Summary

Dr. Martin Greenfield is an endocrinologist specializing in diabetes and metabolism with 58 years of clinical experience. He earned his medical degree from SUNY Downstate Medical Center College of Medicine and completed his residency at Brigham & Women's Hospital. Dr. Greenfield is board-certified in his specialty and provides care in English.

Dr. Greenfield practices at Long Island Jewish Medical Center in New Hyde Park, New York. He focuses on treating Type 2 diabetes in both adults and pediatric patients, as well as managing hyperglycemic emergencies. His expertise includes performing thyroid hormone testing and comprehensive blood work to monitor patient health. Patients have given Dr. Greenfield an average rating of 2.8 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 2.8
  • 58 years of experience
  • 32 insurance plans accepted
  • speaks English
  • Brigham & Womens Hospital
  • 11 written reviews
  • 2 specialties
  • 18 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Dr. Martin Greenfield

2 Ohio Dr Ste 201New Hyde Park, NY 11042
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

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Dr. Martin Greenfield, MDDr. Yi Liu, MDDr. Aaron P Schulman, MDDr. Tirissa Jean Reid, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients
2.8 
4.7 
3.9 
58 Years of Experience 14 Years of Experience 22 Years of Experience 22 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
New Hyde Park , NYNew York , NYNew York , NYNew York , NY
Med School: Suny Downstate Medical Center College Of Medicine Med School: Xiangya School Of Medicine Central South University Med School: New York University School Of Medicine Med School: Albert Einstein College Of Medicine Of Yeshiva University
Current Profile
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Insurance Plans Accepted by Dr. Martin Greenfield

  • Accepts Medicare
  • Accepts Medicaid
  • 1199SEIU
  • AARP
  • Aetna
  • Aetna - Medicare
  • Affinity Health Plan
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Cigna
  • Cigna-HealthSpring
  • EmblemHealth
  • Fidelis Care (NY)
  • HealthFirst (NY)
  • HealthFirst (NY) - Medicare (Advantage HMO)
  • Humana
  • Integra
  • MagnaCare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Molina Healthcare
  • MVP Health Care - HMO
  • Nippon Life Benefits
  • Northwell Direct
  • Oscar Health Insurance
  • Tricare
  • Tufts Health Plan
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • Wellcare

Medical Specialties

Dr. Martin Greenfield has the following 2 specialties

Specialty Expertise

Dr. Martin Greenfield has the following 18 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes, Type 2
  • Endocrinology
  • Endocrinology & Metabolism
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Lipid Disorders
  • Osteoporosis
  • Thyroid Diseases
  • Weight Loss

Certifications, License, & Education

58 Years Experience

MEDICAL LICENSE

Medical Doctor, New York, 2026, Active

EDUCATION & TRAINING

Residency

Brigham & Womens Hospital

Medical School

Suny Downstate Medical Center College Of MedicineGraduated in 1968

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Frequently Asked Questions

Does Dr. Martin Greenfield accept virtual/telehealth appointments?
Dr. Martin Greenfield has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Martin Greenfield accepting new patients?
Dr. Martin Greenfield has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Martin Greenfield speak?
Dr. Martin Greenfield speaks English.
How can I make an appointment with Dr. Martin Greenfield?
You can find contact information for Dr. Martin Greenfield here on Vitals.
Does Dr. Martin Greenfield accept my insurance?
You can see the insurance plans that Dr. Martin Greenfield accepts on their Vitals profile.

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