Summary

Dr. David Kugler is a board-certified endocrinologist specializing in diabetes and metabolism disorders. He graduated from New York Institute of Technology College of Osteopathic Medicine and completed his residency at University Hospital SUNY Stony Brook. With 44 years of medical experience, Dr. Kugler has built extensive expertise in treating complex hormonal and metabolic conditions. He is fluent in both English and Spanish.

Dr. Kugler practices at Saint Catherine of Siena Medical Center and maintains affiliations with Stony Brook University Hospital, both located in Smithtown, New York. His clinical focus includes treating patients with fatigue, high cholesterol in children and teens, and familial lipid disorders. He performs blood tests, thyroid hormone evaluations, and continuous glucose monitoring to help diagnose and manage endocrine conditions. Patients have given Dr. Kugler an average rating of 4.3 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 44 years of experience
  • speaks English, Spanish
  • University Hospital Suny Stony Brook
  • 16 written reviews
  • 1 specialty
  • 16 areas of expertise
  • 2 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. David Bruce Kugler has 2 locations

Endocrine Associates Of Long Island Pc

732 Smithtown Byp Ste 103Smithtown, NY 11787
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 1:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 4:00 pm
SatClosed
SunClosed

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Dr. David Bruce Kugler, DO
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Dr. David Bruce Kugler, DODr. Gabrielle Paula Grinstein, MDDr. Betty Liwah ChanDr. Yu Mi Kang
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
4.9 
44 Years of Experience 32 Years of Experience 41 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish
Smithtown , NYNew York , NYBellport , NYBoston , MA
Med School: New York Institute Of Technology College Of Osteopathic Medicine Med School: Universidad De Buenos Aires Med School: Univ Of Toronto Fac Of Med Med School: Chonbuk National University College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. David Bruce Kugler

  • Accepts Medicare

Medical Specialties

Dr. David Bruce Kugler has the following specialty

Specialty Expertise

Dr. David Bruce Kugler has the following 16 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Lipid Disorders
  • Lipid Metabolism Disorders
  • Osteoporosis
  • Thyroid Diseases

Certifications, License, & Education

44 Years Experience

Dr. David Bruce Kugler holds an expired medical license in the state of New York.

Medical License

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

Education & Training

Residency

Completed their residency at University Hospital Suny Stony Brook.

Medical School

Graduated from New York Institute Of Technology College Of Osteopathic Medicine in 1982.

NPI Number

Dr. Kugler's NPI number is 1174570147.

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Frequently Asked Questions

Where is Dr. David Kugler's office located?
Dr. David Kugler's office is located at 732 Smithtown Byp Ste 103, Smithtown, NY, 11787.
Which hospitals is Dr. David Kugler affiliated with?
Dr. David Kugler is affiliated with STONY BROOK UNIVERSITY HOSPITAL and Saint Catherine Of Siena Medical Center.
How can I make an appointment with Dr. David Kugler?
You can find contact information for Dr. David Kugler here on Vitals.
Is Dr. David Kugler accepting new patients?
Dr. David Kugler is accepting new patients on Vitals. View Dr. David Kugler's profile on Vitals to make an appointment.
Does Dr. David Kugler accept my insurance?
You can see the insurance plans that Dr. David Kugler accepts on their Vitals profile.

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