Summary

Dr. Jill Feffer is a board-certified endocrinologist who specializes in diabetes and metabolism, as well as internal medicine. She earned her medical degree from New York University School of Medicine and has been practicing for 13 years. Dr. Feffer speaks English and brings extensive experience in helping patients manage complex hormonal and metabolic conditions.

Dr. Feffer practices at Mount Sinai Morningside and Elmhurst Hospital Center, with locations in New York and Elmhurst, NY. She focuses on treating patients with type 2 diabetes and helps manage high blood sugar emergencies. Her expertise includes performing essential diagnostic tests like complete blood counts and thyroid function panels to monitor her patients' health. Patients consistently rate Dr. Feffer highly, giving her an average rating of 5.0 for her compassionate care and clinical expertise.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 13 years of experience
  • speaks English
  • New York University School Of Medicine
  • 1 written review
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 3 office locations
  • Female

Patients’ Perspective

  • Had a good bedside manner
  • Provided follow-up after the visit

Office Locations

Dr. Jill Brett Feffer has 3 locations

Elmhurst Hospital Center

7901 BroadwayElmhurst, NY 11373

Mount Sinai Morningside

1111 Amsterdam AveNew York, NY 10025

Optum Medical

317 E 34th StNew York, NY 10016
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

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Dr. Jill Brett Feffer, MD
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Dr. Jill Brett Feffer, MDDr. Patricia M. Vuguin, MDMs. Elizabeth Gunckle, CPNPDr. Adriana P. Kuker, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
13 Years of Experience 38 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Spanish Speaks English Speaks Spanish
Elmhurst , NYBronx , NYNew York , NYEastchester , NY
Med School: New York University School Of Medicine Med School: Universidad De Buenos Aires Med School: New York University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Jill Brett Feffer

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Jill Brett Feffer has the following 2 specialties

Specialty Expertise

Dr. Jill Brett Feffer has the following 2 areas of expertise

  • Endocrinology Diabetes & Metabolism
  • Internal Medicine

Certifications, License, & Education

13 Years Experience

Dr. Jill Brett Feffer holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2026.

Education & Training

Medical School

Graduated from New York University School Of Medicine in 2013.

NPI Number

Dr. Feffer's NPI number is 1588906267.

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Frequently Asked Questions

Does Dr. Jill Feffer accept virtual/telehealth appointments?
Dr. Jill Feffer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Jill Feffer accept my insurance?
You can see the insurance plans that Dr. Jill Feffer accepts on their Vitals profile.
Which hospitals is Dr. Jill Feffer affiliated with?
Dr. Jill Feffer is affiliated with Mount Sinai Morningside and Elmhurst Hospital Center.
Where is Dr. Jill Feffer's office located?
Dr. Jill Feffer's office is located at 7901 Broadway, Elmhurst, NY, 11373.
Is Dr. Jill Feffer accepting new patients?
Dr. Jill Feffer is accepting new patients on Vitals. View Dr. Jill Feffer's profile on Vitals to make an appointment.

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