Summary

Dr. John Tloczkowski is a board-certified endocrinologist specializing in diabetes and metabolism with 19 years of experience. He earned his medical degree from SUNY Upstate Medical University College of Medicine and completed his residency at the Icahn School of Medicine at Mount Sinai West in 2010. Dr. Tloczkowski communicates with patients in English.

Dr. Tloczkowski practices at The Mount Sinai Hospital and sees patients in Greenlawn, New York. He has particular expertise in treating high cholesterol in children and teens, as well as managing hyperlipidemia and familial lipid disorders. His practice includes performing blood tests and complete blood counts to monitor patient health. Patients rate Dr. Tloczkowski 4.4 out of 5 stars for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 19 years of experience
  • 22 insurance plans accepted
  • speaks English
  • Icahn School of Medicine at Mount Sinai West
  • 1 written review
  • 2 specialties
  • 13 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

MSD - Long Island (Huntington)

5 Cuba Hill RdGreenlawn, NY 11740

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John P Tloczkowski, MDDr. Patricia M. Vuguin, MDDr. Caroline B Chiu, MDDr. Adriana P. Kuker, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
4.3 
19 Years of Experience 38 Years of Experience 14 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option Virtual Visit Available
Speaks English Speaks Spanish Speaks Spanish, Chinese Speaks Spanish
Greenlawn , NYBronx , NYForest Hills , NYEastchester , NY
Med School: SUNY Upstate Medical University College of Medicine Med School: Universidad De Buenos Aires Med School: University of Texas Medical School at Houston Med School: New York University School Of Medicine
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Insurance Plans Accepted by John P Tloczkowski

  • Accepts Medicare
  • Accepts Medicaid
  • 1199 SEIU
  • 32BJ Health Fund
  • AETNA - Commercial
  • AETNA - Medicare
  • Anthem/Empire Blue Cross Blue Shield - Commercial
  • Anthem/Empire Blue Cross Blue Shield - HealthPlus Medicaid
  • Centivo
  • CIGNA Healthcare
  • Elderplan
  • EmblemHealth - GHI-PPO
  • EmblemHealth - HIP
  • EmblemHealth - HIP-Medicare
  • Healthfirst Exchange
  • Horizon NJ
  • Magnacare-Health Care
  • Medicare - NJ
  • Medicare - NY
  • Multiplan PHCS
  • Oscar
  • United Health Care - Empire Plan
  • United Health Care - UMR Top Tier
  • VNSNY Choice Medicare

Medical Specialties

John P Tloczkowski has the following 2 specialties

Specialty Expertise

John P Tloczkowski has the following 13 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes, Type 2
  • Endocrinology & Metabolism
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism

Certifications, License, & Education

19 Years Experience

John P Tloczkowski 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

Residency

Completed their residency at Icahn School of Medicine at Mount Sinai West in 2010.

Medical School

Graduated from SUNY Upstate Medical University College of Medicine in 2007.

NPI Number

John P Tloczkowski's NPI number is 1730402702.

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Frequently Asked Questions

Does John Tloczkowski accept my insurance?
You can see the insurance plans that John Tloczkowski accepts on their Vitals profile.
Is John Tloczkowski accepting new patients?
John Tloczkowski is accepting new patients on Vitals. View John Tloczkowski's profile on Vitals to make an appointment.
How can I make an appointment with John Tloczkowski?
You can find contact information for John Tloczkowski here on Vitals.
What languages does John Tloczkowski speak?
John Tloczkowski speaks English.
Where is John Tloczkowski's office located?
John Tloczkowski's office is located at 5 Cuba Hill Rd, Greenlawn, NY, 11740.

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