What is the difference between an internist and a family doctor? Both are primary care physicians, but they train for different patients. A family medicine doctor is trained to care for people of every age, children included. An internist, a doctor of internal medicine, trains only in adult medicine, with a heavy focus on diagnosing complex problems and managing several chronic conditions at once. Dr. Jeffrey L. Stein, MD is an internist, and that training shapes how Boca Raton Concierge Medicine works.
The names confuse people, and it doesn’t help that “internist” sounds a lot like “intern.” So here is a plain explanation of what each type of doctor does, and how to decide which one fits you.
What an internist is trained to do
Internal medicine is the specialty of adult care. According to the American College of Physicians, internists spend at least three of their seven or more years of medical school and postgraduate training learning to prevent, diagnose and treat diseases that affect adults. Much of that residency happens in the hospital, caring for patients whose problems are serious, unclear or tangled together.
That shows up in the exam room. Internists are used to the patient whose blood pressure, blood sugar, cholesterol and medications all affect one another, and who needs one doctor looking at the whole picture rather than four specialists each looking at a piece. They’re also trained to know when a symptom points to something that needs a closer look, and which specialist should get the referral.
Some internists go on to subspecialize in cardiology, endocrinology, gastroenterology and other fields. Others, like Dr. Stein, practice general internal medicine and serve as the adult patient’s main physician over the long term.
What a family doctor is trained to do
Family medicine covers the whole family. A family physician can see a newborn, a teenager, a pregnant patient and a grandparent in the same afternoon. Their training spreads across pediatrics, women’s health, adult medicine and minor procedures, which makes them a good fit for households that want one practice for everyone.
The tradeoff is depth. Family physicians cover more ground across age groups. Internists go deeper into adult disease. Neither is better in general. They answer different needs.
Which one makes sense for you
If you have young children and want them seen at the same practice as you, a family doctor is the natural choice.
If you’re an adult, and especially if you’re managing more than one ongoing condition, take several medications, have a strong family history of heart disease, or simply want a physician focused entirely on adult health, an internist is a strong fit. Many of our patients come to us after years of rushed visits where nobody connected their lab results, their medications and their symptoms. That connective work is what internal medicine trains for. You can see how we approach it on our chronic disease management and preventive care and annual physicals pages.
What “primary care” means for an adult with a busy life
For most adults, the real value of a primary care physician isn’t the annual physical. It’s having one doctor who knows your baseline. When your energy drops, your blood pressure creeps up, or a new specialist prescribes something, the physician who already knows your history can tell what’s new and what’s normal for you. That continuity matters more with every year and every added diagnosis, which is why many adults move to an internist as their health gets more complicated.
Where concierge medicine fits in
Training is only half of it. The other half is time.
A well-trained internist working in a high-volume practice still has a schedule that allows a few minutes per patient. That isn’t enough time to think through a complicated case. The concierge model exists to fix that problem. A smaller patient panel means longer visits, real conversations, and a doctor who knows your history without reading it off a screen for the first time.
Boca Raton Concierge Medicine combines the two. Dr. Stein brings 34 years of experience in internal medicine and has been named Boca Raton Doctor of the Year three times, in 2017, 2019 and 2025. The concierge structure gives him the time to use that experience on each patient. We explain the model in more detail in concierge vs. traditional primary care.
A few questions to ask any doctor you’re considering
Whichever type of physician you choose, ask how long a typical visit lasts, how you reach the doctor between appointments, who you’ll actually see when you call, and how the practice coordinates with specialists. The answers tell you more about the care you’ll get than the title on the door.
If you’d like to talk about whether an internal medicine practice is the right fit for you, call us at (561) 483-5500 or reach out through our contact page. You can also read more about Dr. Stein and the practice.