Restore your body's natural ability to heal.
Physician-led regenerative care in Phoenix — stem cell, hormone and peptide therapies built around your biology and your goals.
Medicine that treats the root, not the symptom.
From hormone optimization to medically guided weight loss — comprehensive care designed to help you feel and function at your best.
Your healthiest years are ahead of you.
Regenerative injections, NAD+ therapy and longevity medicine — delivered with precision and genuine attention.
Advanced medicine, tailored to your biology
Modern Doctor is a physician-led practice in Phoenix built on a simple belief: your body is designed to heal, and the right medicine helps it do exactly that. We combine regenerative therapies, hormone science, and personalized protocols to help you feel like yourself again.
- Physician-supervised, evidence-based protocols
- Personalized plans — never one-size-fits-all
- Regenerative & longevity-focused care
- Ongoing support for lasting results
Dr. Kimberly Green Lustig
Early in my medical training, I witnessed a pattern that troubled me — patients rushed through visits, prescriptions offered quickly, and deeper questions left unasked.
I knew then that medicine could be practiced differently.
Years later, searching for answers for my own child, I experienced care that honored the body's capacity to heal when supported intelligently and intentionally. That experience confirmed what I had sensed from the beginning: healing requires precision, respect, and partnership.
Green Institute for Longevity & Cognitive Medicine was built on that conviction.
We do not accept decline as inevitable.
We do not default to overmedication.
We do not dismiss concerns as “just aging.”
We investigate.
We measure.
We design structured plans.
We protect strength, cognition, and independence with intention.
If you are seeking clarity, structure, and a physician who will listen deeply and act decisively — you are in the right place.
— Welcome Home
Dr. Kimberly Green Lustig
Measured. Intentional. Long-term.
Understand the root
We look beyond symptoms to what's actually driving how you feel — using your history and labs as the map.
Personalize the plan
Your protocol is built around your biology and goals, combining therapies only where they genuinely help.
Stay the course
We track your progress and refine over time, because meaningful results are built, not rushed.
A closer look at what we offer
Tap Learn more on any therapy to see what it helps with, what's involved, and who it's for.
Regenerative Medicine
Stem cell infusion, regenerative joint injections and prolotherapy / PRP — harnessing your body's own repair systems to restore function and reduce pain.
Regenerative medicine works with your body's biology to repair tissue, calm inflammation and restore function — rather than simply masking symptoms. At Modern Doctor this includes stem cell–based infusions, regenerative joint injections and prolotherapy / PRP (platelet-rich plasma), each chosen to match your specific goals and anatomy.
What it can help with
- Chronic joint, tendon & ligament pain
- Osteoarthritis & age-related wear
- Sports & overuse injuries
- Slow-healing soft-tissue injuries
- Mobility, strength & recovery
What to expect
- A consultation and, where helpful, imaging or labs to confirm you're a good candidate
- A targeted, physician-designed treatment plan
- Precise, in-clinic injections or infusion
- Follow-up to track healing and refine as needed
Who it's for: People who want to address the source of pain and support natural repair — often before considering surgery.
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Hormone Optimization
Testosterone replacement (TRT) and bioidentical hormone therapy (BHRT), precisely dosed from your labs to restore energy, balance and vitality.
Your hormones shape energy, mood, sleep, focus, body composition and libido. We offer testosterone replacement therapy (TRT) and bioidentical hormone replacement therapy (BHRT) for men and women — always dosed from your labs and symptoms, and monitored over time so your levels stay in a healthy, comfortable range.
What it can help with
- Low energy, fatigue & poor sleep
- Low libido or mood changes
- Difficulty building muscle or losing fat
- Brain fog & lack of focus
- Menopause & andropause symptoms
What to expect
- A comprehensive hormone panel and symptom review
- A personalized plan reviewed with your physician
- Prescription therapy where appropriate
- Ongoing monitoring and fine-tuning of your dose
Who it's for: Adults noticing age-related hormone changes who want a measured, closely-monitored approach.
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Medical Weight Loss & GLP-1
Doctor-guided semaglutide and tirzepatide programs (with B12 & glycine) that support appetite control, metabolic health and sustainable results.
Our medically guided weight-loss programs may include GLP-1 therapies such as semaglutide or tirzepatide (paired with B12 and glycine), combined with nutrition and lifestyle guidance for results that last. Everything is prescribed and supervised by licensed clinicians — it's real medicine, not a crash diet.
What it can help with
- Appetite & cravings that feel hard to control
- Metabolic health & blood-sugar balance
- Steady, sustainable weight loss
- Breaking through stubborn plateaus
- Building lasting, healthier habits
What to expect
- A medical eligibility screening and goal-setting visit
- A personalized program tailored to your body
- Prescription therapy where medically appropriate
- Regular check-ins to monitor progress and adjust
Who it's for: Adults who qualify medically and want a supervised, whole-person approach to lasting weight loss.
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NAD+ Therapy
NAD+ therapy to support cellular energy, focus, recovery and healthy aging — delivered in a calm, private setting.
