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Dermatologist, Surgeon, Colon & Rectal Surgeon
36 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Ratz, Dermatologist, Surgeon, Colon & Rectal Surgeon is Excellent. Dr. Ratz has been reviewed by 4 patients who have provided 0 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 4.0
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 3.0

Specialties & Research

Dr. John Ratz, MD is board certified in Dermatology.

  • He has special expertise in 12 areas:
  • Acne Rosacea
  • Cicatrix
  • Cosmetic Surgery (Aesthetic Procedures)
  • Laser Surgery
  • Melanoma
  • Mohs Surgery (Dermatological Surgery)
  • Pigmentation Disorders
  • Skin Cancer
  • Skin Cancer (Basal Cell Carcinoma)
  • Skin Diseases
  • Squamous Cell Carcinoma
  • Vascular Tumor (Hemangioma)

Education & Awards

Dr. Ratz graduated from Case Western Reserve University , Cleveland. He has 3 awards.

One of America's Leading Experts on:
Skin Cancer (Skin Neoplasms)
Gold ivy leaf aurora college graduation w/highest honors
On-Time Doctor Award (2014)


  • Romanian

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Additional Information
Dr. John Louis Ratz MD is a male Dermatologist, has 36 years of experience and practices in Dermatology and Procedural Dermatology.
Where does Dr. John L. Ratz practice?
Dr. John Ratz has 15 office locations.
Dr. John Ratz practices Dermatology and Procedural Dermatology near Palm Harbor, FL.
Additional practice locations include: Mount Pleasant, WI and Clearwater, FL.
See Palm Harbor Dermatologists.