Philadelphia

Opening 2025

MD2 Concierge Medicine: Philadelphia Concierge Medical Practice Located in Conshohocken
MD2 Concierge Medicine: Philadelphia Concierge Medical Practice Located in Conshohocken

The MD² Philadelphia concierge medicine office located in Conshohocken is scheduled to open in 2025. Please contact us for more information about our unique model of concierge medicine and to reserve your spot on our pre-opening outreach list.

Professional photograph of Concierge Doctor William N. Duffy

Dr. William N. Duffy

Dr. William N. Duffy is a distinguished internal medicine physician and leader who has been practicing in the Philadelphia area for over 30 years. Renowned for his comprehensive approach to patient care, Dr. Duffy serves as both a physician and a lifestyle advocate, guiding his patients towards healthier living through comprehensive lifestyle and nutritional advice. His dedication to his patients and to the field has earned him recognition as a Castle Connolly Top Doctor for over a decade as well as numerous Top Docs designations in Philadelphia Magazine.

He earned his Bachelor of Science degree from Seton Hall University, graduating magna cum laude from Seton Hall University with honors. From there he earned his degree from Georgetown University School of Medicine and returned home to the Philadelphia area to complete his residency in Internal Medicine at Thomas Jefferson University Hospital. Dr. Duffy is board-certified in Internal Medicine and is also a certified personal trainer through the National Academy of Sports Medicine.

Upon completion of his residency, Dr. Duffy started practicing within the Jefferson Health System and maintained his academic responsibilities teaching both students and residents in the hospital and his office. In 2001, he was honored as a teaching attending of the year by the Internal Medicine residency program at Thomas Jefferson University.

In 2002 he took the opportunity to work in the University of Pennsylvania Health System and has been there over 20 years. After changing to Penn Medicine, Dr. Duffy maintained his teaching and is an associate professor of clinical medicine at the Perelman School of Medicine. In 2016, he was selected to be one of only 7 physicians in Penn Medicine to be part of Penn Personalized Care (a type of concierge program).

He is an active member of several professional and scientific societies, including the American College of Lifestyle Medicine and the American College of Physicians. Additionally, he contributes to the Culinary Medicine Leadership Board at the Perelman School of Medicine.

Dr. Duffy has held significant teaching and clinical responsibilities, including serving as a past team physician for the Philadelphia Flyers and the Philadelphia Eagles. He is a co-founder and educator in Culinary Medicine at the Perelman School of Medicine and has been a consultant to multiple educational courses for medical students, colleagues and public alike.

With a keen interest in lifestyle medicine, Dr. Duffy focuses on the concept of food as medicine and has delivered numerous talks on plant-based nutrition and culinary medicine. He is passionate about the importance of lifestyle modification in both the prevention and treatment of disease, considering each patient's unique environment and personal circumstances. Dr. Duffy's comprehensive approach to patient care includes discussions on nutrition, exercise, stress management, family support systems, and overall well-being. He strives to collaborate with his patients to help them achieve their best health outcomes.

Professional photograph of Concierge Doctor Antonette Brigidi

Dr. Antonette Brigidi

Dr. Antonette Brigidi is a highly respected board-certified internal medicine physician known for her compassionate and empathetic approach to patient care. Dr. Brigidi maintains the early commitments that earned her superlative reputation- partnering with patients to improve wellbeing, and unwavering advocacy.  Raised in a multigenerational Italian American household outside Philadelphia, she developed a deep appreciation for long-term therapeutic relationships with patients and families. She finds the most fulfillment in fostering therapeutic bonds that enable each patient to enjoy their uniquely rich and meaningful lives. Dr. Brigidi accomplishes this through an emphasis on health and wellbeing, seamlessly folding in multi-specialty care and therapeutic lifestyle interventions. It is the highest compliment for patients to ask her to care for others whom they hold dear.

Dr. Brigidi earned her undergraduate degree in chemistry with Honors from The Johns Hopkins University, then her doctorate in Medicine at the University of Maryland School of Medicine. She completed her postdoctoral Internship and Primary Care Residency in Internal Medicine at the Hospital of the University of Pennsylvania in Philadelphia.

After her training, Dr. Brigidi joined a general internal medicine practice at Chester County Hospital but returned to Penn as faculty in 2010, recognizing she craved the collaborative teaching environment for her own continued learning. At Penn, she has seen patients and taught medical, nursing, and pharmacy trainees in numerous internal medicine ambulatory and inpatient sites in West Philadelphia and spent 10 years seeing patients at Penn Medicine at Radnor.

