Dr. Ronald Johnson Sr, MD

Dr. Ronald Johnson Sr, MD

Endocrinology, Diabetes & Metabolism  ·  
Male  ·  
Age 69
Dr. Ronald Johnson Sr, MD is an endocrinology, diabetes & metabolism specialist in Columbia, SC and has been practicing for 43 years. He graduated from UNIV OF CINCINNATI COLL OF MED in 1975 and specializes in endocrinology, diabetes & metabolism.

4100 N Main St Ste 201

Columbia, SC 29203

Contact Information

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • Humana
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. Johnson Sr

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Johnson Sr performs your care needs compared to other doctors.

Diabetes Type 2
more than 84% of peers
Thyroid Disease
more than 60% of peers
Diabetic Ketoacidosis
more than 57% of peers

Dr. Johnson Sr's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

1  Specialties

  • Endocrinology, Diabetes & Metabolism

0  Board Certifications

Dr. Johnson Sr does not have any board certifications listed.

37  Conditions Treated


Read Less

1  Procedures

  • Diabetes Counseling

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for South Carolina.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


    Medical School | Graduated 1975
  • Dc Gen Hospital
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors

Dr. Johnson Sr has no awards or honors listed.

Media & Publications

Dr. Johnson Sr has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Johnson Sr does not have any memberships or affiliations listed. If you are Dr. Johnson Sr and would like to add memberships or affiliations, please update your profile.

Dr. Johnson Sr's Reviews

Likelihood of recommending Dr. Johnson Sr to family and friends
4 total reviews (1 has a comment)

Likelihood to Recommend (4)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Johnson Sr's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    31 to 45 minutes

Patient Comments (1)

Dr. Johnson is an awesome physician. He has been my doctor for 20 years. He sits &listens to your problems. He is a great doctor.
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