About Us
Well by Messer is the premier multispecialty medical practice delivering comprehensive concierge-level care.
Under the leadership of Manhattan-based endocrinologist, Dr. Caroline K. Messer, a team of top-rated endocrinologists (adult and pediatric), internists, urologists, gynecologists, psychologists, plastic surgeons, and registered dietitians are dedicated to providing high-touch personalized medical care.
We are a high-end, multispecialty medical practice dedicated to helping patients achieve lasting health, confidence, and vitality. Originally founded as a leader in medical weight loss, our practice has evolved into a comprehensive destination for preventive care, women’s health, and metabolic optimization, offering coordinated care across multiple specialties.
From weight management and hormone balance to gynecology, internal medicine, adult and pediatric endocrinology, plastic surgery, psychology, and nutrition, our integrated team delivers personalized treatment plans designed to support long-term wellness at every stage of life.
Weight Loss
Our origin was in medical weight loss—and it remains a core focus of our practice.
We provide advanced, physician-supervised weight loss programs rooted in metabolic science and preventive medicine. Our approach addresses the full picture: hormones, insulin resistance, nutrition, mental health, and lifestyle factors that influence sustainable weight management.
Services include:
Medical weight loss programs
Metabolic and hormonal evaluation
Endocrinology-led weight loss care
Nutrition and dietitian support
Behavioral and psychological counseling
By treating weight gain as a medical condition—not a moral failing—we help patients achieve meaningful, long-lasting results.
Women’s Health
We are a destination practice for menopause care and women’s health.
Midlife health changes can be complex, underdiagnosed, and deeply disruptive. Our team specializes in helping women navigate perimenopause, menopause, and postmenopause with evidence-based, individualized care.
Menopause-focused services include:
Hormone evaluation and optimization
Management of weight gain, fatigue, and brain fog
Bone, cardiovascular, and metabolic health
Sexual health and vaginal wellness
Mood, sleep, and mental health support
Preventive Care
Preventive care is the backbone of everything we do.
Our internal medicine and preventive care services focus on early detection, risk reduction, and proactive health management. We go beyond routine checkups to identify underlying issues before they become chronic disease.
Preventive services include:
Comprehensive annual exams
Cardiometabolic risk assessment
Hormone and thyroid evaluation
Longevity and wellness planning
Chronic disease prevention
Pediatric Endocrinology
Our multispecialty model extends to pediatric endocrinology, providing expert care for children and adolescents with complex hormonal and metabolic conditions.
Our pediatric endocrinology services focus on early diagnosis, long-term health, and family-centered care, with close coordination between specialists when needed.
Pediatric endocrinology services include:
Pediatric weight management and metabolic health
Growth disorders and growth hormone evaluation
Type 1 diabetes diagnosis and management
Thyroid and adrenal disorders
Puberty and developmental concerns
TESTIMONIALS
“Dr. Messer is amazing. Always kind, really astute and does not give up until she finds the right diagnosis and treatment.”
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“Always an A+ experience. I couldn’t be in better hands.”
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“Loved the whole experience.”
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“Clear explanations from the doctor and felt listened to. ”
Patient Reviews