In 2020, Dr. Brigidi was recruited to join Penn Signature Services as Chief Medical Officer, where she saw patients and co-directed Executive Health, the Penn Passport program (a membership travel program), and Penn Global Medicine at the Perelman Center for Advanced Medicine (PCAM). In 2024, as these programs grew and she developed an interest in Lifestyle Medicine, she transitioned to Lead Physician for Penn Executive Health at PCAM, while continuing to see primary care patients. She is passionate about gardening and cooking, inspired by the culinary medicine course she co-directs at the Perelman School of Medicine. Dr. Brigidi holds the unique distinction of being Board Certified in Internal Medicine, a Diplomate of the American Board of Lifestyle Medicine, as well as a Fellow of the American College of Physicians.

For Your Consideration

There is a purity to MD2 you will not find elsewhere. At the heart of it, you are 1 of just 50 families who retain the services of a personal physician who knows you as well as their own family. The all-inclusive monthly fee is $2,334 for an individual and family members can be added at an additional cost. We do not bill insurance or Medicare. The MD2 fee ensures absolute, unlimited access to your physician, as well as their physician partner, and covers all care and services provided by the office.

Is there an annual contract for services?

We believe medical care should be based on a deeply meaningful relationship between a physician and a patient that ideally lasts a lifetime – not a contract. The only contract we use reflects our promise to you. It binds us to you, not the other way around. There is no obligation on your part. If for any reason you wish to depart MD2, you can cancel your services at any time without any financial commitment. Your doctor will graciously work with you to establish care with another physician of your choosing.

What services are included?

Simply put, every primary care service is included. There is no additional billing. To help you understand the term “primary care,” think of it as all the care and services required when you “go to your doctor.” But in this case, your doctor is a star internist who graduated at the top of their class and is regarded as the master diagnostician – an art that can be lost today, but never at MD2.

This includes such things as an extensive annual physical, unlimited visits, house and workplace calls, x-rays, routine lab tests and diagnostics indicated by your age, health, and conditioning status. These tests may include blood panels, cardiovascular screening, cancer evaluations, and whatever else your physician believes will promote your healthiest lifestyle. When you leave an MD2 office, you are never handed a bill for our services.

With unlimited time, your MD2 physician will go beyond the customary. They will guide you to appropriate consultants, specialists, and surgical services as needed and often accompany you to those appointments to ensure complete continuity of care. Your care is thorough and extensive yet always custom tailored.

Will my physician manage my care while I am traveling?

MD2 was explicitly designed to accommodate families who travel frequently and often live in a second residence for at least part of the year. Caring for highly mobile families is our specialty. Your physician will always remain your primary contact when you or your family travels; they will be your first call if you have a medical need and are prepared to care for you, regardless of your location. In addition, prepping for travel and planning your care while you are away will be a key element of your care. Should you fall ill or need medical attention while in another city with an MD2 office, your physician will coordinate care for you with their MD2 partner in that city. Lastly, as an MD2 patient, you are enrolled in a worldwide medical evacuation service, should you ever need it.

What if my physician goes on vacation?

We've set up each MD2 practice so that your physician or their partner will always be available to you. You will have direct access to both physicians’ private cell phones, which you can call anytime, day or night. If your physician is unavailable, you will have direct access to their MD2 partner physician. You will never have to go through a front desk, an obscure exchange service or even a nurse to get to your physician or their partner, even if they are on vacation.

What if I need to go to the hospital?

At MD2, you will never be left alone in your time of need. Shockingly, it has become customary today that physicians no longer follow patients during hospitalization. Instead, they leave their patients in the hands of hospitalists. At MD2 we believe this is unacceptable. MD2 physicians visit their patients while in the hospital and orchestrate care with medical specialists in any field. Should you require a hospital stay, your physician will be at your side as your advocate and quarterback.

Furthermore, if specific health services would be best provided at a medical center in another city, your MD2 physician will make all the arrangements for your stay and continue to be involved in overseeing your care.

Can my children join MD2?

As internists, we specialize in the care of adult patients, however, the age at which children transition out of pediatric care varies by individual. It’s a wonderful discussion to have with your MD2 physician. Please know that even when your child is under the care of their pediatrician, we welcome being involved and receiving questions. Multi-generational care is our specialty.

Transform Everything You Thought was Possible

We welcome your inquiry by giving us a call at 425-658-0959, or completing the form.