The Natural Doctor

London · Marylebone · updated 5 July 2026

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Prices checked once on record, 5 July 2026.

Functional MedicineHormone OptimizationLongevity Clinics
Treatments
25
Categories
3
From
£79
With pricing
18
Book onlineSend enquiryView all treatments
The Natural Doctor is a Marylebone integrated and functional medicine clinic founded in 1998 by Dr Nyjon Eccles (BSc, MBBS, MRCP, PhD), where bioidentical hormone replacement therapy consultations start at £335 and radiation-free Thermocheck breast thermography scans start at £285.

Key facts

Address
8 Upper Wimpole Street, Marylebone, London W1G 6LH
Founded
1998 (registered entity incorporated 2010, Companies House 07360121)
Founder
Dr Nyjon Eccles, BSc, MBBS, MRCP, PhD in Pharmacology
BHRT initial consultation from
£335 (Essential tier); £415 (Comprehensive tier)
Thermocheck breast thermography from
£285 (scan and report); £385 express 48-hour report
Comprehensive blood panel
68 to 70 markers, £655
Add-on tests
Smart Vascular Dx £615, Heart Rate Variability £120, EpiAge epigenetic age £195
Opening hours
Monday to Friday, 9:30 to 17:00

The Natural Doctor operates at 8 Upper Wimpole Street in Marylebone, a short walk from Baker Street, Regent's Park and Bond Street stations. Founded in 1998 by Dr Nyjon Eccles (BSc, MBBS, MRCP, and a PhD in Pharmacology from the University of London), the clinic is registered as The Natural Doctor Limited (Companies House 07360121). Its focus is integrated and functional medicine, with bioidentical hormone replacement therapy (BHRT), natural menopause treatment and men's recharge programmes forming the core of its work. The team also includes GP and women's health specialist Dr Sarah Jenkins (MBBCh, FRSM, ESAG, BCAM) and Dr Vishal Aggarwal (MD, MSc).

Pricing is consultation-led and tiered. Essential menopause and recharge programmes begin with a £335 initial consultation and a 5-marker blood panel at £215, while the comprehensive BHRT and functional medicine tier uses a 68 to 70 marker panel at £655 with a £415 initial consultation. Bespoke medication is quoted separately, from roughly £80 to £100 per month. Functional medicine and fertility consultations with Dr Eccles are £415 via Zoom, with customised testing from £300 to £900.

Beyond hormones, the clinic offers Thermocheck breast thermography, a non-contact infrared scan from £285 (or £385 for a 48-hour express report, with a 20% discount for ages 16 to 30), plus cardiac and longevity add-ons including the Smart Vascular Dx blood test (£615), Heart Rate Variability testing (£120) and the EpiAge epigenetic age test (£195). The clinic is open Monday to Friday, 9:30 to 17:00, and bookings are made online through its clinic portal.

25 treatments across 4 categories in the menu and pricing section below.

Compiled from published research and each venue's own published information. Information only, not medical advice.

Information compiled from the clinic's website, last checked 5 July 2026.

Treatments & pricing

Sourced from the clinic's published menu where available.

Team

4 practitioners listed where available.

Dr Sarah Jenkins

GP and Women's Health Specialist; menopause and cosmetic doctor · MBBCh · FRSM · ESAG · BCAM

Women's health · Bioidentical hormone replacement therapy (BHRT) · Menopause and perimenopause support · Intimate and vulval health · Breast thermography · Libido support

Described as a multi-award-winning GP and Women's Health Specialist with over a decade of experience in the NHS and private medicine, including rotations in obstetrics and gynaecology. Trained in BHRT and Thermocheck Breast Thermography under Dr Nyjon Eccles. Her work has been featured in Hello! Magazine, This Morning, and Olivia Attwood's The Price of Perfection. Referred to by patients as 'The Vulva Queen'.

Dr Vishal Aggarwal

Consultant Physician and Pharmaceutical Innovation Specialist · MD · MSc · GMC-registered

Clinical practice with pharmaceutical innovation · Bioidentical hormone replacement therapy (BHRT) · Thermocheck Breast Thermography · Functional medicine

GMC-registered consultant physician with a background in pharmaceutical medicine and innovative research. Holds extensive training in BHRT completed under the mentorship of Dr Nyjon Eccles and is fully trained in Thermocheck Breast Thermography.

