Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Messer, Endocrinologist in Mount Kisco, NY?
Dr. Caroline Messer, MD is an Endocrinologist, who primarily practices in Mount Kisco, NY with 1 additional practice location. She is board certified. Dr. Messer graduated from Mount Sinai School of Medicine and completed her residency at Mount Sinai Hospital. She is a member of the North Shore-LIJ Medical Group, AACE, and Endocrine Society. Dr. Messer is fluent in English, French, and Portuguese, and is currently seeing new patients. Dr. Messer’s practice accepts Cigna, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Messer’s office at (914) 241-1050.
What are Areas of Expertise for Dr. Messer?
Dr. Caroline Messer, MD is a highly-rated, board-certified Endocrinologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Messer empowers patients to confidently navigate their health journey, specializing in Obesity, or comprehensive wellness support. Serving the Mount Kisco/NY community, Dr. Messer is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Messer go to medical school and complete their residency?
Fellowship: Mount Sinai Hospital
Residency: Mount Sinai Hospital
Medical School: Mount Sinai School of Medicine
Is Dr. Messer board certified as an Endocrinologist?
Yes, Dr. Caroline Messer, MD is board certified by the American Board of Internal Medicine , American Board of Internal Medicine since 2010
What languages does Dr. Messer speak?
Dr. Messer and their clinical team can communicate with patients in the following languages:
English
French
Portuguese
What conditions does Dr. Messer treat?
As an Endocrinologist, Dr. Messer diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Messer. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Hypothyroidism
- Congenital hypothyroidism
- Hypothyroidism (Underactive Thyroid)
- Underactive Thyroid
- Low Thyroid Function
ICD-10 Codes:
- E039: Hypothyroidism, unspecified
Also known as:
- Age-Related Osteoporosis
- Fractures
- Osteoporosis
- Senile Osteoporosis
- Primary Osteoporosis
- Bone Thinning from Aging
ICD-10 Codes:
- M810: Age-related osteoporosis without current pathological fracture
Also known as:
- Unexplained Weight Gain
- Sudden weight gain
- Rapid weight increase
- Abnormal increase in weight
ICD-10 Codes:
- R635: Abnormal weight gain
Also known as:
- Hashimoto's Disease
- Thyroid Disease
- Hashimoto's disease
- Autoimmune thyroiditis', 'Chronic lymphocytic thyroiditis', 'Hashimoto's thyroiditis
ICD-10 Codes:
- E063: Autoimmune thyroiditis
Also known as:
- Polycystic Ovary Syndrome (PCOS)
- Polycystic Ovary Syndrome
- PCOS
- Stein-Leventhal Syndrome
- Polycystic Ovaries
ICD-10 Codes:
- E282: Polycystic ovarian syndrome
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Single Nontoxic Thyroid Nodule
- Thyroid Disease
- Benign Thyroid Nodule
- Solitary Thyroid Nodule
ICD-10 Codes:
- E041: Nontoxic single thyroid nodule
Also known as:
- Menopause
- Climacteric
- The Change of Life
- Postmenopause
ICD-10 Codes:
- N951: Menopausal and female climacteric states
Also known as:
- Prediabetes
- Insulin Resistance & Prediabetes
- Borderline diabetes
- Insulin resistance
- High blood sugar (not yet diabetes)
ICD-10 Codes:
- R7303: Prediabetes
Also known as:
- Type 1 Diabetes
- Diabetes Type 1
- Type 1 diabetes
- Diabetes Tests & Diagnosis
- Juvenile Diabetes
- Insulin-Dependent Diabetes
- T1D
ICD-10 Codes:
- E109: Type 1 diabetes mellitus without complications
What procedures does Dr. Messer perform?
As an Endocrinologist, Dr. Messer performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Messer. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Ultrasound-Guided Fine Needle Biopsy
- Biopsy
- Ultrasound
- FNA Biopsy with Ultrasound
- Image-Guided Biopsy
- Fine Needle Aspiration
- First Lesion Biopsy
CPT Codes:
- 10005: Fine needle aspiration biopsy, including ultrasound guidance; first lesion
Does Dr. Messer accept my insurance?
Dr. Messer accepts most major insurance plans. Important: Please call our office at (914) 241-1050 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Messer accept in Mount Kisco, NY?
Dr. Messer in Mount Kisco, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene
Cigna
Community Health Network
Corporate Services
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Spectrum
UnitedHealthcare
View All Insurances
Where is Dr. Messer's office located?
Dr. Caroline Messer's Primary Practice
90 S Bedford Rd
Mount Kisco, NY 10549
(914) 241-1050
Recognitions
Memberships & Associations
North Shore-LIJ Medical Group
Member
AACE
Member
Endocrine Society
Member
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - All Time
Among the most nominated for the Castle Connolly Top Doctor recognition across all time
Doctor’s Choice - 2025
Among the most nominated for the Castle Connolly Top Doctor recognition in 2025
Doctor’s Choice - Last 5 Years
Among the most nominated for the Castle Connolly Top Doctor recognition in the last 5 years
What is Dr. Messer's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Messer's National Provider Identifier (NPI) number is 1386855047.
What common questions do patients ask about Dr. Messer?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Messer
What is Dr. Caroline Messer's specialty?
Dr. Messer is a Endocrinologist near Mount Kisco, NY. An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues. Contact Dr. Messer to book an appointment today.
Is this Dr. Caroline Messer affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Messer is affiliated with Lenox Hill Hospital, The Mount Sinai Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Endocrinologist?
Explore Endocrinologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Caroline Messer accepting new patients in Mount Kisco, NY?
Yes, Dr. Caroline Messer is accepting new patients at this time.
Does Dr. Caroline Messer offer online booking?
Please contact Dr. Messer's office at (914) 241-1050 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Caroline Messer?
Please contact Dr. Messer's office at (914) 241-1050 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Caroline Messer have?
Dr. Caroline Messer is certified by the American Board of Internal Medicine.
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