Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Physician Directory

Find a Doctor

Dr. Diane M. Horowitz, MD

Internal Medicine

  • (516) 708-2550

Dr. Horowitz's Overview

Dr. Diane M. Horowitz graduated from the Stony Brook University School of Medicine in 2004. She works in Great Neck, NY and specializes in Internal Medicine and Rheumatology. Dr. Horowitz is affiliated with Long Island Jewish Medical Center.

Dr. Horowitz's Experience

Years in Practice: 11

Procedures Performed by Dr. Horowitz

Dr. Horowitz's Specialties

Internal Medicine, Rheumatology

Dr. Horowitz's Education & Training

Medical School: Stony Brook University School of Medicine; Graduated 2004

Dr. Horowitz's Rating

Rate This Doctor

Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
  • View All Ratings

Dr. Horowitz's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Elect Choice EPO
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
  • View More

Dr. Horowitz's Office Information & Appointments

Office Locations

North Shore-Long Island Jewish Medical Gr
North Shore Long Island Jewish Rheumatology

865 Northern Blvd Ste 302
Great Neck, NY 11021
(516) 708-2550


Office Hours and Information

Fax: (516) 708-2597

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 9:00 AM - 5:00 PM
Tuesday 9:00 AM - 5:00 PM
Wednesday 9:00 AM - 5:00 PM
Thursday 9:00 AM - 5:00 PM
Friday 9:00 AM - 5:00 PM
Saturday 9:00 AM - 12:00 PM
Sunday 8:00 AM - 5:00 PM

Other Physicians in Dr. Horowitz's Practice

Dr. Horowitz's Hospital Affiliations

Office Locations

Other Internists Near Great Neck, NY

View More Internists