Summary

Dr. William Dieck is an ophthalmologist with expertise in internal medicine who has been caring for patients for over four decades. He earned his medical degree from New York Medical College and completed his residency at Westchester Medical Center. His dual training in eye care and internal medicine allows him to provide comprehensive care that addresses both vision concerns and overall health needs. Dr. Dieck is fluent in both Spanish and English.

Dr. Dieck practices at Northern Westchester Hospital in Mount Kisco, New York, and maintains an affiliation with Phelps Hospital. He specializes in treating cataracts and glaucoma, two of the most common eye conditions affecting adults. His experience includes managing posterior vitreous detachment and performing comprehensive eye exams and dilated eye exams to monitor eye health. Patients consistently rate Dr. Dieck highly for his care, giving him an average rating of 4.0 stars.

Overview based on verified provider data

Quick Facts

  • 4
  • 43 years of experience
  • 36 insurance plans accepted
  • speaks Spanish, English
  • Westchester Medical Center
  • 7 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr William Brian Dieck has 2 locations

Northern Westchester Hospital

400 E Main StMount Kisco, NY 10549

Phelps Hospital

701 N BroadwaySleepy Hollow, NY 10591

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Dr William Brian DieckDr. Sing Your Li, MDDr. Sandra C Belmont, ODDr. George Tung, MD
OphthalmologyOphthalmologyOphthalmologyOphthalmology
Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
3.9 
43 Years of Experience 19 Years of Experience 47 Years of Experience 43 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, English Speaks English Speaks English Speaks English, Spanish
Mount Kisco , NYBellmore , NYNew York , NYBellmore , NY
Med School: New York Medical College Med School: Weill Cornell Medical College Med School: Suny Downstate Medical Center College Of Medicine Med School: Weill Cornell Medical College
Current Profile
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Insurance Plans Accepted by Dr William Brian Dieck

  • 1199SEIU
  • AARP
  • Aetna
  • Aetna - Medicare (Advantage HMO)
  • AmeriGroup
  • Blue Cross Blue Shield
  • CHAMPVA
  • Cigna
  • Cigna-HealthSpring
  • ConnectiCare
  • EmblemHealth
  • Fidelis Care (NY)
  • Fidelis Care (NY) - Medicare (Advantage HMO)
  • Health First Health Plans
  • HealthFirst (NY)
  • Humana
  • MagnaCare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • MetroPlus Health Plan
  • Molina Healthcare
  • MVP Health Care
  • Nippon Life Benefits
  • Optum Health
  • Partners Health Plan
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare Oxford
  • Wellcare

Medical Specialties

Dr William Brian Dieck has the following 2 specialties

Specialty Expertise

Dr William Brian Dieck has the following 13 areas of expertise

  • Blindness
  • Cataract
  • Cataract Surgery
  • Contact lenses
  • Diabetic Retinopathy
  • Eye Exam
  • Eye Pain
  • Glaucoma
  • Internal Medicine
  • Lasik Surgery
  • Lens Implants (Intraocular Lens Implantation)
  • Macular Degeneration
  • Vision Issues

Certifications, License, & Education

43 Years Experience

Education & Training

Residency

Completed their residency at Westchester Medical Center.

Medical School

Graduated from New York Medical College in 1983.

NPI Number

Dr Dieck's NPI number is 1316051360.

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Frequently Asked Questions

Is Dr William Dieck accepting new patients?
Dr William Dieck has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr William Dieck accept my insurance?
You can see the insurance plans that Dr William Dieck accepts on their Vitals profile.
Which hospitals is Dr William Dieck affiliated with?
Dr William Dieck is affiliated with Phelps Hospital.
Does Dr William Dieck accept virtual/telehealth appointments?
Dr William Dieck has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr William Dieck's office located?
Dr William Dieck's office is located at 400 E Main St, Mount Kisco, NY, 10549.

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