Summary

Dr. Gregory Zanieski is a surgeon who specializes in surgical oncology, focusing on cancer treatment through surgical intervention. He earned his medical degree from Renaissance School of Medicine at Stony Brook University and completed his residency at New York Methodist Hospital. With 24 years of experience in the field, Dr. Zanieski brings extensive expertise to his practice. He is fluent in both Spanish and English.

Dr. Zanieski practices at Yale New Haven Hospital and Yale New Haven Hospital Saint Raphael Campus in New Haven, Connecticut, as well as Smilow Cancer Hospital. He has particular expertise in treating breast cancer, including complex cases involving metastatic or recurrent breast cancer. His practice also includes care for patients with Paget disease of the breast. Patients have given him an average rating of 4.2 out of 5 stars on Vitals, reflecting their confidence in his surgical care and treatment approach.

AI-generated from data on this provider profile.

Quick Facts

  • 4.2
  • 24 years of experience
  • speaks Spanish, English
  • New York Methodist Hospital
  • 8 written reviews
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 3 office locations
  • Male

Office Locations

Dr. Gregory John Zanieski has 3 locations

Yale New Haven Hospital

20 York StNew Haven, CT 06510

Smilow Cancer Hospital

35 Park StNew Haven, CT 06519

Compare with Similar Doctors

Dr. Gregory John Zanieski, MD
Dr. Steven Almour Hirshorn, MD
Dr. Sajid Ali Khan, MD
Dr. Ashok Kumar Maheshwari, MD
Dr. Gregory John Zanieski, MDDr. Steven Almour Hirshorn, MDDr. Sajid Ali Khan, MDDr. Ashok Kumar Maheshwari, MD
SurgeryColorectal SurgerySurgical OncologyEmergency Medicine
Accepts New Patients Accepts New Patients
4.2 
3.7 
24 Years of Experience 49 Years of Experience 23 Years of Experience 49 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks English, Spanish Speaks Spanish, English Speaks English
New Haven , CTDerby , CTNew Haven , CTGroton , CT
Med School: Renaissance School Of Medicine At Stony Brook University Med School: Weill Cornell Medical College Med School: Suny Upstate Medical University Alan And Marlene Norton Coll Of Med Med School: Mahatma Gandhi Memorial Medical College
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Gregory John Zanieski

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gregory John Zanieski has the following 2 specialties

Specialty Expertise

Dr. Gregory John Zanieski has the following 2 areas of expertise

  • General Surgery
  • Surgical Oncology

Certifications, License, & Education

24 Years Experience

MEDICAL LICENSE

Medical Doctor, Connecticut, 2026, Expired

EDUCATION & TRAINING

Residency

New York Methodist Hospital

Medical School

Renaissance School Of Medicine At Stony Brook UniversityGraduated in 2002

Similar doctors

Frequently Asked Questions

Which hospitals is Dr. Gregory Zanieski affiliated with?
Dr. Gregory Zanieski is affiliated with Nuvance Health Vassar Brothers Medical Center, Yale New Haven Hospital Saint Raphael Campus, Yale New Haven Hospital, and Connecticut Mental Health Center.
Does Dr. Gregory Zanieski accept my insurance?
You can see the insurance plans that Dr. Gregory Zanieski accepts on their Vitals profile.
Where is Dr. Gregory Zanieski's office located?
Dr. Gregory Zanieski's office is located at 20 York St, New Haven, CT, 06510.
Does Dr. Gregory Zanieski accept virtual/telehealth appointments?
Dr. Gregory Zanieski has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Gregory Zanieski?
You can find contact information for Dr. Gregory Zanieski here on Vitals.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.