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Concierge Longevity Physician in Texas
Board-certified gastroenterologist-led longevity medicine for Houston, Dallas, Austin, and high-performing Texas families. Virtual care, clinical precision, total discretion.
Who We Serve
Physician-led longevity medicine for Texas' most demanding principals, executives, and multi-generational families. Whether you’re based in Houston, Dallas, Austin, or anywhere across the state, your care is fully managed and seamlessly integrated into your schedule.
I. The Houston Energy & Medical Center Principal
Houston’s River Oaks and Tanglewood represent some of the most established private wealth in the United States — multi-generational energy families, upstream and downstream oil and gas principals, and the executive leadership of the world’s largest medical complex. The Texas Medical Center employs over 100,000 people and its senior leadership understands clinical science at a peer level. For the executive leadership of the world’s largest medical complex, LongevIQ GI provides peer-level clinical synthesis that transcends the standard executive physical offered by institutional systems. This is not a wellness program — it is a physician partnership built on the same depth of diagnostic thinking you apply to your most complex business decisions. Advanced gut microbiome sequencing, epigenetic age analysis, and cardiometabolic profiling — delivered by a board-certified gastroenterologist who operates entirely outside the insurance system. A Health Fiduciary for Houston’s most demanding principals.
II. The Dallas Corporate & Estate Principal
Dallas is home to one of the highest concentrations of Fortune 500 headquarters in the United States — and the principals who lead them. From the historic estates of Highland Park and Preston Hollow to the newer wealth corridors of Southlake and the Fort Worth estate enclave of Westover Hills, Dallas UHNW clients manage diversified asset structures that demand an equally diversified approach to biological stewardship. You are accustomed to institutional-grade advisory relationships — legal, financial, philanthropic. LongevIQ GI provides that same standard for your health. Physician-led, data-driven, entirely virtual, and built for a schedule that will not accommodate the friction of conventional clinic medicine. Your biology deserves the same oversight as your balance sheet.
III. The Austin Founder & Technology Leader
Austin has become the most significant founder and technology wealth market in Texas — and one of the fastest-growing UHNW populations in the country. West Lake Hills, Barton Creek, and Rollingwood are home to post-liquidity founders, venture principals, and technology executives who have already invested in their health at a basic level and now require something more rigorous. You have tried the subscription longevity platforms. You have done the wearables and the basic bloodwork. What you have not had is a board-certified gastroenterologist who understands that the gut microbiome is the upstream variable your previous protocols never measured. LongevIQ GI is clinical precision for founders who demand first-principles thinking applied to their own biology — not a wellness product, a physician partnership.
IV. The San Antonio & South Texas Principal
San Antonio’s UHNW community is defined by military leadership, healthcare system executives, multi-generational ranching and land wealth, and Latin American family principals with cross-border asset structures that require a physician who understands discretion as an operational requirement. The Dominion and Terrell Hills represent the primary estate geography; Boerne and the Hill Country corridor are home to ranching principals whose wealth is measured in land and legacy. LongevIQ GI serves this community with the same clinical depth available to any client — fully virtual, entirely outside the insurance system, and anchored in the most advanced diagnostics available. For the San Antonio principal accustomed to being underserved by the national longevity medicine market, this practice was built for you.
V. The Multi-Residence Texas Principal
Texas is your operational base, but your life moves between states and sometimes continents. Whether you maintain a second residence in Florida, a Philadelphia presence tied to institutional relationships, or an international schedule that makes any fixed clinic relationship impractical, your health infrastructure needs to function wherever you do. LongevIQ GI is fully virtual and licensed across Texas, Florida, and Pennsylvania. Your diagnostic baseline travels with you. Your protocol adapts to your schedule, your environment, and your biology — not the other way around. Dr. Banerjee remains your physician regardless of which timezone your calendar has placed you in. For the Texas principal who manages everything at a global scale, this is what physician-led longevity care looks like when it is built for your actual life.
Precision Medicine Houston — The Gut Is Where Biological Age Is Set
Standard longevity protocols ignore the gut — the primary regulator of systemic inflammation and biological age. Circulating microbial metabolites, intestinal barrier integrity, and microbiome-derived SCFA production are upstream variables that determine how every downstream intervention performs. CoQ10 and NAD+ supplementation demonstrate measurably reduced efficacy when gut dysbiosis persists. Epigenetic clocks accelerate when barrier function is compromised. This is the gap that no generalist longevity platform addresses.
At LongevIQ GI, every protocol begins with the biology that the rest of the field omits. Led by a board-certified gastroenterologist with deep microbiome expertise and over 15 years of clinical and research experience, we build longevity strategies from the gut up — because that is where biological age is actually set. Dr. Banerjee operates entirely outside the insurance system — no volume incentives, no conflicted referral networks. Clinical loyalty to one principal: you.
Why Early Detection Changes Everything
Breakthrough diagnostics uncover risks years before symptoms appear — giving you the advantage of time.
is the accuracy with which gut microbiome can distinguish healthy to diseased individual[1]
of cancers detected on preventive whole-body MRI have no recommended screening pathway[2]
increase in cancer detection when MCED (multi cancer early-detection) blood test is combined with recommended standard screening[3]
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Subhra “Sam” Banerjee
MD, FACG, FACP
15 years of clinical and research experience, now applied exclusively to precision longevity and gut-informed biological optimization.
Board-Certified Gastroenterologist
Fellowship: Gastroenterology & Hepatology, Mount Sinai Health System, New York City
Fellow, American College of Gastroenterology (FACG) | Fellow, American College of Physicians (FACP)
Clinical Researcher | Phase III Trials | PubMed-Indexed Publications | AI Diagnostics in Gastroenterology
The Process
We’ve designed a streamlined, white-glove experience that delivers high-impact insights and measurable outcomes — entirely virtually
Deep Phenotyping
Advanced gut microbiome sequencing, epigenetic age analysis, comprehensive cardiometabolic profiling, toxic load assessment, and VO₂ max evaluation. We establish your complete biological baseline — not a snapshot, a full systems map.
Strategic Protocol
A personalized longevity roadmap built from your diagnostic data. Every intervention is evidence-anchored. Supplements and nutraceuticals are deployed only where clinical evidence is unambiguous. The protocol is yours — designed around how your life is actually structured.
Active Stewardship
Quarterly physician-led optimization and refinement. Your biology changes; your protocol adapts. Ongoing direct access to Dr. Banerjee — not a care coordinator, not a patient portal. The physician.
Texas residents: your longevity protocol begins with a single conversation.
LongevIQ GI is a physician-led, fully virtual practice serving clients across Houston, Dallas, Austin, and Texas statewide — and licensed in Florida and Pennsylvania. Evening and weekend availability. Complete discretion.
No referral required. No commitment. 30 minutes with Dr. Banerjee.
