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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).

Learn more about Dr. Mark Castellaw:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (14)

The overall average patient rating of Dr. Mark Castellaw is Average. Dr. Castellaw has been reviewed by 30 patients who have provided 14 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 2.8
Courteous Staff 3.2
Accurate Diagnosis 3.7
Bedside Manner 3.2
Spends Time with Me 2.8
Follows Up After Visit 3.0

Specialties & Research

Dr. Mark Castellaw, MD is board certified in Internal Medicine.

Education & Awards

Dr. Castellaw graduated from University of Tennessee, Memphis.


Dr. Castellaw has 23 hospital affiliations:

  • Baptist Memorial Hospital Tipton 
  • Baptist Memorial Hospital - Desoto 


  • Spanish
  • Arabic

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Additional Information
Dr. Mark A Castellaw MD is a male Internist, has 30 years of experience and practices in Internal Medicine.
Where does Dr. Mark A. Castellaw practice?
Dr. Mark Castellaw has 1 office location.
Dr. Mark Castellaw practices Internal Medicine near Germantown, TN.
See Germantown Internists.