Get to know Dr. Ash
Ashvin Vijayakumar MD, is a board-certified Internal Medicine physician dedicated to personalized, preventive care. He brings back the neighborhood doctor experience, ensuring patients are truly seen, heard, and cared for with thoughtful attention to detail.
With over a decade of experience in preventive care, and training in healthcare leadership at Mount Sinai, Dr. Ash helps patients navigate complex health systems with ease. He uses modern tools like advanced imaging, genetic testing, and wearable health data to craft personalized care plans tailored to each patient’s unique goals.
Dr. Ash is passionate about preventing illness, addressing health issues early, and empowering patients to take charge of their well-being. At Fishtown Medicine, patients benefit from 30 to 90-minute visits, same-day appointments, and direct access via text, voice, or video, ensuring care is convenient and comprehensive.
Dr. Ash lives in Fishtown with his wife, son and cats. In his free time, he enjoys rock climbing and camping, reflecting his active lifestyle and love for the outdoors.
“I believe health is a dynamic state shaped by the connection between body, spirit, community, and environment. Every person’s health story is unique and deserves personalized attention.”
FAQs About My Approach to Care
How long have you been practicing?
Since 2014, I’ve built over a decade of experience in comprehensive primary care, hospital systems, and working with insurers. My network includes specialists, nutritionists, therapists, and other healthcare professionals to provide comprehensive support for every client.
Do you focus more on prevention or treatment?
Prevention is my priority. About 70–75% of my work involves identifying risks early, creating tailored strategies, and offering guidance to help you avoid complications.
What can I expect during a visit?
Visits last 60–90 minutes, with some extending to 180 minutes — it depends on your unique needs. These extended sessions allow us to dive deep into your health story and create a plan tailored to your unique needs.
What labs and tests do you recommend for prevention?
I recommend actionable tests tailored to your personal health story, including:
Basic labs such as inflammatory markers and electrolytes, and advanced labs like lipoprotein (a) or apo (E) typing to assess cardiovascular and cognitive risk.
Genetic SNP analysis for clients with 23andMe, Ancestry or similar data.
Basic and advanced imaging studies personalized to your health risks.
Cancer screenings aligned with your family background.
I ensure all recommended tests are clinically meaningful and avoid unnecessary costs or confusion.
How do you stay informed?
I dedicate four hours each week to reviewing the latest medical research from trusted sources like the American College of Physicians, JAMA, and UpToDate. I also explore nontraditional resources like Examine and educational podcasts by thought leaders such as Peter Attia and Rhonda Patrick. This commitment ensures I provide you with evidence-based, cutting-edge care.
Are You Open to Going Beyond Standard Guidelines?
Yes. I screen, diagnose, and treat conditions early and aggressively to prevent complications. I apply principles of getting results first — which has brought me to the tools of the biopsychosocial model of care, integrative healthcare and functional medicine to get results for my patients. My approach is forward-thinking and tailored to your unique needs.
Why Choose Fishtown Medicine?
If you’re looking for a primary care doctor who prioritizes your long-term health, listens to your goals, and collaborates with you to create meaningful change, Fishtown Medicine is here for you.
With modern tools and a compassionate approach, I ensure your care is personal, effective, and convenient.
Ready to take control of your health?
Schedule your consultation below, and let’s take the first step toward better health together.
Comprehensive Preventive Care: My Interests and Skills
At Fishtown Medicine, I specialize in personalized, preventive healthcare to address and prevent a wide range of health concerns. My areas of expertise include:
Hormonal Health: Optimizing male and female hormones, including adrenal and thyroid health.
Metabolic Health: Supporting weight loss, nutrition, fasting, and managing insulin resistance.
Cardiovascular Health: Preventing and detecting atherosclerotic cardiovascular disease, hypertension, and lipid disorders early.
Bone and Joint Health: Preventing orthopedic injuries and managing osteoporosis with early assessment and intervention.
Chronic Disease Prevention: Addressing neurodegenerative diseases, cognitive impairment, Type 2 Diabetes, and metabolic dysfunction-associated liver diseases (MASLD/NAFLD).
Comprehensive Care: Improving sleep physiology, gut health, and reducing cancer risk through early assessments and personalized plans.
I also provide primary care services for adults, ensuring that all aspects of your health are addressed. While I don’t replace emergency or specialist care, I collaborate closely with specialists to provide you with the best resources for your health journey.
Professional Experience
Partner at Oak Street Health/CVS Health Ventures: Drove impactful national healthcare solutions by leveraging deep primary care insights and advocating for accountability across the healthcare continuum.
Medical Director and Primary Care Physician: Spearheaded initiatives to improve health outcomes, reduce hospitalizations, and deliver exceptional, patient-centered care within high-performing, comprehensive primary care settings.
Hospital Bedside Physician: Providing expert care in acute settings across premier academic and community health systems in South Jersey and Philadelphia. Quality improvement development and hospital workflows and patient transitions.
Consultant to frontline healthcare organizations: Transforming traditional care settings into value-based care models, with a focus on measurable patient outcomes and sustainable, system-wide improvements informed by experience across primary care, specialist practices, and hospitals.
Physician in innovative care models: Delivering care in virtual-first primary care frameworks, comprehensive executive health programs, and union worksite health centers, tailoring high-quality services to diverse patient populations.
Accreditations
MD Licenses: Pennsylvania Board of Medicine, New Jersey Board of Medical Examiners
Board Certification: American Board of Internal Medicine
Medical School: American University of Antigua College of Medicine
Residency: Internal Medicine, AtlantiCare Regional Medical Center
Fellowship: Value-Based Care Delivery Leadership, Mount Sinai Health System
See why neighbors choose Dr. Ash for personalized, preventive care.
Build effective habits for immediate results and a lifetime of wellness.
Text (267) 360-7927 or schedule your free consultation today!