Pain is a signal. Regen.MD decodes the source before it places the biologic.

Regen.MD is built for a specific patient. The knee injected four times. The spine scheduled for fusion, where nobody asked why the disc failed. The PRP or "stem cell" shot already paid for elsewhere that did nothing.

The diagnosis is the same in all three. The procedure was aimed at the structure. Nobody tested the soil it went into.

The practice is led by Dr. Gurpreet Singh Padda, MD, MBA, MHP, with three decades of interventional practice and a 2024 competency certification in regenerative medicine; his full background is on his page. Unsure this is your clinic? Tap the directory assistant (the light in the corner of the page).

Why do injections and procedures fail?

Think of the body as soil. A joint, a tendon, a nerve: each is a plant in it. Deplete the soil, inflame it, starve it of oxygen, flood it with sugar, and the plant dies. Replace the plant as often as you like. In bad soil, it dies again.

The chemistry is specific. Tissue repair is expensive. It needs working mitochondria, controlled inflammation, protein and micronutrient substrate, and hormones that favor building over breaking down. Insulin resistance degrades all four at once. A permeable gut lining pushes inflammatory triggers into circulation, and roughly seventy percent of immune signaling starts in the gut. A nervous system stuck in fight-or-flight constricts blood flow and suppresses rest-and-repair.

Then the system makes it worse. Insurance medicine runs on throughput: seven-minute visits, billing codes that pay for procedures and not for investigation. Palliative injections are a waste of time and capital when the biological environment is ignored.

So Regen.MD runs the Padda Protocol. Measure the terrain. Identify the bottleneck. Correct it. Then, and only then, place the procedure.

What does Regen.MD treat?

Joint degeneration and replacement candidates

"Bone-on-bone" is a description, not a sentence. Many knees and shoulders carrying that label retain more functional cartilage than it implies. The tear is mechanical; the failure to repair is metabolic. Roughly one in five knee-replacement patients reports persistent pain after surgery, because the terrain, tendons, stabilizers and sensitized nervous system came along unchanged. The evaluation stages the joint honestly. Some joints genuinely are end-stage, and you are told so.

Chronic back pain and the fusion decision

A disc is living tissue with one of the poorest blood supplies in the body. Flood the body with sugar, inflammation and stress hormones and the disc dries, cracks and collapses early. A fusion does not repair anything. It takes a joint out of service and hands its load to the segments above and below, which is why adjacent segment disease has its own name. Repeated steroid injections quiet the alarm while accelerating the breakdown of the tissue they are injected into. True instability, tumor and cauda equina still call for surgery.

Neck and arm nerve pain

Disc bulges appear on the MRIs of pain-free adults every day. Operate on the picture instead of the verified generator and the pain survives the surgery. Gabapentin and its relatives sedate the alarm without repairing anything, at a cognitive cost most patients are never warned about. Progressive weakness and cord compression with myelopathy are surgical, full stop, and patients with that pattern are helped to find the right surgeon.

Metabolic inflammation and failed treatment

Systemic inflammation, insulin resistance, gut dysfunction and stalled healing, treated as a condition in their own right. Plus the case nobody advertises for: the regenerative treatment that already failed somewhere else.

Which regenerative treatments does Regen.MD offer?

Not a menu. Four pillars, sequenced by your data.

Pillar I: structural restoration

Every needle is image-guided.

• Leukocyte-rich and leukocyte-poor PRP. Leukocyte-rich where a tendon needs a controlled inflammatory push. Leukocyte-poor where a joint needs quiet, sustained signaling.
• Intraosseous (subchondral) PRP. For the joint that still hurts after a "perfect" injection. Bone-marrow lesions beneath a worn surface track with pain and progression, and a joint-space injection never reaches them. Under fluoroscopy, platelet concentrate goes through the cortex into the subchondral bone, typically paired with an intra-articular dose in the same session.
• BMAC and Lipogems. Your own marrow- and fat-derived repair cells, reserved for tissue beds whose terrain is verified ready.
• Intradiscal orthobiologics for discogenic pain confirmed by workup.
• Prolotherapy. Dextrose or hypertonic solution triggers fresh collagen to re-tension lax ligaments, so degeneration stops being mechanically inevitable.
• Infrared laser photobiomodulation to raise mitochondrial output before and after a procedure, and whole-body vibration for lymphatic drainage, bone density and dormant muscle chains.

Pillar II: neurological modulation

Sympathetic overdrive is a primary reason orthopedic procedures fail.

• Stellate ganglion block, an anesthetic reset of the sympathetic chain, for PTSD physiology, complex regional pain and sympathetically maintained pain.
• RF neurolysis, only when a diagnostic block confirms the nerve. It interrupts transmission for 12 to 24 months, a window in which the terrain is corrected.
• Vagal nerve stimulation, to move the autonomic setpoint from alarm to rest-and-repair.
• Hydrodissection, ultrasound-guided fluid that frees a trapped nerve without a scalpel.
• Cryotherapy, to lower the noise floor of a sensitized nervous system.

Pillar III: metabolic and longevity care

The Biological Baseline Program. It is the mandatory first phase for every structural patient, and it is where most failed-procedure patients discover why they failed.

• Gut restoration with SIBO yogurt and targeted probiotics.
• Hyperbaric oxygen, a regenerative protocol before orthobiologic procedures and a separate neuro-recovery protocol for PTSD and brain injury.
• High-temperature sauna for heat-shock proteins and lymphatic circulation.
• Personalized meal architecture built from your labs and your own glucose response.
• Bioidentical HRT and TRT, lab-guided.
• Sexual health: Alma Duo, P-Shot and O-Shot.
• Direct primary care, with unrestricted physician access.
• The Signal Library of peptides, selected from labs: BPC-157, TB-500 and Thymosin β-4 for repair; CJC-1295, Ipamorelin, semaglutide and tirzepatide for metabolic and growth-axis work; MOTS-c, SS-31, Epitalon and Thymosin α-1 for longevity; Dihexa, Selank and Semax for cognition; DSIP for sleep; GHK-Cu, Matrixyl and SNAP-8 for skin; PT-141 for sexual health; KPV for the gut barrier.

