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Katrina S. Mark, MD, FACOG

Academic Title:

Associate Professor

Primary Appointment:

Obstetrics, Gynecology and Reproductive Sciences

Education and Training

Allegheny College, B.S.

Temple University School of Medicine, M.D.

University of Maryland Department of Obstetrics, Gynecology and Reproductive Sciences, Residency Training


Dr. Mark is an Obstetrician and Gynecologist who holds dual Board Certifications in Obstetrics and Gynecology as well as Addiction Medicine.

Her research and clinical interests center around the intersection of reproductive health and substance use/abuse. She is the Medical Director of the University of Maryland Women's Health Center at Penn and the Director of the Substance Use in Pregnancy and Parenting Outpatient Recovery and Treatment (SUPPORT) practice.

In addition to her obstetric practice, she has an ambulatory gynecology practice at the University of Maryland where she cares for people with gynecologic needs throughout their lifespans. She performs gynecologic surgeries at the University of Maryland Downtown and Midtown Campuses as well as the Veteran's Administration Hospital in Baltimore, Maryland. 

Research/Clinical Keywords

substance use in pregnancy, smoking cessation, marijuana

Highlighted Publications

Mark K, Farquhar B, Chisolm M, Coleman-Cowger V, Terplan M. Knowledge, attitudes, and practices of electronic cigarette use in pregnancy. Journal of Addiction Medicine, 2015; July-Aug; 9(4): 266-272.

Mark K, Desai A, Terplan M. Marijuana use and pregnancy: prevalence, associated characteristics and birth outcomes. Archives of Women’s Mental Health, 2016; Feb; 19(1): 105-111..

Mark K, Gryczynski J, Axenfeld E, Schwartz RP, Terplan M. Pregnant women’s current and intended cannabis use in relation to their views toward legalization and knowledge of potential harm. Journal of Addiction Medicine, 2017; 11(3): 211-216.

Mark K, Terplan M. Cannabis and pregnancy: Maternal child health implications during a period of drug policy liberalization. Prev Med, 2017, Nov; 104:46-49.

Coleman-Cowger V, Oga E, Peters E, Trocin K, Koszowski B, Mark K. Prenatal screening for substance use: Comparing diagnostic validity of three screeners among pregnant women. Obstetrics and Gynecology, 2019; 133(5): 952-961.

Mark K, Pierce E, Joseph D, Crimmins S. Interaction with the justice system and other factors associated with pregnant women’s self-report and continuation of use of marijuana. Drug Alcohol Dep, 2020, 206, 107723..

Mark K, Tenorio B, Stennett C, Ghanem K, Brotman R. Bacterial vaginosis diagnostic and treatment practices in post-menopausal women: A survey of clinical practices. Menopause, 2020; 27(6): 679-683..

Mark K, Khan A, Terplan M. Cannabis use as determined by biologic testing in maternal and newborn urines during a period of drug liberalization. Substance Use and Misuse, 2020; 55(8): 1343-1346..

Heisler C, Mark K, Temkin S. Be the change you wish to see: cultivating gender equity. Am J of Obstet Gynecol, 2021; 224(3): 334-335.

Mark K, Pace L, Temkin S, Crimmins S, Terplan M. Concordance and discordance between maternal and newborn drug tests. Am J Obstet Gynecol MFM, 2021; 3(4): 100366.

Avalos C, Dula Razzolini G, Crimmins S, Mark K. Opioid prescription use after cesarean delivery: An observational cohort study. J Anesth, 2021; 35(5): 617-624.

Mark K, Otieno L, Moore E, Zehra A, Mitchell M. Association between continued cannabis use during pregnancy and symptoms of anxiety and depression. Int Rev Psychiatry, 2021 ; 33(6): 528-533.

Mark K, Saini J, Qato D. Serious psychological distress and cannabis use among pregnant women in the United States: Findings from the National Survey on Drug Use and Health, 2015- 2018. Drug Alcoh Depend, 2021; 229(Pt A): 109116.

Additional Publication Citations

For a full, up to date list of publications:

In the News


Breast Self Exam Debate Finally Settled. Interview, SHAPE Magazine., 2014

Breast Self-Exam: More Blame for Women? Interview, NBC News., 2014

Morning sickness and marijuana trend draws eyes at the Capitol. Interview, The Colorado Independent., 2015

Doctors should urge against pot use in pregnancy: Guidelines. Interview, HealthDay., 2015

Pot during pregnancy linked to poor fetal outcomes. Interview, Medpage Today., 2016

The pitfalls of studying pot use in pregnancy. Interview, Medpage Today., 2016

Direct Connection: Cervical Health Awareness. Interview, Maryland Public Television., 2017

Is smoking pot during pregnancy safe? Interview, Fox News., 2017

Cannabis made me a better parent: One mom’s confession, 2017

Trump administration rolls back ACA contraceptive coverage rule, 2017

Marijuana shops recommend marijuana products to pregnant women, despite doctors' warnings, 2018

Drug combination better for restoring womb after miscarriage, 2018

Rising rates of marijuana use among pregnant women spark concern., 2019.

Dispensaries think week is safe to treat morning sickness. It’s not., 2019.

Pregnant women are using cannabis as a remedy, but doctors raise concerns: Interview, NBC nightly news:, 2019.

Women increasingly turn to CBD, with or without doctors’ blessings:, 2020.

New call-in line in Maryland helps doctors treat pregnant women with addictions:

Professional Activity

Consultant, Maryland Addiction Services for MOMs 

Medical Co-Director, Center for Substance Use in Pregnancy

Director, Substance Use in Pregnancy Outpatient Recovery and Treatment program

Links of Interest

Center for Substance Use in Pregnancy (Research):


Substance Use in Pregnancy and Parenting Outpatient Recovery and Treatment (SUPPORT) (Clinical):


Maryland Addiction Services (MACS for MOMs) - support for clinicians caring for pregnant people with substance use disorder:


HEALthy Brain Child Development study (Grant):