Summary

Dr. John Casler brings over four decades of specialized expertise in otolaryngology-head and neck surgery and neurological surgery. They earned their medical degree from George Washington University School of Medicine & Health Sciences, establishing a strong foundation for their dual-specialty practice that combines intricate knowledge of both the head and neck region and complex neurological procedures.

Dr. Casler practices at Mayo Clinic Jacksonville in Jacksonville, Florida, where they focus on treating conditions such as parathyroid disease, hyperparathyroidism, and thyroid nodules. Their surgical expertise includes performing comprehensive diagnostic evaluations and specialized procedures to address these complex endocrine and head-neck disorders. Patients consistently rate Dr. Casler highly for their care, with an average rating of 4.9 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.9
  • 43 years of experience
  • George Washington University School Of Medicine & Health Sciences
  • 7 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location

Patients’ Perspective

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

Office Location

Mayo Clinic Jacksonville

4500 San Pablo Rd SJacksonville, FL 32224

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Dr. John D. Casler, MD
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Dr. John D. Casler, MDAlexis Kate SwindleDr. Carlos Perez VegaDr. Raphael Augusto Correa Bastianon Santiago
Otolaryngology-Head & Neck SurgeryNurse PractitionerNeurological SurgeryNeurological Surgery
Accepts New Patients Accepts New Patients
4.9 
43 Years of Experience 7 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Jacksonville , FLJacksonville , FLJacksonville , FLBuffalo , NY
Med School: George Washington University School Of Medicine & Health Sciences Med School: Escuela De Medicina Ignacio A Santos
Current Profile
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Insurance Plans Accepted by Dr. John D. Casler

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John D. Casler has the following 2 specialties

Specialty Expertise

Dr. John D. Casler has the following 11 areas of expertise

  • Allergies
  • Chronic Sinusitis
  • Deviated Septum
  • Facial Trauma
  • Head and Neck Cancer
  • Hearing Loss
  • Neurological Surgery
  • Polyps
  • Smell Disorders
  • Swallowing Disorders
  • Tumors

Certifications, License, & Education

43 Years Experience

Dr. John D. Casler holds an expired medical license in the state of Florida.

Medical License

Medical Doctor with an expired medical license in the state of Florida that expired in 2026.

Education & Training

Medical School

Graduated from George Washington University School Of Medicine & Health Sciences in 1983.

NPI Number

Dr. Casler's NPI number is 1730183096.

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Frequently Asked Questions

Does Dr. John Casler accept my insurance?
You can see the insurance plans that Dr. John Casler accepts on their Vitals profile.
Is Dr. John Casler accepting new patients?
Dr. John Casler is accepting new patients on Vitals. View Dr. John Casler's profile on Vitals to make an appointment.
Where is Dr. John Casler's office located?
Dr. John Casler's office is located at 4500 San Pablo Rd S, Jacksonville, FL, 32224.
How can I make an appointment with Dr. John Casler?
You can find contact information for Dr. John Casler here on Vitals.
Which hospitals is Dr. John Casler affiliated with?
Dr. John Casler is affiliated with Mayo Clinic Jacksonville.

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