Summary

Dr. Jonathan Fillmore treats Type 2 Diabetes Mellitus, Diabetes Type 2 in Children and Teens, and Diabetes Mellitus, and performs Heel Stick procedures. He practices Endocrinology, Diabetes & Metabolism and has 29 years of experience. He speaks English and Spanish.

Dr. Fillmore earned his medical degree from Weill Cornell Medical College and completed his residency at Yale University School of Medicine. He is affiliated with Saint Vincents Medical Center and Yale New Haven Hospital, and sees patients in Middlebury, New Haven, and Bridgeport, Connecticut. Patients on Vitals rate Dr. Fillmore 4.01 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4
  • 29 years of experience
  • speaks English, Spanish
  • Yale University School Of Medicine
  • 17 written reviews
  • 1 specialty
  • 16 areas of expertise
  • 2 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Jonathan James Fillmore has 3 locations

Alliance Medical Group Middlebury

1625 Straits TpkeMiddlebury, CT 06762
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Yale New Haven Hospital

20 York StNew Haven, CT 06510

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Dr. Jonathan James Fillmore, MD
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Dr. Jonathan James Fillmore, MDDr. Thomas Gordon Jones, MDDr. Denise Marie Mcgowan, MDAlexandra A Dias
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismPediatrics
Accepts New Patients Accepts New Patients
4 
4.6 
5 
0 
29 Years of Experience 49 Years of Experience 42 Years of Experience 8 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English
Middlebury , CTFarmington , CTWest Haven , CTWINSTON SALEM , NC
Med School: Weill Cornell Medical College Med School: Albert Einstein College Of Medicine Of Yeshiva University Med School: School Of Medicine At Stony Brook University Medical Center Med School: Lincoln Memorial University Debusk College Of Osteopathic Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Jonathan James Fillmore

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Jonathan James Fillmore has the following specialty

Specialty Expertise

Dr. Jonathan James Fillmore has the following 16 areas of expertise

  • Acromegaly
  • Addison Disease
  • Bone Densitometry
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Endocrinology
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Insulin Resistance
  • Polycystic Ovary Syndrome (PCOS)

Certifications, License, & Education

29 Years Experience

Dr. Jonathan James Fillmore holds an expired medical license in the state of Connecticut.

Medical License

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

Education & Training

Residency

Completed their residency at Yale University School Of Medicine.

Medical School

Graduated from Weill Cornell Medical College in 1997.

NPI Number

Dr. Fillmore's NPI number is 1578592713.

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Frequently Asked Questions

How can I make an appointment with Dr. Jonathan Fillmore?
You can find contact information for Dr. Jonathan Fillmore here on Vitals.
Does Dr. Jonathan Fillmore accept virtual/telehealth appointments?
Dr. Jonathan Fillmore has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Jonathan Fillmore accepting new patients?
Dr. Jonathan Fillmore is accepting new patients on Vitals. View Dr. Jonathan Fillmore's profile on Vitals to make an appointment.
Does Dr. Jonathan Fillmore accept my insurance?
You can see the insurance plans that Dr. Jonathan Fillmore accepts on their Vitals profile.
Which hospitals is Dr. Jonathan Fillmore affiliated with?
Dr. Jonathan Fillmore is affiliated with Saint Vincents Medical Center and Yale New Haven Hospital.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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