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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 (19)

The overall average patient rating of Dr. Dan Castro is Average. Dr. Castro has been reviewed by 51 patients who have provided 19 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 3.6
Courteous Staff 3.8
Accurate Diagnosis 3.6
Bedside Manner 3.7
Spends Time with Me 3.6
Follows Up After Visit 3.4

Specialties & Research

Dr. Dan Castro, MD is board certified in Otolaryngology.

Education & Awards

Dr. Castro graduated from Univ Pierre Et Marie Curie (Paris Vi), Broussais-Hotel-Dieu. He has 7 awards.

Research training award aao-hns society
Clinical investigator award national institute of health
First prize, basic science research award american and british society of head and neck surgery
Bellville memorial award ucla medical center
Laser 87 award international conference on lasers
Shirley baron award western section of the triological society
National institute of health clinical investigator award


Dr. Castro has 4 hospital affiliations:

  • Battle Creek Health System 
  • Medical Center of SE Oklahoma 


  • French
  • English
  • Hebrew
  • Spanish

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Additional Information
Dr. Dan J Castro MD is a male Otolaryngologist, has 31 years of experience and practices in Otolaryngology.
Where does Dr. Dan J. Castro practice?
Dr. Dan Castro has 4 office locations.
Dr. Dan Castro practices Otolaryngology near Marshall, MI.
Additional practice locations include: Battle Creek, MI.
See Marshall Otolaryngologists.