Peptide rules are plain. Semaglutide and tirzepatide are FDA-approved drugs and are prescribed as the medications they are. Compounded peptides are available under a pathway now under active FDA review, and availability is not approval. Research-only compounds are never prescribed. Evidence for the repair peptides is largely preclinical, and the practice says so. No labs, no peptides. Every protocol ends with a re-measure, and a protocol that moves nothing stops.

Pillar IV: precision diagnostics

Nothing above is deployed until this pillar has spoken.

• Metabolic panel: fasting insulin, HbA1c, hs-CRP, lipid fractionation with ApoB, hormone profile, and micronutrients such as vitamin D, B12 and magnesium. Insulin rises years before glucose. A normal HbA1c with a high fasting insulin is the most commonly missed early finding, and the one most tied to impaired healing.
• Coronary artery calcium score and CIMT carotid imaging, your vascular age against your calendar age.
• Stool, SIBO, FSA and DNA panels for gut permeability and immune triggers.
• Cancer, rare disease and food sensitivity screening.
• On-site radiography and review of MRI, ultrasound or CT.

Inflammatory markers and fasting insulin commonly move within eight to twelve weeks. CAC changes over years, so it serves as a baseline, not a progress marker.

Why did my PRP or stem cell injection fail?

Orthobiologics became a menu item: sold same-day, without labs, without imaging, sometimes without a physician in the room. The revision evaluation asks four questions.

1. What was injected? Formulation, concentration, leukocyte profile. PRP is not one product.
2. Where did it go? A perfect biologic in the wrong tissue plane is an expensive placebo.
3. What terrain did it land in? The variable almost nobody measured.
4. Was the diagnosis right? A flawless treatment of the wrong structure fails flawlessly.

Most failures are terrain, dosing or placement failures. All three show up on review.

What happens at the Clinical Evaluation?

This is not a free consultation. You are purchasing analysis, not an appointment slot.

The Initial Clinical Evaluation and Data Review is $400, non-refundable, and not credited toward any later procedure. It covers a physician's review of your history, imaging and metabolic data before you arrive, a 60-minute root-cause session, and a written roadmap of your terrain: the bottlenecks, the sequence and the instruments indicated.

The application asks for five things:

1. Full name and date of birth.
2. Your primary complaint: where, how long, what makes it better or worse.
3. Every prior surgery and injection, with dates and outcomes. Failed procedures are data.
4. Metabolic markers such as fasting insulin, HbA1c, hs-CRP and lipids. If you have none, the team directs the panels first.
5. Relevant MRI, ultrasound or CT reports.

Regen.MD does not accept every case. It proceeds only when it can define a clear signal and the bottleneck blocking your healing. Before booking, patients are asked to watch the free Masterclass, a 50-episode series on the biology of pain, inflammation, metabolism and repair, starting with the 10-minute Clinical Mandate. A patient who arrives understanding their biological signals is ten times easier to restore than one who arrives as a blank slate.

Who is Regen.MD not for?

The patient who wants a shot to mask a symptom. There are faster, cheaper places for that, and they are everywhere. The patient who wants a prescription without the measurement. Refuse measurement and the case is declined. Anyone who cannot commit to their appointment time is not a candidate for a terrain-based protocol.

How does Regen.MD handle insurance?

It operates outside insurance by design. The insurance model forces physicians to treat symptoms rather than patients. Regen.MD offers direct physician access and unhurried evaluations instead.

Regenerative procedures are not billable to insurance. HSA and FSA funds are generally eligible. Inside the metabolic program, consultation and standard laboratory work are frequently covered while advanced panels and imaging often are not. You are told which is which before anything is ordered, and prior authorization is not a promise of payment.

Where is Regen.MD?

4477 Woodson Rd, Suite 103, St. Louis, MO 63134, next to Lambert International Airport. Monday through Friday, 8 AM to 5 PM. Call (314) 295-3000 or text (314) 886-5902. Patients travel in from across Missouri and Illinois.

Regen.MD is one of the clinics on pain and metabolic medicine in St. Louis. For insurance-based interventional pain care, see interventional pain management in St. Louis.

Frequently asked questions

Does regenerative medicine actually work?

It works when the body it goes into is ready to heal. Leave inflammation, insulin resistance or an overactive nervous system untouched and the procedure fails and the pain returns.

Who is a good candidate?

Someone who wants to understand their own physiology, including patients scheduled for fusion or joint replacement and those whose injections or surgery did not hold.

Why is steroid injection not the answer for a worn disc?

Repeated steroid injections quiet the signal while speeding the breakdown of the tissue they are injected into. They do not rebuild a disc, a facet joint or a loose ligament, and they do nothing about the inflammation that wore the tissue down.

Why does sympathetic overdrive stop healing?

A nervous system locked in fight-or-flight constricts blood flow, raises inflammatory signaling and suppresses the rest-and-repair state in which tissue rebuilds. A stellate ganglion block reopens that window.

Can I bring my own peptide?

No. The identity, purity and dose of material obtained elsewhere cannot be verified, and prescribing around an unverified substance is not something a physician can do responsibly.

Is the Masterclass free?

Yes. It is a free 50-episode video series, and watching it before the evaluation is a clinical requirement, not a sales step.