Dr. John Blackman, MD

Dr. John Blackman, MD

Endocrinology, Diabetes & Metabolism  |  
Male  |  
Age 59
(19)
Insurances AcceptedSave
Dr. John Blackman, MD is an endocrinology, diabetes & metabolism doctor who practices in Columbus, OH. He is 59 years old and has been practicing for 33 years. Dr. Blackman is affiliated with OhioHealth Grant Medical Center, Mount Carmel West and Riverside Methodist Hospital.

4882 E Main St Ste 210

Columbus, OH 43213

Contact Information

(614) 566-0610

Insurance Accepted

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

*Please verify this information when scheduling an appointment.

Learn about Dr. Blackman

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

new

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

Diabetes Type 1
very high
more than 99% of peers
Hashimoto's Disease
very high
more than 99% of peers
Thyroiditis
very high
more than 99% of peers

Dr. Blackman'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.

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1

Specialties

  • Endocrinology, Diabetes & Metabolism
2

Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
60

Conditions Treated

  • Abnormal Thyroid
  • Acromegaly and Gigantism
  • Adrenal Gland Diseases
  • Adrenal Incidentaloma
  • Adrenal Insufficiency
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Benign Tumor
  • Bone Disorders
  • Breast Diseases
  • Calcium Metabolism Disorders
  • Cancer
  • Congenital Adrenal Hyperplasia (CAH)
  • Craniopharyngioma
  • Diabetes Insipidus
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Ketoacidosis
  • Diabetic Macular Edema (DME)
  • Diabetic Retinopathy
  • Female Infertility
  • Goiter
  • Graves' Disease
  • Growth Hormone Deficiency
  • Gynecomastia
  • Hashimoto's Disease
  • Hyperaldosteronism
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypoglycemia
  • Hypokalemia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hyposmolality and Hyponatremia
  • Hypothyroidism
  • Kidney Disease
  • Klinefelter Syndrome
  • Lipid Disorders
  • Malaise and Fatigue
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Multiple Endocrine Neoplasia
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Pheochromocytoma
  • Polycystic Ovarian Syndrome
  • Retina Diseases
  • Rickets
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Cyst
  • Thyroid Disease
  • Thyroiditis
  • Vitamin D Deficiency

More

Read More
1

Procedures

  • Diabetes Counseling

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for Ohio.

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.

Education

  • University Of Medicine and Dentistry Of New Jersey / Robert Wood Johnson Medical School
    Medical School | Graduated 1984
  • Cleveland Clin Hosp
    Residency Hospital | Completed
  • University Of Chicago
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Blackman has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Blackman's Reviews

Likelihood of recommending Dr. Blackman to family and friends
4.4
based on 19 total reviews (4 with comments)
Dr. Blackman's Performance
  • Trustworthiness
    EXCELLENT
  • Explains condition(s) well
    EXCELLENT
  • Answers Questions
    EXCELLENT
  • Time well spent
    EXCELLENT
Office & Staff Performance
  • Scheduling
    VERY GOOD
  • Office environment
    EXCELLENT
  • Staff friendliness
    EXCELLENT
  • Average wait time
    10 to 15 minutes
Patient Comments (4)
in Columbus |
Dr. Blackman is the best Physician I have ever had. He is patient, an active listener, and makes me feel like I am involved in my own treatment. His bedside manner is amazing. I wish all physicians treated their patients the way he does.
Columbus , OH |
Let's talk about my long journey as Dr. Blackman's patient. I have seen Dr. Blackman for over seven years now and have been trying to be treated for Hashimoto's. Dr. Blackmans is a nice person, yes, but he has failed me in more ways than I could ever imagine. The only thing that he cares about is my TSH and T4 levels and outside of that he has no concern for anything else. His nurse Terie is incredibly disrespectful and has actually laughed at my concerns before.
in Columbus, OH |
Dr.Blackman has treated me for 15 years.He is consistently kind, and actively listens to all my concerns about my health.He provides me with guidance and expertise in managing Type 1 diabetes and other disorders.Dr.Blackman utilizes a team approach, talking with me and validating my input.He goes over and above the call of duty to ensure that I receive the best health care that is possible. I highly recommend Dr. Blackman to anyone seeking excellent care from an endocrinologist.
in Columbus, OH |
I feel Very confident in his ability as a doctor. He has a nice manner. I don't feel like i am treated like an adult, and i come away with a sense of renewed hope about my diabetes.
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Visit Dr. Blackman

Now Accepting New Patients
Dr. Blackman accepts 8 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Anthem Blue Cross Blue Shield
    Anthem Blue Cross Blue Shield HMO
    Anthem Blue Cross Blue Shield PPO
  • Blue Cross Blue Shield
    Blue Card PPO
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • Coventry Health Care
    Coventry Health America PPO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Humana
    Choice Care PPO
  • MultiPlan
    MultiPlan PPO

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Blackman has admitting privileges

Mount Carmel West
793 W State St
Columbus, OH 43222
View Hospital Profile
OhioHealth Grant Medical Center
111 S Grant Ave
Columbus, OH 43215
View Hospital Profile
Riverside Methodist Hospital
3535 Olentangy River Rd
Columbus, OH 43214
View Hospital Profile

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