Smile House: The Dentist Appointment I Actually Wanted to Go Back To
A conversation with Cody Levine of Smile House on why dentistry, longevity and hospitality need to talk to each other
Last week I argued the oral health category is being built in fragments. Strong science, strong consumer brands, real diagnostics, and no connective tissue between any of them. Smile House is the closest thing I’ve found to the assembled version, so I went. Here is diagnostics-first dental up close, mostly in the words of the person building it.
This is the House Call I promised.
SERVICE TESTED: SMILE HOUSE
55 Warren Street, Tribeca, NYC | smilehouse.co
THE SETUP
I have hated the dentist my whole life. I said as much within a minute of walking in. I’m a prime client. Terrified, and here anyway.
So I walked into 55 Warren Street already suspicious. It looks like a boutique hotel, and a beautiful room is a very effective way to distract you from mediocre care. Cody, who runs the place with his brother Julian, described it the way you’d describe a room and not the way you’d sell one: “designed to feel more like a living room or boutique hotel.” Then the reasoning. “Dentistry is often associated with fear, stress, anxiety, needles, pain. Here it’s about nervous system regulating.” A dental office organized around the nervous system is either a marketing line or the most current thing in the building. (I’ve been writing about nervous system regulation as the 2026 throughline for a while. I did not expect to run into it at the dentist.)
Then he handed me a saliva test before he handed me a chair. That is when I understood what kind of place this was.
WHO BUILT IT
Smile House is the downtown expansion of Dr. Jonathan B. Levine’s practice, JBL New York City, which has run on Fifth Avenue for close to 40 years. “He’s got 27 patents on teeth whitening and therapeutic products,” Cody told me. If you’ve ever used one of those blue-light whitening devices, you’ve used his father’s work. That’s GLO Science. Cody and his brother Julian grew up inside the business. “I was seven, my brother was ten, and we started packing our first product on the ping pong table.”
Cody brought the practice downtown. Fourteen doctors across every specialty under one roof, seven suites, multi-specialty on purpose. “You’re not getting sent all over town and things are getting lost in translation.”
The credibility, for me, is in the origin. The GLO Good Foundation, co-founded in 2011 by Dr. Levine with his wife Stacey, Cody, Julian, and longtime friend Lenny Kravitz, started with a woman in Rwanda. The way Cody tells it, she “lost her four front teeth during the genocide in ‘94, by the butt end of a machete,” and when they rebuilt her smile, “that was the first time she looked in the mirror in 18 years.” His verdict on the moment was “pretty cool,” which is characteristically not what it was. Ten years of free missions in the Bahamas followed, with more coming in the States.
This is a family that has been making one argument, the mouth is the body, across philanthropy, products, and now a flagship, for over a decade. The origin earns the ambition of everything else
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WHAT ACTUALLY HAPPENS THERE
Cody walked me through the diagnostic framework. They call it mouth mapping: “a 360 degree view of your mouth as it relates to whole body health,” turned into “a personalized, data-driven plan.” Four pillars. Aesthetics is full smile design, with a digital render of your future smile before anyone touches a tooth. Structure is airway and jawbone, which is how a sleep and breathing evaluation ends up happening at the dentist instead of three referrals away. Function is how the teeth meet and chew. Biology is what is actually living in your mouth, and what it might be saying about the rest of you.
The saliva work runs two levels. The point-of-care test, “15 minutes, we get results,” flags urgent bacteria on the spot. Then the lab version: “we’re testing 250 biomarkers,” back in about two weeks, a full read on the oral microbiome. Cody’s framing: “like your blood work, this is a salivary test. Early indication of downstream impact on cardiac health, cognitive health, you name it.” That is a big claim, and I want my own results before I co-sign the whole chain. But it is the first time I have left a dental chair curious about a result instead of relieved it was over.
I covered the science underneath all this in last week’s map, so I won’t relitigate it here. The part worth naming is the part almost nobody in this category reaches: the loop closes. Most diagnostics hand you a number and a shrug. I’ve watched company after company do exactly that, call it empowerment, and move on. Cody named the gap as well. “We’re all optimizing. Thank you for the data, what do I do now? We connect the dots and provide those treatments.” That is the entire difference. Smile House is one of the only places I’ve seen building clinical infrastructure around the science rather than citing it in a brochure. “Root cause analysis is really our main focus.”
EVERYTHING ELSE ON SITE
The range is a lot, in the good way. A CBCT scanner, “a three dimensional CAT scan, nose to throat,” for sleep and airway: deviated septums, a constricted throat, the mechanical reasons people snore and wake up at 3 a.m. It also reads below the gum line for hidden infection and the leftovers of old dental work. “We see a lot of that,” Cody said. “Unfortunately.” The in-house lab makes crowns, bridges, veneers, and full-mouth reconstruction, designed digitally and sometimes turned around in a day. The finishing hand belongs to Fatty, their master ceramist from Italy. “Think master somm in the wine space, but a true artist.” TMJ care runs from 30-minute jaw massages to Botox to M-Face, a non-invasive high-frequency muscle stimulation device. Estheticians twice a week. Implants, bone grafts, gum grafts, surgery, all handled in-house.
I also had stitches removed while I was there, left over from a procedure in another city. My healthcare, like most people’s, is scattered across wherever I happened to be when something needed attention. Smile House absorbed it without fuss. That flexibility is rarer than it should be.
I left with oral probiotics (not standard dental inventory), the family’s toothpaste, and floss I am genuinely using. Cody calls one of the products his “killer product,” expensive to make, “like an ice bath for your mouth.” He would not say which one. Same thinking as the practice: the mouth as an ecosystem, not a set of teeth to be cleaned.
WHY THIS ONE MATTERS
It’s one location. It’s high-end. Not everyone will have access to this, and that is worth saying out loud.
The map showed the category in pieces. Consumer brands with nothing diagnostic underneath. Biological dentists with the right science and the wrong brand register. Microbiome tests with no clinician to read them back to you. The version where your microbiome gets sampled the same day your teeth get cleaned, where someone reads your saliva next to your blood, where your daily products are calibrated to what your mouth actually needs, mostly does not exist yet.
Smile House has built most of it. A category needs a working example before anyone can fund or build the version that scales. This is the working example, and that is the reason it matters past the four walls of one Tribeca practice.
Cody’s whole philosophy is that diagnostics come first. I’m still waiting on my 250 biomarkers to tell me whether my mouth has been trying to explain my gut to me this entire time. I’ll report back.
TL;DR
The Seal Pillar
Verdict
Did it deliver?
Yes. Left with data incoming, products I actually use, and a rebooked appointment.
Science or snake oil?
The 250-biomarker saliva test is the most interesting thing I’ve walked out of a dental office holding. The clinical infrastructure under it is the part missing from most longevity-dental talk.
Pain, price & weirdness
Premium, one location only, not for everyone, and worth saying so. The anxiety, though, solved by design.
Would I do it again?
Yes. And I want to. Which, from me, is the entire endorsement.
The Seal: [5/5]
Further reading
The Most Under-Diagnosed Organ in Longevity - the map, the science, and the integration layer no one has built yet. Full citations live there.
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