Naming a condition and explaining it are not the same thing, and the gap between them is where most patients get stuck.
By Caroline Hoeffgen, COO, BCHC, JD | Medically reviewed by Dr. Isabel Sharkar, NMD | Last reviewed June 2026 · 7 min read
In short: Functional medicine in Washington DC looks for what is causing a chronic condition, not only what to call it. It pairs conventional care with advanced testing to find the driver behind complex, unresolved symptoms, then builds the plan around that driver.
By the time most patients find us, they arrive with a folder. Inside are the labs, the referrals, the diagnoses that named something without explaining it, or the workups that found nothing at all. What the folder never holds is the one thing they came for: a reason, and a plan that works for them.
Quieting a symptom and removing its cause are two different jobs, and the quick visit usually only has time for the first. We do that part too, because easing the symptom and keeping you comfortable matters. But it is not the whole job. Step on a tack, and the pain and inflammation are real; a painkiller helps, but it leaves the tack in your foot. The point is to find the tack, the thing setting the symptom off, and address that too.
It is also why cookie-cutter treatment so often falls short in complex illness. Without knowing the trigger, you can spend months treating the wrong system while the real driver keeps the symptom going.
So the investigation is never for its own sake. What we find decides what we treat, which means the plan is aimed at the real problem, not a guess. We follow it wherever it leads, sometimes far from the symptom that brought you in, because addressing the driver is what gives that symptom a chance to settle.
Where a symptom shows up is rarely where it starts. A patient comes in for a thyroid that won't stabilize, or for symptoms no one can explain, and the investigation leads somewhere they never expected.
Take Hashimoto's. Two people can carry the same diagnosis for different reasons. In one, the trigger is excess iodine, often from supplements or food, which research links to thyroid autoimmunity in people genetically prone to it. In another, it is something else entirely, a hidden infection like Lyme disease the standard workup never looked for. The right treatment depends on which.
Anxiety is another. For some people it is situational. But it can also come from inflammation in the brain set off by a hidden infection, and the bacteria behind Lyme disease is well documented to reach the nervous system. When that is the driver, talk therapy and psychiatric medication struggle to reach it, because neither is aimed at the infection underneath.
The gut tells the same story. Stubborn symptoms could be IBS, recurrent SIBO, IBD, or dysbiosis, an imbalance in the gut bacteria. But they could also be Alpha-Gal syndrome, an allergy to mammalian meat that develops after a tick bite. The reaction is delayed, often hours after a meal, and can show up as stomach symptoms alone, without the rash or swelling of a typical allergy.
That is why the diagnostic process is worth the time. The right treatment changes completely depending on what the investigation finds.
A diagnosis is where most workups stop, and where ours starts.
This is detective work, and the case file is everything: your full health history, specialty labs beyond standard panels, your environment, nutrition, stress, sleep, and exposures. We look at how your systems interact, because chronic illness rarely lives in one organ.
Underneath the symptoms is what we call the terrain, the internal ecosystem where disease takes hold. We work on the conditions driving the illness, not only the symptoms on top.
The tools are built around your biology, with no one-size protocol:
The fastest way to find out if this fits your situation is a Discovery Call.
The cases other clinics call too complicated are the ones this approach was built for:
Overlap is the rule here, not the exception. Most patients arrive with several of these at once, and untangling how they feed one another is what functional medicine does best.
The CDC counts DC, Maryland, Virginia, and West Virginia among the country's highest-incidence areas for Lyme. The mid-Atlantic sits with the Northeast and upper Midwest at the top of the national map. Add mold, mycotoxins, and other environmental drivers conventional care here rarely has time to investigate, and the picture gets complicated fast. Mold from water-damaged buildings is one of those drivers, and the mycotoxins it produces have been linked to long-running, multi-system illness that standard workups tend to miss.
For patients here, this is often the first model that makes sense of the whole picture. Lyme in this region tends to travel with co-infections a standard Lyme test was never built to find, which is part of why a clean result so often fails to close the case. Indigo has worked these cases since 2011, across more than 3,500 patients.
This works best for people who want to understand their own body, not just be handed a prescription. For a clinic that has worked these cases since 2011, finding the cause is often the more straightforward part. What restores your health is what comes after, and that part is shared work. Root cause medicine is not a passive experience, and the patients who get the most from it treat it as a partnership. They are willing to change their nutrition, sleep, lifestyle, and exposures, and to stay with the process when it takes time.
We bring the clinical depth and the roadmap. They bring the engagement. The outcomes belong to both.
A Discovery Call is a real clinical conversation, and it works in both directions. We want to understand your full history and what you've already tried, including what hasn't worked and why. We are also listening for fit, because we take on patients we truly believe we can help. If there's a fit, we talk about working together. If another kind of care makes more sense, we'll tell you.
The questions we ask on that first call are the same ones that shape your eventual care plan:
Indigo is not the right fit for everyone, and part of the call is figuring that out.
Spreading the cost of a complex illness across decades is its own kind of expensive. It comes from the specialist visits, the prescriptions, the repeat labs, the procedures, none of it reaching the driver underneath a complex case. That financial cost is real. Alongside it runs another kind of cost: time at half capacity at work, the trips that kept getting postponed, hours with your kids spent managing symptoms instead of being present. The bills and the lost time add up together, and the time is the part you can't recover.
Indigo's model puts the cost and the time up front instead, and that order is deliberate. You are paying for a thorough investigation and a plan that adjusts as we learn more, not years of managing a problem no one has explained. The model is built to find the answer and move you forward, not to keep you coming back for years. For patients ready for that, it lands differently than an expense.
The change patients describe is rarely subtle.
"Like a lot of patients, I felt like my regular doctors weren't trying to help my body heal but just keep putting bandaids on my symptoms. I was worn out and came to Indigo and I'm so glad I did."
"I came to Indigo Integrative Health after 4 years of trying and failing to get relief from chronic symptoms. I saw a battery of primary care physicians and specialists who kept referring me to each other."
"This powerhouse team goes above and beyond. I've always been the 1% with medical things and this is the first time I've felt heard, not crazy, and been guided through the correct tests and protocols to get answers."
"Dr. Sharkar gave me back my life. I had done everything I could think of, or learn about, to heal myself from multiple health conditions and had reached a dead end."
"I got the medical help that I actually needed and three years later I was actually able to conceive and have a baby."
"I felt like when I went in with her I was just hoping to find a way to maintain my life and be able to function and now I feel like I have my life back."
Patient experiences vary. These are individual results shared by real patients, and outcomes depend on individual health history and engagement with the care process.
Two situations bring most people to this point: symptoms no one will take seriously, or a diagnosis that explains nothing. If either sounds like you, functional medicine may be where you find answers. This is for patients across the Washington DC, Maryland, and Virginia area.
The clearest next step is a conversation, not another test. In our practice, we regularly see what changes when root cause medicine works:
How much changes, and how fast, depends on the person and the history they bring. It starts with one conversation, twenty minutes, no cost, about what you're dealing with and whether we can help.
Book a Discovery Call here.
This content is provided by Indigo Integrative Health Clinic for educational purposes only. It does not constitute medical advice, a diagnosis, or a treatment recommendation, and does not establish a provider-patient relationship. Individual health conditions vary — information presented here may not apply to your specific situation. Always consult a qualified, licensed healthcare provider before making decisions about your health, medications, supplements, or treatment plan.
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