Takes about two minutes. Only your first name or chosen display name is shown — your email stays private.
Dr. John Tloczkowski is an endocrinologist in Huntington, New York, practicing with North Shore Medical Group of the Mount Sinai School of Medicine.
Key facts
- Specialty
- Endocrinologist
- Credentials
- MD
- Practice
- North Shore Medical Group of the Mount Sinai School of Medicine
- Address
- 325 Park Ave, Huntington, NY 11743
- Phone
- (631) 659-4400
- Other locations
- 5 Cuba Hill Rd, Greenlawn, NY 11740
- Medical school
- State University of New York Upstate Medical University (2007)
- Hospital affiliations
- North Shore University Hospital
- Medicare assignment
- Accepts
- Telehealth
- Available
- NPI number
- 1730402702
- NY license no.
- 257389
Dr. Tloczkowski earned his medical degree at State University of New York Upstate Medical University in 2007 — 19 years ago.
The office is at 325 Park Ave, Huntington, NY 11743; the phone number on record is (631) 659-4400. He also has a listed practice location at 5 Cuba Hill Rd, Greenlawn, NY 11740. 331 clinicians bill Medicare through North Shore Medical Group of the Mount Sinai School of Medicine, so it is a large group practice rather than a solo office. Dr. Tloczkowski accepts Medicare assignment, which means he takes the Medicare-approved amount as full payment for covered services. Telehealth visits are listed as available.
Hospital affiliations on file with Medicare: North Shore University Hospital.
Your review of Dr. Tloczkowski — wait times, how well things were explained, how you were treated — helps other patients decide.
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 1,296 people with traditional Medicare, average age 75
- Most common services billed to Medicare
- Insertion of needle into vein for collection of blood sample
- Blood test, comprehensive group of blood chemicals
- Hemoglobin a1c level
- New York Medicaid
- Enrolled fee-for-service provider since 2012. Medicaid managed-care plans keep their own networks, so check with your plan.
- Hospital pages
- North Shore University Hospital
Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.
Comparing endocrinologists? See 51 across Long Island.
Other endocrinologists in Long Island
Dr. David B. Kugler, DOEndocrinologist · Endocrine Associates of Long Island, PCNo reviews yetSmithtown, NY
Dr. Deirdre C. Eschler, MDEndocrinologist · Stony Brook Internists University Faculty Practice CorporationNo reviews yetStony Brook, NY
Dr. Diana Yu, MDEndocrinologist · North Shore-Lij Medical PCNo reviews yetMedford, NY
Dr. Ella Rosenbloom, MDEndocrinologist · Harbor View Medical Services PCNo reviews yetPort Jefferson, NY
Dr. Igor Kravets, MDEndocrinologist · Stony Brook Internists University Faculty Practice CorporationNo reviews yetStony Brook, NY
Dr. James R. Hess, DOEndocrinologist · Stony Brook Internists University Faculty Practice CorporationNo reviews yetStony Brook, NYWrite a review
Frequently Asked Questions
With North Shore Medical Group of the Mount Sinai School of Medicine, at 325 Park Ave, Huntington, NY 11743.
Call the office at (631) 659-4400.
Yes — Dr. Tloczkowski accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
North Shore University Hospital.
Is this your profile?