NAD+ is a coenzyme your cells rely on for energy production and repair, and it naturally declines as we age. NAD+ therapy helps replenish it to support cellular energy, mental clarity, recovery and healthy aging — delivered comfortably in a calm, private setting and paired with your other therapies where it helps.
What it can help with
- Low energy & persistent mental fog
- Recovery, resilience & performance
- Focus & cognitive clarity
- Healthy-aging & longevity support
What to expect
- A consultation to set your goals and cadence
- A tailored NAD+ protocol
- Comfortable, supervised sessions
- Guidance on pairing with other therapies
Who it's for: People focused on energy, longevity and recovery who want to invest in how they feel day to day.
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Vitamin & Peptide Injections
Targeted B12, nutrient and peptide injections to support recovery, immunity, metabolism and performance — tailored to what your body needs.
Sometimes the most effective support is targeted and simple. We offer B12, nutrient and peptide injections chosen to support energy, immunity, metabolism, recovery and performance — matched to what your body actually needs and easy to fit into your routine with quick in-clinic visits.
What it can help with
- Energy & metabolism
- Immune support
- Recovery & athletic performance
- Nutrient repletion & overall wellness
What to expect
- A review of your goals and, where helpful, labs
- A recommended injection plan
- Simple, quick in-clinic visits
- Adjustments as your needs change
Who it's for: Anyone wanting a convenient, targeted boost as part of a broader wellness plan.
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New Patient Comprehensive
A thorough new-patient evaluation that maps your health from the inside out — the foundation for a personalized plan and ongoing follow-up care.
Great care starts with truly understanding you. Your comprehensive new-patient visit is an unhurried evaluation that maps your health from the inside out — your history, your goals and, where helpful, your labs — so we can build a clear, personalized roadmap and coordinate the right therapies over time.
What it can help with
- Understanding your true baseline
- Identifying root causes, not just symptoms
- A clear, personalized health roadmap
- Coordinating the right combination of therapies
What to expect
- An unhurried consultation covering history & goals
- Lab review where helpful
- A personalized protocol built around you
- A follow-up plan to track progress over time
Who it's for: Every new patient — it's the best place to start your journey with Modern Doctor.
Book NowEvery therapy, one philosophy
Whichever service brings you in, the approach is the same: understand the root cause, personalize the protocol, and support you for the long term.
1. Comprehensive evaluation
We start by understanding your history, goals and labs — the full picture, not a snapshot.
2. Personalized protocol
Your physician designs a plan around your biology, combining therapies where it helps.
3. Ongoing optimization
We track your progress and refine over time so results are real and lasting.
Practitioner-grade supplements, curated for you
Access the same professional, medical-grade supplements Dr. Green Lustig trusts — hand-selected for purity and potency, and delivered straight to your door through our private online dispensary.
- Medical-grade formulations
- Third-party tested
- Shipped to your door
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Care that's built for you — not the average
Tired of feeling rushed, dismissed, or handed a one-size-fits-all plan? Modern Doctor takes a personalized, physician-led approach — because real, lasting results come from treating the whole person, not just a number.
Root-cause care
Protocols focused on healing and long-term vitality, not quick fixes.
Advanced therapies
Regenerative and longevity medicine backed by modern science.
Physician-led
Every plan is supervised by a licensed physician who listens.
Our proven process
Simple, transparent, and built around you
There's no guesswork and no pressure. We start by understanding your health in depth, then design a plan you actually understand — and we stay with you as it works.
Four steps to feeling like yourself again
Comprehensive consultation
We sit down to understand your goals, symptoms, and health history — and, where helpful, review labs to see the full picture.
Personalized protocol
Your physician designs an individualized plan — regenerative, hormone, weight-loss, or injection therapies — matched to your biology.
Prescribed therapy & monitoring
Treatment is prescribed and supervised by licensed professionals, with dosing and timing tailored specifically to you.
Ongoing optimization
Regular follow-ups let us track your progress and refine your plan so results are real, safe, and lasting.
The benefits of personalized care
- Root-cause focus, not symptom masking
- Physician-supervised at every step
- Protocols personalized to your labs and goals
- Advanced regenerative & longevity therapies
- Clear communication — you always know the plan
- Ongoing support and progress tracking
Results vary by individual and are not guaranteed. Medical eligibility is required, and not every therapy is appropriate for everyone. Prescription therapies require a medical evaluation by a licensed provider.
A private practice for focused care
No crowded waiting rooms or conveyor-belt medicine — just a calm, discreet setting where your time with the physician is unhurried and entirely about you.
Visit us in PhoenixReal people, restored vitality
“I finally feel like myself again. The team actually listened, built a plan around my labs, and checked in every step of the way. My energy is completely different.”
“The regenerative joint injections gave me back movement I thought was gone for good. Professional, warm, and genuinely invested in how I felt.”
“The weight-loss program plus coaching finally clicked for me. It never felt like a quick fix — it felt like real, sustainable medicine.”
Frequently asked questions
Ready to feel like yourself again?
Book your consultation and discover how Modern Doctor's personalized regenerative and longevity medicine can work for you.
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