she earned her nursing degree and went on to build a distinguished career across some of the nation’s top medical centers, including NYU Langone Medical Center, Sharp Memorial Hospital, and St. Francis Medical Center. Her passion for whole-body wellness and getting to the root cause — rather than putting a band-aid on symptoms — is what led her to specialize in hormone health and integrative medicine. After earning her Master of Science in Nursing as a Family Nurse Practitioner and completing her Doctor of Nursing Practice (DNP), Toni dedicated her career to helping patients feel like their best selves through personalized, evidence-based care. As a certified provider in bioidentical hormone replacement therapy, medical weight management, sclerotherapy, and aesthetic treatments, Toni takes the time to truly listen, educate, and empower her patients. She believes that every person deserves to understand their body and feel confident in their treatment choices. Whether you’re exploring hormone therapy for the first time, looking to manage your weight with medical support, or seeking aesthetic treatments to feel more like you, Toni and the BFF Medical Wellness team are here to walk that journey with you — because at BFF, you’re not just a patient, you’re family.

Antoinette Jackson-Sekunda — known to her patients as Toni — is a board-certified Family Nurse Pr... Read More

Adam Lingren, NRP, Health Coach Adam is a nationally registered paramedic with nearly a decade of frontline emergency medical experience across the San Bernardino and San Diego 911 systems, along with specialized training in nuclear stress testing and IV therapy. He brings a rare combination of advanced medical knowledge and natural communication ability to every patient interaction — the kind of person who can explain complex health topics in a way that instantly clicks. At BFF Medical Wellness Clinic, Adam serves as a Health Coach and Community Paramedic, primarily supporting patients in the lab and weight loss injection room. He guides members through their wellness journey — from body composition reviews and injection appointments to helping you understand how BFF’s full range of services, including BHRT, GLP-1 weight management, IV therapy, body contouring, skin aesthetics, and sexual wellness, can work together to help you reach your goals. Adam’s greatest strength is his ability to connect with patients and make them feel at ease. With strong verbal skills and a genuine, personable approach, he takes the time to listen, answer your questions, and make sure you feel confident and supported at every step. Whether it’s your first visit or a routine follow-up, Adam is here to keep you on track and help you get real results.

Adam Lingren, NRP, Health Coach Adam is a nationally registered paramedic with nearly a decade of... Read More

Matthew Rodriguez, CMA, LXRT Medical Assistant / Lab Technician Matthew is a certified Medical Assistant and Limited X-Ray Technician with hands-on training in phlebotomy, injections, diagnostics, and patient care. He completed his Medical Assistant and Limited X-Ray program at Modern Technology School and holds certifications in BLS, venipuncture, and injection administration. At BFF Medical Wellness Clinic, Matthew is the steady hand behind the scenes — managing the lab, performing blood draws, conducting body composition analyses, and supporting patients through their weight loss injection appointments. Patients consistently praise his technical precision, and his ability to make even the most needle-nervous patients feel at ease. What sets Matthew apart is his genuine attentiveness. He has a natural ability to understand what patients are feeling, a thoughtful and methodical approach to every interaction, and a quiet reliability that makes patients feel cared for from the moment they sit down. Whether he’s walking you through your body composition results, explaining your protein recommendations, or checking in on your progress, Matthew brings a calm, focused energy that keeps your wellness journey on track.

Matthew Rodriguez, CMA, LXRT Medical Assistant / Lab Technician Matthew is a certified Medical As... Read More

Paul Verhoeve — Health Coach & Patient Care Coordinator With a foundation in health sciences and a commitment to personalized patient care, Paul serves as a Health Coach and Patient Care Coordinator at BFF Medical Wellness Clinic. His role is to walk you through your wellness journey — helping you understand your health assessments, educating you on BFF’s comprehensive services, and ensuring a smooth connection with our clinical providers for any treatment decisions. Paul is known for his calm demeanor, genuine attentiveness, and the care he takes to make sure no question goes unanswered. Whether you are exploring hormone optimization, weight management, IV therapy, or skin and body treatments, Paul is your guide to understanding your options and feeling confident in your path forward.

Paul Verhoeve — Health Coach & Patient Care Coordinator With a foundation in health sciences ... Read More