Summary

Dr. Jonathan Fillmore specializes in endocrinology, diabetes, and metabolism, bringing nearly three decades of medical expertise to patient care. He earned his medical degree from Weill Cornell Medical College and completed his residency training at Yale University School of Medicine. With 29 years of experience treating complex hormonal and metabolic conditions, Dr. Fillmore has developed particular expertise in diabetes management across different age groups. He provides care in both English and Spanish to serve diverse patient populations.

Dr. Fillmore practices at Saint Vincents Medical Center and Yale New Haven Hospital, with locations in Middlebury, New Haven, and Bridgeport, Connecticut. He focuses on managing type 2 diabetes in adults and provides specialized care for children and teenagers with diabetes. His expertise extends to treating diabetes in older adults, addressing the unique challenges this population faces. Common procedures include complete blood counts, A1c testing to monitor blood sugar control, and heel stick tests for blood sampling. Patients rate Dr. Fillmore 4.0 out of 5 stars for his comprehensive approach to endocrine care.
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AI-generated from data on this provider profile.

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

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, MDDr. Martin Opoku Gyamfi, NDKathryn Mary PetersonAdey Abebe
Endocrinology, Diabetes & MetabolismNaturopathyNurse PractitionerNurse Practitioner
Accepts New Patients Accepts New Patients
29 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English
Middlebury , CTBERLIN , CTBranford , CTDanbury , CT
Med School: Weill Cornell Medical College Med School: River Plate Adventist University School of Medicine - Doctor of Medicine
Current Profile
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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

MEDICAL LICENSE

Medical Doctor, Connecticut, 2026, Expired

EDUCATION & TRAINING

Residency

Yale University School Of Medicine

Medical School

Weill Cornell Medical CollegeGraduated in 1997

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Frequently Asked Questions

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.
Where is Dr. Jonathan Fillmore's office located?
Dr. Jonathan Fillmore's office is located at 1625 Straits Tpke, Middlebury, CT, 06762.
What languages does Dr. Jonathan Fillmore speak?
Dr. Jonathan Fillmore speaks English and Spanish.

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