Longevity and functional medicine clinic · New York, New Jersey and online

Told everything is normal, but you don't feel normal?

We test deeper than a standard checkup, then build a plan around your results, with a clinician and a coach to see it through. Already feel good? We measure how you are aging and help you stay ahead.

Free · 20 minutes · No pressure · Bring recent labs for a free review

Interested in peptide therapy? See how we do it →

★★★★★ 5.0 on Google1,000+ patientsClinician-led, with physician medical directionRetesting every 3 monthsHSA/FSA accepted

What brings you in?

Start with what you want to change.

Pick the closest fit. Your clinician confirms the right path on your free call.

Healthspan Year program at Heal From Within

Longevity & healthy aging

Age well, and prove it.

  • Biological age testing, plus a 110-marker panel every 3 months
  • Monthly coaching so the plan actually happens
  • 15% member pricing on peptides, bioregulators and hormone therapy
“I found out a few of my systems were aging faster than they should be.”Claudia M., Google review
Correct and Restore Year program at Heal From Within

Functional medicine

Something feels off, but your labs say “normal.”

  • Comprehensive gut, hormone and nutrient testing chosen for your symptoms
  • A plan in stages: find balance first, then optimize
  • 6 clinician visits and 6 coaching sessions over the year
“Before I met with him, I had no idea what was going on, but now I have the answers I need.”Chase N., Google review
Peptide Therapy program at Heal From Within

Peptide therapy

Peptides chosen from your labs.

  • Starts with a free review of your recent bloodwork
  • Prescribed by a licensed clinician, with follow-up labs about every 3 months
  • From compounding pharmacies and vetted suppliers, never “research use only”
“His guidance and protocols with peptides have been incredible for weight management, sports recovery, and anti-aging.”Stacey K., Google review
Muscle-First Start-to-Finish GLP program at Heal From Within

GLP weight loss & body composition

Lose the weight. Keep the muscle.

  • Labs before you start, then every 3 months
  • A muscle protection plan with a coach who specializes in GLP therapy
  • A planned taper so the results can last
“When I first started, I honestly wasn’t sure that GLP-1 treatment would work for me.”Magda H., Google review
Precision Hormone Program at Heal From Within

Precision hormone care

Feel like yourself again.

  • For low energy, poor sleep, low drive or mood swings
  • Dosed from your labs, not a one-size script
  • Rechecked every 3 months and adjusted as your body responds
Led by Christina Warner, APN-C, rated 5.0 on Healthgrades.

Not sure?

Not sure where to start? Start with a call.

  • A clinician listens to your goals and history
  • Bring recent labs and we review them free
  • Leave with a clear next step, whether or not you continue
“I honestly didn’t know what to expect or which direction to go in based on how I was feeling.”Jay P., Google review

How it works

Start with a free call. Then we stay with you.

1

Your free 20-minute call

  • A clinician listens to your goals, symptoms and history
  • Bring labs from the last 6 months and we review them free
  • You get an honest answer on whether we can help. No pressure.
2

Testing, mostly at home

  • Your clinician picks only the tests your goal needs
  • Most are done from home, or at a lab near you
  • Every result is reviewed with you, marker by marker
3

Your plan, and people to see it through

  • A written plan, in priority order
  • A clinician and a coach who adjust it as you go
  • Retests every 3 months for members, so you see what is changing

See exactly how it works →

The HFW difference

Your physical asks if you are sick. We ask how well you are aging.

A normal checkup can miss what is behind low energy, poor sleep or stubborn weight. Here is what changes when your care runs on data.

Typical annual physicalHFW
The question it answersAre you sick?How well are you aging, and what is holding you back?
Your ageThe one on your birthdayYour biological age, measured and tracked
LabsA basic panel once a year, judged by “normal” ranges110 markers judged by what is optimal for you, retested every 3 months for members
Deeper testingOnly once something is already wrongGut, hormone and nutrient testing when your symptoms call for it
Time with youAbout 15 minutesA 60 to 90 minute results review
The planTreat symptoms when they show upA written plan built on your data, in priority order
Follow-throughOn your own until next yearA coach and a clinician every month
How you know it is workingYou find out next yearYour labs, biological age, energy and sleep, tracked over time
  • The question it answersHow well are you aging, and what is holding you back?Are you sick?
  • Your ageYour biological age, measured and trackedThe one on your birthday
  • Labs110 markers judged by what is optimal for you, retested every 3 months for membersA basic panel once a year, judged by “normal” ranges
  • Deeper testingGut, hormone and nutrient testing when your symptoms call for itOnly once something is already wrong
  • Time with youA 60 to 90 minute results reviewAbout 15 minutes
  • The planA written plan built on your data, in priority orderTreat symptoms when they show up
  • Follow-throughA coach and a clinician every monthOn your own until next year
  • How you know it is workingYour labs, biological age, energy and sleep, tracked over timeYou find out next year

