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Dr. John Casler, MD

Dr. John Casler, MD

Age 64 Ear, Nose, and Throat M
(17) 17 reviews

Telehealth available

New Patient

(904) 717-0207

Dr. John Casler, MD is a otolaryngology (ear, nose & throat) specialist in Jacksonville, FL. Dr. Casler completed a residency at Walter Reed Army Medical Center. He currently practices at Mayo Clinic - Florida and is affiliated with Mayo Clinic Hospital . He accepts multiple insurance plans. Dr. Casler is board certified in Otolaryngology.


New Patient? (904) 717-0207
  1. Mayo Clinic - Florida

    1. 1
      Jacksonville - Cancer
      4500 San Pablo Rd S, Jacksonville, FL 32224 Call
      Existing Patients: (904) 717-0207
      New Patients:
      (904) 717-0207




  • St Vincents/Colum-Presby Me, Fellowship Hospital — 1989
  • Walter Reed Army Medical Center, Residency Hospital — 1988
  • Walter Reed Army Medical Center, Internship Hospital — 1984

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • MultiPlan

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Dr. Casler is the best! I traveled to Mayo clinic just to see him! Highly recommend him!
Kathy — Aug 20, 2021
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Dr. John Casler, MD
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Hospital Affiliations

  • Mayo Clinic Hospital 

Frequently Asked Questions

Dr. Casler frequently treats Endocrine Surgical Procedures and Sleep Apnea.