Dr Michael Kucera

Collaborating specialist for cancer, autism/PDD and mitochondrial support clinics · Mitochondrial medicine

Described on the site as a renowned expert, and as a renowned expert in mitochondrial medicine, who works alongside Dr Nyjon Eccles in the cancer patient support, autism/PDD support and mitochondrial support clinics.

Administration (1)expand

Dr Nyjon Eccles

Founder and lead clinician · BSc · MBBS · MRCP · PhD (Pharmacology, London)

Integrated medicine · Prevention-based care · Breast health · Hormone health · Pharmacology · Functional medicine

Founder and lead clinician of The Natural Doctor, described on the site as one of the most respected Integrated Medicine physicians in the UK. The site states he has featured in Who's Who in the World annually since 2010 and was recognised in Who's Who in Medicine & Healthcare between 2011-2017 and 2019. Described as practising from a clinic in Harley Street, Central London.

Facility

Conditions treated

Health areas The Natural Doctor states it works with. General information, not a treatment claim.

Hormone & metabolic

MenopausePerimenopauseAndropause (male hormone decline)Hormonal imbalanceThyroid function concerns

General

Low libidoInfertility / fertility optimisationHair thinning and receding hair
Show all 17 conditions

Hormone & metabolic

MenopausePerimenopauseAndropause (male hormone decline)Hormonal imbalanceThyroid function concerns

General

Low libidoInfertility / fertility optimisationHair thinning and receding hairSkin ageing / facial ageingBreast health concernsCardiovascular / heart disease riskAdrenal stressSleep and melatonin imbalanceCancer (supportive consultation only)Autism and pervasive developmental disorders (supportive consultation)Mitochondrial conditions (supportive consultation)COVID / long COVID / post vaccine syndrome (supportive consultation)

Equipment

  • ThermocheckThermal imagingInfrared camera used to scan the breasts and produce a thermogram; radiation-free.
  • SmartVascular DxCardiovascular blood testSerum blood test using seven protein biomarkers.
  • PULSCardiovascular blood testHeart Health Test with expanded lipid profile.
  • EpiAgeEpigenetic testSaliva test using next-generation sequencing to estimate epigenetic age.
  • Autonomic function testHeart Rate Variability (HRV) testing via sensors on arms and ankles; described as a special ECG measuring HRV over 5 minutes.

From @the.natural.doctor on Instagram

At The Natural Doctor, we believe that healthcare should be personalised, preventative, and focused on helping you live

At The Natural Doctor, we believe that healthcare should be personalised, preventative, and focused on helping you live well for longer. Nothing reflects that better than the experiences of our patients. From feeling truly listened to, to receiving expert guidance and personalised treatment pl

My bespoke made-to-measure bio-identical hormone medication arrived!! Made just for me after my blood tests and consult

My bespoke made-to-measure bio-identical hormone medication arrived!! Made just for me after my blood tests and consultation with Dr Eccles, a trusted expert in natural and integrative medicine. I found the @the.natural.doctor just over a year ago and have been on a midlife longevity journey with t

Ageing is often explained through 12 interconnected biological hallmarks, including DNA damage, chronic inflammation, ce

Ageing is often explained through 12 interconnected biological hallmarks, including DNA damage, chronic inflammation, cellular senescence and stem cell exhaustion. But what if one organelle plays a role in nearly all of them? In his latest article, Dr Nyjon Eccles (BSc, MBBS, MRCP, PhD) explores t

Dr Nyjon Eccles (BSc, MBBS, MRCP, PhD) explains how Bioidentical Hormone Replacement Therapy (BHRT) can support healthy

Dr Nyjon Eccles (BSc, MBBS, MRCP, PhD) explains how Bioidentical Hormone Replacement Therapy (BHRT) can support healthy ageing by restoring hormones to more optimal levels using compounds that are molecularly identical to those naturally produced by the body. 🔹 Supports energy, vitality, sleep, moo

When it comes to breast health, awareness matters. Thermocheck® Breast Thermography offers a different perspective by u

