Addiction Specialist London — Private, Confidential, Harley Street
Philippe Jacquet is an addiction specialist with over 25 years of clinical practice at Harley Street W1. He trained at the Hazelden Foundation — the international reference point in addiction treatment — and brings specialist expertise in alcohol dependency, cocaine addiction, prescription medication, gambling, sex addiction and behavioural dependencies. His clinical work in this area extends beyond private practice: for over five years he has supervised the clinical teams at two of the UK’s most respected addiction and psychiatric institutions.
Supervision at PROMIS Recovery Centre and Cardinal Clinic
PROMIS Recovery Centre — with residential units in South Kensington, London and the Kent countryside — is one of the UK’s oldest and most established private addiction treatment facilities, founded in 1986 and recognised for nearly four decades of specialist work in addiction and co-occurring mental health conditions.
Cardinal Clinic is a private psychiatric hospital in Windsor, Berkshire, rated Outstanding for care by the Care Quality Commission and operating for over 40 years as one of England’s leading independent psychiatric institutions.
For over five years, Philippe Jacquet has supervised the clinical teams at both institutions — providing professional oversight, case consultation and clinical direction to specialist addiction and psychiatric teams. This is a level of institutional authority that very few private addiction practitioners hold, and it reflects both the depth of clinical experience this practice brings to addiction work and the confidence of senior institutional teams in that judgment.
Hazelden Foundation Training
The Hazelden Foundation — now Hazelden Betty Ford — is internationally recognised as the gold standard in addiction treatment and research. Philippe Jacquet’s training there reflects a commitment to the most rigorous evidence base in addiction medicine. It is the foundation upon which 25 years of specialist private addiction practice has been built.
What This Practice Works With
Alcohol dependency — including high-functioning presentations where professional life remains intact but the dependency has become privately unmanageable. This practice understands the particular clinical picture of the functional drinker and works with it without the institutional exposure that rehab admission carries.
Cocaine and stimulant addiction — including professionals in high-pressure environments where use has escalated beyond what can be managed privately. Discretion is absolute.
Prescription medication dependency — benzodiazepines, opioids, sleep medication. A growing area of clinical need that is frequently unacknowledged and poorly understood by generalist practitioners.
Gambling and behavioural addictions — including the compulsive patterns that increasingly accompany online access to gambling, trading and other stimulus-driven behaviours.
Sex addiction — a specialist area where shame and secrecy often prevent help-seeking. This practice offers a clinical space where the presenting problem can be addressed without judgment.
Confidential Addiction Treatment — No Institutional Exposure
For many people — particularly those in professional life or senior positions — the barrier to seeking addiction treatment is not the desire for help but the exposure that institutional treatment carries. Checking into a residential clinic requires absence from work, involvement of others, and the risk of discovery.
This practice offers an alternative: senior specialist clinical work conducted in complete confidentiality, at Harley Street or by secure video, in English or French. No institutional record. No group setting. No requirement to disclose to employers or insurers.
Specialist addiction treatment in London — Harley Street standard, completely confidential. Former clinical supervisor to PROMIS Recovery Centre and Cardinal Clinic.
Book a Confidential ConsultationLived Experience — Addiction and Eating Disorders
Philippe Jacquet brings to this work something that no qualification alone can provide: personal lived experience of both addiction and eating disorders. He is in long-term recovery. That experience — alongside Hazelden Foundation training, over 25 years of specialist clinical practice, and clinical supervision roles at PROMIS Recovery Centre and Cardinal Clinic — gives this work a depth of understanding that is genuinely rare in a practitioner at this level.
The Hazelden model has always recognised that lived experience in recovery is not incidental to clinical expertise — it is constitutive of it. A practitioner who has faced these difficulties personally brings a quality of understanding that goes beyond clinical knowledge: they know what is actually happening inside the experience, what the pull of the substance or behaviour feels like, what the moment of genuine recognition looks like, and what makes the difference between treatment that touches the real problem and treatment that does not.
This is not offered as biography. It is offered as the clinical context that explains why the work in this practice reaches where it does.
Recovery Insights — From the Blog
- Out of Rehab: What the First Year Clean Actually Requires
- Relapse Begins Long Before You Pick Up: The RELAPSE Acronym
- Relapse Is Not a Moral Failure: It Is a Characteristic of the Illness
- Eating Disorder Recovery: Three Meals a Day, HALT, and the Life In Between
Frequently Asked Questions
Do I need to go to rehab to get specialist addiction treatment?
If you have a headache, you do not go straight to a brain surgeon. The same logic applies to addiction. Before committing to residential rehab — which is expensive, takes you out of your life for weeks, and is not the right tool for everyone — it is worth seeing an addiction specialist first. Some people do significantly better with intensive one-to-one specialist work than they ever did in rehab. Rehab is a powerful and sometimes essential tool. But you do not use the same tool for every job.
Does relapse mean recovery has failed?
Relapse is a characteristic of addiction — not a moral failure and not evidence that recovery cannot work. If someone drinks once and stops easily, that is not addiction. Long-term recovery is often paved with a small number of relapses along the way. What matters is what you do with it. A good addiction specialist helps you learn from a relapse rather than be destroyed by it — to extract the clinical information it contains and transform it into inner wisdom for the journey ahead.