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Karin J Blakemore, M.D.

Headshot of Karin J Blakemore
  • Director, Prenatal Genetics, Prenatal Diagnostic Center
  • Professor of Gynecology and Obstetrics


Fetal Ultrasound, Gynecology and Obstetrics, Hematologic Disorders in Pregnancy, Human Genetics, Maternal and Fetal Medicine, Medical Genetics-Inherited Disorders, Obstetrics more

Research Interests

Fetal genetic disorders; Prenatal Diagnosis and Fetal Treatment; In Utero Hematopoietic Stem Cell Transplantation; Hemoglobinopathies; Red cell and platelet alloimmunization; Intrapartum physiology and outcomes; Placental development and abnormalities more

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Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 443-997-0400
10753 Falls Road
Johns Hopkins Women's Center, Pavilion II, Suite 245
Lutherville, MD 21093 map
Phone: 443-997-0400 | Fax: 410-367-3312

The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-502-3200
1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-502-3200


Karin Blakemore, M.D., is the director of prenatal genetics at the prenatal diagnostic center in the Johns Hopkins Department of Gynecology and Obstetrics, and she is a member of the McKusick-Nathans Institute of Genetic Medicine. Her areas of clinical expertise include fetal imaging and fetal genetic disorders. Dr. Blakemore also serves as a professor of oncology and of gynecology and obstetrics in the Johns Hopkins University School of Medicine. 

Dr. Blakemore earned her medical degree from the University of Toledo’s College of Medicine. She completed her residency at New York University Medical Center and performed fellowships in genetics at Yale University School of Medicine and in maternal and fetal medicine at Washington University School of Medicine. 

She holds certifications in clinical genetics, maternal and fetal medicine, and obstetrics and gynecology. Her research interests include in utero bone marrow transplantation, hemoglobinopathies, red cell and platelet alloimmunization, intrapartum physiology and outcomes, and placental development and abnormalities. 

Dr. Blakemore serves on the editorial board of Fetal Diagnosis and Therapy and The Journal of Maternal-Fetal & Neonatal Medicine. She is also a member of the Maternal-Fetal Medicine Network Units Advisory Board for the National Institute of Child-Health and Human Development. She serves on the committee on ethics for the American College of Obstetricians and Gynecologists and on the board of directors for the Society for Maternal-Fetal Medicine. more


  • Director, Prenatal Genetics, Prenatal Diagnostic Center
  • Professor of Gynecology and Obstetrics
  • Professor of Oncology

Departments / Divisions

Centers & Institutes



  • MD; Medicine; University of Toledo College of Medicine and Life Sciences (1978)


  • Obstetrics and Gynecology; New York University Medical Center (1982)


  • Maternal & Fetal Medicine; Washington University School of Medicine in St Louis (1987)
  • Genetics; Yale School of Medicine (1985)

Board Certifications

  • American Board of Medical Genetics and Genomics (Clinical Genetics (MD)) (1984)
  • American Board of Obstetrics and Gynecology (OB/GYN-Maternal Fetal Medicine) (1990)
  • American Board of Obstetrics and Gynecology (Obstetrics And Gynecology) (1988)

Research & Publications

Activities & Honors


  • Fetal Diagnosis and Therapy 
    Editorial Board Member
  • Journal of Maternal-Fetal and Neonatal Medicine
    Editorial Board Member
  • National Institute of Child Health and Human Development 
    Member, Maternal-Fetal Medicine Network Units Advisory Board
  • The American College of Obstetricians and Gynecologists 
    Member, Committee on Ethics
  • The Society for Maternal-Fetal Medicine 
    Board of Directors
  • Working Group 3 - Discussion of Ethical, Legal and Social Issues, Prenatal Gene Transfer: Scientific, Medical and Ethical Issues, The Third Gene Therapy Policy Conference, National Institutes of Health 

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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