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Geneticist, Obstetrician & Gynecologist (OB/GYN), Endocrinologist (diabetes, hormones)
34 years of experience
Accepting new patients
Video profile
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 (7)

The overall average patient rating of Dr. Mark Johnson is Excellent. Dr. Johnson has been reviewed by 18 patients who have provided 7 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 4.1
Courteous Staff 4.6
Accurate Diagnosis 4.7
Bedside Manner 4.7
Spends Time with Me 4.7
Follows Up After Visit 4.9

Specialties & Research

Dr. Mark Johnson, MD is board certified in Clinical Genetics (M.D.), Obstetrics & Gynecology, and Reproductive Endocrinology.

  • He has special expertise in 3 areas:
  • Diabetes
  • Hot Flashes
  • Menopause

Education & Awards

Dr. Johnson graduated from Tulane University, New Orleans. He has 3 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012, 2015)
Compassionate Doctor Recognition (2009 - 2012, 2015)


Dr. Johnson has 2 hospital affiliations:

  • Banner Good Samaritan Regional Medical Center 
  • Banner Desert Care Center 


  • Spanish

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Additional Information
Dr. Mark Douglas Johnson MD is a male Medical Geneticist, has 34 years of experience and practices in Obstetrics & Gynecology, Reproductive Endocrinology, Clinical Genetics, and M.D..
Where does Dr. Mark D. Johnson practice?
Dr. Mark Johnson has 1 office location.
Dr. Mark Johnson practices Obstetrics & Gynecology, Reproductive Endocrinology, Clinical Genetics, and M.D. near Phoenix, AZ.
See Phoenix Obstetricians & Gynecologists, Phoenix Endocrinologists, and Phoenix Geneticists.