> > > > Dr. John Blackman, MD
Dr. John David Blackman MD is a male Internist, has 26 years of experience and practices in Internal Medicine.
Video profile
Dr. John Blackman has 3 office locations.
OhioHealth Endocrinology Physicians, OhioHealth Eastside Health Center Medical Office Building
4882 E Main St
Ste 210
Columbus, OH 43213

Phone Number
Locations and availability (3)
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

  • Currently 3.5 of 4 stars
Patient comments (11)

The overall average patient rating of Dr. John Blackman is Excellent. Dr. Blackman has been reviewed by 23 patients who have provided 11 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.2
  • Currently 3.2352941176471 of 4 stars
Promptness 3.2
  • Currently 3.1764705882353 of 4 stars
Courteous Staff 3.4
  • Currently 3.3529411764706 of 4 stars
Accurate Diagnosis 3.4
  • Currently 3.3529411764706 of 4 stars
Bedside Manner 3.4
  • Currently 3.375 of 4 stars
Spends Time with Me 3.4
  • Currently 3.4375 of 4 stars
Follows Up After Visit 3.5
  • Currently 3.5 of 4 stars

Specialties & Research

Dr. John Blackman, MD is board certified in Internal Medicine.

  • He has special expertise in 7 areas:
  • Diabetes
  • Diabetes Complications
  • Diabetes Mellitus
  • Diabetes
  • Metabolic Bone Diseases
  • Pituitary Diseases
  • Thyroid Diseases

Education & Awards

Dr. Blackman graduated from UMDNJ Robert Wood Johnson, Piscataway. He has 3 awards.

Bridges to Excellence Recognition
Diabetes Care Recognition (2014 - 2016)
Level I
NCQA Diabetes Physician Recognition Program (2014 - 2017)
Top 10 Doctor - City (2014)
Columbus, OH


Dr. Blackman has 6 hospital affiliations:

  • Grant Medical Center 
  • Doctors Hospial 

Accepted Insurance Plans

Dr. Blackman accepts these health insurances in at least one office:

  • Aetna - 3 plans

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Additional Information
Where does Dr. John D. Blackman practice?
Dr. John Blackman practices Internal Medicine near Columbus, OH.
See Columbus Internists.