Summary

Dr. Dawn Williamson is an internal medicine and emergency medicine specialist with 35 years of clinical experience. She earned her medical degree from SUNY Downstate Medical Center College of Medicine, building a strong foundation for her dual specialty practice. Dr. Williamson provides care in both internal medicine and emergency medicine, offering comprehensive treatment across these complementary fields. She communicates with patients in English.

Dr. Williamson practices at Mount Sinai South Nassau in Oceanside, New York. She specializes in treating abdominal pain and managing nausea and vomiting related to cancer treatment. Her emergency medicine expertise includes providing urgent care and performing arterial blood gas analysis and comprehensive metabolic panel testing. Patients have given her an average rating of 4.0 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 4
  • 35 years of experience
  • 47 insurance plans accepted
  • speaks English
  • Suny Downstate Medical Center College Of Medicine
  • 2 specialties
  • 1 area of expertise
  • 1 office location
  • Female

Office Location

Mount Sinai South Nassau

1 Healthy WayOceanside, NY 11572

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Dr. Dawn Ellen Williamson, MD
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Dr. Dawn Ellen Williamson, MDDr. Monte Ezratty, MDDr. Jenny Liu, MD, MS, LDRoy Martin
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
3.6 
35 Years of Experience 29 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks Chinese, English, Spanish
Oceanside , NYBronx , NYWarren , NJCollege Point , NY
Med School: Suny Downstate Medical Center College Of Medicine Med School: University Of Toledo College Of Medicine Med School: Guangdong Pharmaceutical University
Current Profile
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Insurance Plans Accepted by Dr. Dawn Ellen Williamson

  • 1199SEIU
  • 1199SEIU - Medicare (Advantage HMO)
  • AARP
  • AARP - Medicare (Advantage HMO)
  • Aetna
  • AgeWell New York
  • AmeriGroup
  • Blue Cross Blue Shield
  • CareSource
  • CareSource - Medicaid
  • CenterLight Healthcare
  • Cigna
  • Elderplan
  • Elderplan - Medicare (Advantage HMO)
  • EmblemHealth - Medicare (Advantage HMO)
  • Fidelis Care (NY)
  • First Health (Coventry Health Care)
  • Health First Health Plans
  • HealthChoice
  • HealthFirst (NY)
  • Humana
  • Humana - Medicare (Advantage HMO)
  • Kaiser Permanente
  • Kaiser Permanente - Medicaid (Managed)
  • Longevity Health Plan
  • MagnaCare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Medicare - Medicare (Advantage HMO)
  • MedStar Family Choice
  • MetroPlus Health Plan
  • Molina Healthcare
  • Mutual of Omaha
  • MVP Health Care
  • National Vision Administrators
  • National Vision Administrators - Workers’ Compensation
  • Optum Health
  • Oscar Health Insurance
  • Tricare
  • United American
  • UnitedHealthcare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare Oxford
  • Wellcare
  • Wellcare - Medicare

Medical Specialties

Dr. Dawn Ellen Williamson has the following 2 specialties

Specialty Expertise

Dr. Dawn Ellen Williamson has the following area of expertise

  • Emergency Medicine

Certifications, License, & Education

35 Years Experience

Dr. Dawn Ellen Williamson holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2027.

Education & Training

Medical School

Graduated from Suny Downstate Medical Center College Of Medicine in 1991.

NPI Number

Dr. Williamson's NPI number is 1073592549.

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Frequently Asked Questions

Where is Dr. Dawn Williamson's office located?
Dr. Dawn Williamson's office is located at 1 Healthy Way, Oceanside, NY, 11572.
What languages does Dr. Dawn Williamson speak?
Dr. Dawn Williamson speaks English.
Does Dr. Dawn Williamson accept my insurance?
You can see the insurance plans that Dr. Dawn Williamson accepts on their Vitals profile.
How can I make an appointment with Dr. Dawn Williamson?
You can find contact information for Dr. Dawn Williamson here on Vitals.
Does Dr. Dawn Williamson accept virtual/telehealth appointments?
Dr. Dawn Williamson has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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