When it comes to breast health, awareness matters. Thermocheck® Breast Thermography offers a different perspective by using thermal imaging to assess patterns of heat and physiological activity within the breast tissue. As a non-invasive, contact-free procedure, it can be used alongside other appro

What if health is less about isolated symptoms and more about communication? In this conversation, Dr Nyjon Eccles BS

What if health is less about isolated symptoms and more about communication? In this conversation, Dr Nyjon Eccles BSc MBBS MRCP PhD is joined by Dr Michael Kucera, an internationally renowned medical doctor specialising in mitochondrial and anti-ageing medicine and co-creator of the Kardivar Hea

Follow @the.natural.doctor on Instagram

Practical information

Hours
Monday to Friday 9.30 am to 5 pm
Getting there
Marylebone · Baker Street, Regent's Park, and Bond Street tube stations are within walking distance
Website
thenaturaldoctor.org
Languages
English
Certifications
Registered as THE NATURAL DOCTOR LIMITED, Companies House 07360121 (SIC 86220, specialist medical practice activities)
Consultation
Required before first session

Location

8 Upper Wimpole Street, Marylebone, London W1G 6LH

8 Upper Wimpole Street, Marylebone, London W1G 6LH

Open in Google Maps
About the organisation(expand)
Legal entity
THE NATURAL DOCTOR LIMITED
Companies House
07360121

Related businesses

  • NATURAL DOCTOR ONLINE LIMITED (Companies House 09875910, registered at the same address)

Awards

  • Dr Nyjon Eccles: featured in Who's Who in the World annually since 2010 (per clinic website)
  • Dr Nyjon Eccles: recognised in Who's Who in Medicine & Healthcare between 2011-2017 and 2019 (per clinic website)
  • Dr Sarah Jenkins: described as multi-award-winning (specific awards not named on site)

Social profiles

In the press

  • Featured coverage · The Telegraph
  • Featured coverage · Daily Mail
  • Featured coverage · Cosmopolitan
  • Featured coverage · Elle
  • Dr Sarah Jenkins on women's intimate health and menopause · Hello! Magazine
  • Dr Sarah Jenkins appearance · This Morning (ITV)

Frequently asked

Where is The Natural Doctor and how do I get there?
The clinic is at 8 Upper Wimpole Street, Marylebone, London W1G 6LH, within walking distance of Baker Street, Regent's Park and Bond Street tube stations. It is open Monday to Friday, 9:30 to 17:00.
How much does BHRT cost at The Natural Doctor?
Bioidentical hormone replacement therapy is consultation-led. The Essential menopause or recharge programme starts with a £335 initial consultation plus a 5-marker blood panel at £215. The Comprehensive BHRT and functional medicine tier uses a 68 to 70 marker panel at £655 with a £415 initial consultation. Bespoke medication is quoted separately, from about £80 to £100 per month.
How much is Thermocheck breast thermography?
A Thermocheck scan and report starts at £285, and an express scan with a guaranteed 48-hour report is £385. A 20% discount applies for ages 16 to 30. Thermocheck is a non-contact, radiation-free infrared scan and appointments last up to 30 minutes.
Do I need a consultation before treatment?
Yes. Treatments such as BHRT, functional medicine, fertility and menopause care are delivered through an initial consultation that includes test review, a treatment plan and, where relevant, a prescription. Many consultations can be conducted via Zoom.
Who runs the clinic and what are their credentials?
The Natural Doctor was founded by Dr Nyjon Eccles (BSc, MBBS, MRCP, PhD in Pharmacology from the University of London), who is the registered company director. The team also includes GP and women's health specialist Dr Sarah Jenkins (MBBCh, FRSM, ESAG, BCAM) and Dr Vishal Aggarwal (MD, MSc).
What longevity and preventive tests are available?
Alongside hormone care, the clinic offers add-on testing including the Smart Vascular Dx cardiac blood test (£615), Heart Rate Variability testing (£120), the EpiAge epigenetic age test (£195) and the PULS Heart Health test with expanded lipid profile (£395).

Send an enquiry

Your request goes to the Más Longevity directory team for review and routing to The Natural Doctor. If you hear nothing within two working days, we follow up on your behalf.

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