How to Find a Peter Attia-Style Doctor in the Chicago Suburbs

Medicine 3.0 is Attia's term for a shift from reactive sick-care (Medicine 2.0) to proactive prevention of the Four Horsemen: cardiovascular disease, cancer, neurodegenerative disease, and metabolic dysfunction. A true Attia-style physician orders tests that predict disease decades in advance—ApoB to quantify atherogenic particle number (target typically <80 mg/dL for primary prevention, <60 mg/dL for secondary), Lp(a) to identify genetic cardiovascular risk, continuous glucose monitors to catch early insulin resistance, and DEXA scans to track visceral fat and bone density. They discuss exercise as medicine: Zone 2 cardio for mitochondrial health (typically 180 minutes per week at a conversational pace where lactate is 1.7–2.0 mmol/L), VO₂ max training because peak aerobic capacity is one of the strongest predictors of all-cause mortality, and strength training with specific targets (a 50-year-old woman should ideally farmer-carry half her body weight for two minutes). In our practice, we spend the first visit building a ten-year risk model, not just checking boxes for insurance. Nutritional discussions go beyond 'eat more vegetables'—we talk about protein targets (1.6 g/kg for muscle protein synthesis in midlife), leucine thresholds per meal, and time-restricted eating windows when appropriate. The hallmark is time: these visits are 60–90 minutes, not twelve.

Not every concierge practice is a longevity practice. Here's the framework we recommend for evaluating whether a physician truly practices Medicine 3.0:

1. Advanced Diagnostic Testing
Ask if they routinely order ApoB, Lp(a), insulin (fasting and post-glucose), HbA1c, homocysteine, high-sensitivity CRP, and Lp-PLA₂. A standard lipid panel (total cholesterol, LDL-C, HDL, triglycerides) is insufficient—LDL-C can be normal while ApoB is elevated, meaning you're underestimating cardiovascular risk.

2. Body Composition and Functional Metrics
Do they offer or refer for DEXA scans, VO₂ max testing, grip strength measurement, and movement screens? These are objective markers of healthspan. We track visceral adipose tissue (VAT) mass in grams, not just BMI.

3. Exercise Prescription Specificity
A longevity physician should discuss Zone 2 heart rate ranges, lactate testing, rucking protocols, and strength benchmarks by age and sex. If the advice is 'get 150 minutes of activity,' that's Medicine 2.0.

4. Time and Accessibility
Initial consultations should be 60+ minutes. Practices should offer same-day or next-day communication via text, portal, or phone. Panel sizes are typically 50–150 patients per physician, not 2,000.

5. Transparent Pricing
Most longevity practices charge $3,000–$8,000 annually as a retainer, plus lab costs. If pricing is hidden or bundled opaquely, ask for a detailed breakdown.

Start with the Function Health network—many Attia-aligned physicians use Function's 100+ biomarker panel as a baseline. Check the American Academy of Anti-Aging Medicine (A4M) directory, filtering for Illinois and board-certified MDs or DOs with fellowship training in functional or integrative medicine. The Institute for Functional Medicine (IFM) practitioner directory includes Chicago-area physicians, though not all focus on longevity specifically—look for those listing 'healthspan optimization' or 'preventive cardiology' in their bios. Search Hint Health's direct primary care map for Illinois; DPC practices often have the time structure for Medicine 3.0, though you'll need to vet their testing protocols. Finally, search LinkedIn and local executive networks—many Chicago-area longevity docs don't advertise publicly but rely on word-of-mouth referrals. In our experience, the best signal is whether the physician has completed coursework or mentorship with Attia's Early Medical group, though that information isn't always public. Reddit threads in r/PeterAttia and r/Biohackers occasionally surface names; cross-reference those with state medical board records to verify credentials and check for disciplinary actions.

When you schedule an introductory call or visit, ask these questions to separate true Medicine 3.0 practitioners from rebranded concierge internists:

'What advanced lipid markers do you order, and what are your ApoB targets?'
The answer should include ApoB, Lp(a), and possibly LDL particle number or size. If they say 'we do a comprehensive metabolic panel,' that's a red flag.

'How do you assess insulin resistance before someone is prediabetic?'
Look for mention of fasting insulin, HOMA-IR (homeostatic model assessment of insulin resistance), or oral glucose tolerance tests with insulin measurements at multiple time points. HbA1c alone is a lagging indicator.

'What does your exercise prescription look like?'
They should discuss Zone 2 training, VO₂ max intervals, and strength benchmarks. Bonus if they mention stability work, eccentric loading, or rucking.

'How do you screen for cancer beyond standard guidelines?'
Attia advocates for earlier and more frequent colonoscopies (starting at 40 for those with family history), low-dose CT for lung cancer in former smokers, full-body MRI for certain patients, and discussion of multi-cancer early detection (MCED) blood tests, though these are still investigational.

'What's your patient panel size and visit cadence?'
Panel size should be under 200. Expect quarterly visits in year one, then semi-annual once your protocol is stable.

If the physician deflects, rushes, or gives generic answers, keep searching.

Beware of practices that market 'longevity' but deliver standard care at premium prices. Red flags include: offering IV vitamin drips or peptide therapies as primary interventions without addressing foundational metrics like ApoB, insulin resistance, or VO₂ max; claiming to 'reverse aging' with proprietary supplements; using biological age clocks (epigenetic tests like GrimAge or PhenoAge) as the primary outcome rather than a research tool—these have promise but aren't yet validated for individual clinical decision-making; and refusing to coordinate with specialists or dismissing conventional oncology, cardiology, or endocrinology. A good longevity physician integrates with the medical system, they don't reject it. Also watch for physicians who completed a weekend course in 'functional medicine' but lack board certification in a primary specialty (internal medicine, family medicine) or relevant fellowship training. In our practice, we're transparent: I'm a board-certified DO with additional training in osteopathic manipulation and preventive medicine, and I regularly consult with cardiologists, endocrinologists, and exercise physiologists. Longevity medicine is a team sport, not a solo act. Finally, if a practice requires you to purchase supplements or labs exclusively through them at marked-up prices, that's a conflict of interest. You should be free to source your own.

We founded our Chicago-area longevity practice because we saw the same gap you're experiencing: highly motivated patients who'd read Outlive, tracked their glucose with a CGM, and wanted a physician partner who spoke the language of ApoB, Zone 2, and muscle protein synthesis—but couldn't find one locally. In our practice, the initial consultation is 90 minutes. We review your full medical history, order a baseline panel that includes ApoB, Lp(a), fasting insulin, HbA1c, high-sensitivity CRP, homocysteine, testosterone (total and free), thyroid function, vitamin D, and a complete blood count. We arrange a DEXA scan to measure visceral fat, lean mass, and bone density, and we refer for VO₂ max testing at a local exercise physiology lab when appropriate. We discuss your family history in detail—not just 'heart disease' but at what age, what interventions, and what that means for your ApoB target. We build an exercise prescription: if you're deconditioned, we start with daily walks and twice-weekly resistance training; if you're already active, we optimize Zone 2 volume, add VO₂ max intervals, and track grip strength and farmer-carry benchmarks. Nutrition is individualized—we don't hand out meal plans, we teach principles: adequate protein per meal, fiber targets, and how to interpret your CGM data if you choose to wear one. Every patient has my cell number. We're available via text for urgent questions and respond to portal messages within 24 hours. Our panel is capped at 100 patients because this model doesn't scale to thousands. We charge a transparent annual retainer, and labs are billed separately at cost. This is Medicine 3.0 as Attia describes it: proactive, personalized, and patient-driven.