Tap “Annual physical” to compare.

See where you stand: book a free callFree 20-minute call. No commitment.

What patients say

5.0 stars on Google. 1,000+ patients.

5.0

Google rating

Claudia Morante

Google review

I found out a few of my systems were aging faster than they should be, uncovered some gut issues I’m now working on… The 90-minute review with the doctor was honestly probably the best experience I’ve ever had with a doctor.

Prazz

Google review

Heal From Within builds protocols, including peptides, supplements, diet and lifestyle factors which are based on testing… Would highly recommend to anyone looking to use peptides the right way, or age healthier in general!

Joe Baierwalter

Google review

HFW was able to help me with back pain and stiffness that had been chronic for years… They were very professional and gave me a targeted approach incorporating peptides.

Read more patient reviews →

Excerpts from Google reviews. Individual results vary.

Book a free 20-minute call

Free · 20 minutes · Bring recent labs for a free review

Your care team

The same people, every step.

Clinician-led care with physician medical direction. You generally meet with the same clinician each time.

Christina Warner, APN-C

Christina Warner, APN-C

Advanced Care Clinician

Dr. Eric Landi

Dr. Eric Landi

Co-founder · Advanced Care Clinician

Anthony Reyes

Anthony Reyes

Health and Accountability Coach

Dr. Saul Maslavi, MD

Dr. Saul Maslavi, MD

Medical Director · Board-Certified Family Medicine Physician

A dedicated Patient Success coordinator who keeps everything moving, from your first call to every retest.

Meet the team →

FAQ

Quick answers.

What happens on the free call?

You talk through your goals and history with an advanced care clinician and leave with a clear next step, whether or not you continue with us. Bring recent labs and your clinician will review them for free. When your labs support it, some therapies, like peptides, can be prescribed on that call.

Where do I start if I'm not sure what I need?

Book the free call. Your clinician recommends a starting point based on your goals. For many people that is the 30-Day Health Deep Dive: your biological age, 180 markers across 11 organs and systems, a results review and a priority plan.

Can I use bloodwork I already have?

If you've had bloodwork in the last 6 months, bring it to your free call. For GLP, Recovery and individual peptide protocols, your clinician can often start from it and order only what's missing. Any additional testing is billed by the lab, and insurance may cover it.

How much does it cost?

Programs start at $199 a month, and every price is on our Programs page. Your clinician reviews pricing with you before you commit to anything.

Do you take insurance?

We're self-pay and don't bill insurance, which keeps care decisions between you and your clinician. HSA and FSA cards are accepted.

Do I have to come in?

No. Most patients are seen by secure video, because decisions come from your data. Testing is done at home or at a lab near you.

Who is HFW for?

People who want to feel and perform better now and stay independent longer, whether something feels off or you already feel good and want to stay ahead.

The short answer

What is HFW Longevity?

A clinician-led longevity and functional medicine clinic for patients in New York, New Jersey and online. We test first, then build a plan that can include nutrition, supplements, peptides or hormones, and retest to track what changes. Every plan starts with a free 20-minute call.

Reviewed by Dr. Eric Landi, Co-founder, Advanced Care Clinician · Updated Nov 11, 2026

Ready when you are

Your first step is a free 20-minute call.

Talk with an advanced care clinician and leave with a clear next step, whether or not you continue with us.

No cost, no obligation. You'll be taken to our scheduling page to pick a time.

Free · 20 minutes · Bring recent labs for a free review · HSA/FSA accepted

We accept 10 new Healthspan members each month.

Self-pay. HSA and FSA cards accepted. Prescription therapies are provided only if your HFW clinician decides they are right for you after an evaluation. Individual results vary.

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