Dr. Caroline Messer, MD

Endocrinology, Diabetes & Metabolism  |  
Female  |  
Age 39
Insurances AcceptedSave
Dr. Caroline Messer, MD
Dr. Caroline Messer, MD is an endocrinology, diabetes & metabolism doctor who practices in New York, NY. She is 39 years old and has been practicing for 12 years. Dr. Messer is affiliated with Mount Sinai Hospital and Lenox Hill Hospital.

Fifth Avenue Endocrinology

1080 5th Ave # 1A

New York, NY 10128

Contact Information
Dr. Caroline Messer, MD

Dr. Caroline Messer, MD

Accepted insurance

  • Aetna
  • Amalgamated Clothing & Textile Workers Union
  • Blue Cross Blue Shield
  • Cigna
  • Commercial Insurance Company
  • Connecticare
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • Fidelis Care
  • First Health (Coventry Health Care)
  • Humana
  • Locals (any local)
  • MagnaCare
  • MedHealthInsurance
  • 5 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Messer

Dr. Messer's Experience

Dr. Messer's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Endocrinology, Diabetes & Metabolism
  • Board certified in Diabetes, Metabolism & Endocrinology and Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Endocrinology, Diabetes & Metabolism

Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Medical Specialties*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Abnormal Thyroid
  • Adrenal Gland Diseases
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Bone Disorders
  • Calcium Metabolism Disorders
  • Cancer
  • Craniopharyngioma
  • Diabetes Type 1
  • Diabetes Type 2
  • Endocrine Disorders
  • Goiter
  • Graves' Disease
  • Hypercalcemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Kidney Disease
  • Lipid Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Parathyroid (Gland) Disease
  • Parathyroid (Gland) Tumor: Other than Malignant
  • Polycystic Ovarian Syndrome
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Testosterone Deficiency
  • Thyroid Cancer
  • Thyroid Disease
  • Vitamin D Deficiency


Read More


  • Diabetes Counseling
  • Fine Needle Aspiration of Thyroid Nodules
  • Ultrasound, Thyroid

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Mount Sinai School Of Medicine
    Medical School | Graduated 2005
  • Mount Sinai Hospital
    Internship Hospital | Completed
  • Mount Sinai Hospital
    Residency Hospital | Completed
  • Mount Sinai Hospital
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Messer has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Messer does not have any memberships or affiliations listed. If you are Dr. Messer and would like to add memberships or affiliations, please update your profile.

Dr. Messer's Reviews

Likelihood of recommending Dr. Messer to family and friends
based on 87 total reviews (8 with comments)
Dr. Messer's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (8)
New York, NY |
I was diagnosed with type 1 diabetes (LADA) and she rushed to put my on insulin when there was little urgency. She had my dosages way too high. Very self centered doctor and cares more about covering herself than the patient. Not sure how she's going to make any money now that she doesn't take insurance. Stay away...dangerous!!!
in Bronx, NY |
I was referred to Dr. Messer by my primary care physician. She was great, friendly, attentive, just excellent! I'm sorry that she will no longer be accepting private insurance. The downside was the wait of 3 months for an appointment and the office staff!
Brooklyn, NY |
Dr Messer is the most compassionate, competant endocrinologist doctor. She and Brittany who runs the front office are an incredible team. This is a wonderful place for endocrinology. Sorry they no longer take any health insurance and aren't apart of Lenox Hill hospital. A big loss for patients...
in New York, NY |
Dr Messer could not diagnose or treat me properly. She prescribed medicine for Type II diabetes while I am an adult I. She made me sicker. . She also brought a Duke college student into my examination. She did not say the student was not a medical student. I felt extremely embarrassed speaking in front of a college student and unsure of the confidentiality. This woman is self-centered and dangerous. She no longer accepts insurance and I wonder why.
in New York, NY |
Awful beside manner.
in New York, NY |
I saw Dr Messer today for the first time. I was SUPER IMPRESSED! She was VERY thorough, listened and explained everything. She even showed me pictures explaining what was going on in my vody. For a change I didn't feel rushed. Towards the end of my appointment she asked me if I understood everything that was mentioned. Wished I would have seen her sooner. Soooo happy I went there for a second opinion. She picked up on things that my prevoius doctor never did. She is officially my new Dr.
in Bronx, NY |
Dr. Messer is a great doctor. She is friendly, professional and listens well to address my concerns.
in New York, NY |
Dr Messer is only interested in conducting tests and then referring the patient to another doctor. She has no interest in the patient's overall health and well-being. Her delivery of test results is nothing short of brutal.
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Now Accepting New Patients
Dr. Messer accepts 19 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Amalgamated Clothing & Textile Workers Union
    Amalgamated Clothing & Textile Workers Union WC
  • Blue Cross Blue Shield
    Blue Card PPO
  • Cigna
    Cigna HMO
    Cigna PPO
    Great West Healthcare-Cigna PPO
    Open Access
  • Commercial Insurance Company
  • Connecticare
    Connecticare HMO
  • EmblemHealth
    Emblem Health
    Health Insurance Plan of Greater New York (HIP) PPO
  • Empire Blue Cross Blue Shield
    Empire Blue Cross Blue Shield HMO
  • Fidelis Care
    Fidelis Care HMO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Humana
    Choice Care PPO
  • Locals (any local)
  • MagnaCare
    MagnaCare PPO
  • MedHealthInsurance
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • MVP Health Care
    MVP Health Care PPO
  • Oxford Health Plans
    Freedom Plan
  • POMCO Group
  • UnitedHealthCare
    Choice Plus POS
    Navigate HMO
    Navigate POS
    Options PPO
    Oxford Liberty
    United Healthcare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Messer has admitting privileges

Lenox Hill Hospital
100 E 77th St
New York, NY 10075
View Hospital Profile
Mount Sinai Hospital
1 Gustave L Levy Pl
New York, NY 10029
View Hospital Profile