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Mark A. Castellaw, MD

Specializing in Internal Medicine

Dr. Mark Castellaw is a physician who joined Baptist Medical Group in 2013. Dr. Castellaw specializes in internal medicine and treats various acute and chronic health conditions. He cares for patients at Baptist Memorial Medical Group Inc. in Germantown, TN.


  • BMG



Bachelor of Science; University of Memphis; Memphis, TN

Medical School

University of Tennessee Health Science Center; Memphis, TN; 1981


Baptist Memorial Hospital, Memphis; 1986


Methodist Central Hospital; 1982

Awards, Certifications & Memberships

Awards & Recognition

Americas Top Physicians Award 2012

Board Certifications

Internal medicine

Medical Licensures

Licensed in Tennessee

Medical Career

Treatments and services provided

  • Physicals
  • Blood Pressure Control
  • Diabetes Control
  • Cholesterol Control

Diseases and conditions treated

  • Arthritis
  • Comprehensive Physicals
  • Diabetes
  • Heart Disease
  • High cholesterol
  • Hypertension

Languages Spoken


Meet The Doctor

What can a patient expect when they have you as a doctor?

We try to provide comprehensive and compassionate care for our patients.

What is the most important factor in a doctor-patient relationship and why?

The most important factors are relationships and a team approach where the patient is involved in their care.

What hobbies or activities do you enjoy when you're not working?

I enjoy outdoor sports, listening to Memphis music and church activities.

What about your line of work do you find the most rewarding and why?

Practicing medicine is rewarding in that you have the ability to help meet the needs of people that are sick and hurting. That is part of ministry of Christ, to help the sick and provide comfort. Also through comprehensive physicals we can help detect diseases early to prevent complications of diseases.

Schedule an Appointment

The Medical Group

8040 Wolf River Boulevard, Suite 200 | Get Directions
Germantown, TN 38138

Locations & Contact