0 reviews
Summary
Dr. Lawrence Posner is a medical doctor specializing in oncology and internal medicine. With an impressive 52 years of clinical experience, he brings extensive knowledge to cancer care and comprehensive internal medicine practice. Dr. Posner earned his medical degree from Case Western Reserve University School of Medicine, establishing a strong foundation for his decades-long career in patient care.
Dr. Posner practices in Greenwich, Connecticut, where he serves patients requiring specialized cancer treatment and internal medicine services. His extensive experience spans more than five decades, during which he has developed deep expertise in managing complex medical conditions. The combination of his oncology specialization and internal medicine background allows him to provide comprehensive care for patients with cancer while addressing their overall health needs.
Dr. Posner practices in Greenwich, Connecticut, where he serves patients requiring specialized cancer treatment and internal medicine services. His extensive experience spans more than five decades, during which he has developed deep expertise in managing complex medical conditions. The combination of his oncology specialization and internal medicine background allows him to provide comprehensive care for patients with cancer while addressing their overall health needs.
AI-generated from data on this provider profile.
Quick Facts
- 52 years of experience
- Case Western Reserve University School Of Medicine
- 2 specialties
- 2 areas of expertise
- 1 office location
- Male
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Lawrence Eugene Posner | Dr. Isabel Preeshagul, DO | Dr. Sunil Girish Iyer, MD | Dr. Dawn L Hershman, MD |
| Oncology | Oncology | Oncology | Oncology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 52 Years of Experience | 18 Years of Experience | 9 Years of Experience | 32 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks Spanish, English | Speaks Spanish | |
| Greenwich , CT | Montvale , NJ | New York , NY | New York , NY |
| Med School: Case Western Reserve University School Of Medicine | Med School: Lake Erie College of Osteopathic Medicine | Med School: University Of Miami Leonard M Miller School Of Medicine | Med School: Albert Einstein College Of Medicine Of Yeshiva University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Lawrence Eugene Posner
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Lawrence Eugene Posner has the following 2 specialties
Specialty Expertise
Dr. Lawrence Eugene Posner has the following 2 areas of expertise
Certifications, License, & Education
52 Years Experience
EDUCATION & TRAINING
Medical School
Case Western Reserve University School Of MedicineGraduated in 1974
Similar Doctors
Frequently Asked Questions
- Is Dr. Lawrence Posner accepting new patients?
- Dr. Lawrence Posner has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. Lawrence Posner?
- You can find contact information for Dr. Lawrence Posner here on Vitals.
- Does Dr. Lawrence Posner accept my insurance?
- You can see the insurance plans that Dr. Lawrence Posner accepts on their Vitals profile.
- Does Dr. Lawrence Posner accept virtual/telehealth appointments?
- Dr. Lawrence Posner has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Lawrence Posner's office located?
- Dr. Lawrence Posner's office is located at 633 Round Hill Rd, Greenwich, CT, 06831.
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.





