Penn Medicine Provider
Maternal Fetal Medicine
Matthew Kelly Janssen, MD
Accepting new patients
Sees patients age 18 and up
Penn Maternal Fetal Medicine HUP
View 4 additional locations

About me

  • Assistant Professor of Clinical Obstetrics and Gynecology

Education and training

  • Medical School: Saint Louis University - School of Medicine
  • Residency: Pennsylvania Hospital
  • Fellowship: Hospital of the University of Pennsylvania

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Princeton Medical Center: Has privileges to treat patients in the hospital.
Dr. Janssen is a Penn Medicine physician. In New Jersey, providers are affiliated with Penn Medicine through Clinical Health Care Associates of New Jersey or Princeton Healthcare Affiliated Physicians, PC.

Qualifications and experience

Treatments and Conditions

My research

Hong CX, Masteling M, Zhou CG, Janssen MK, Triebwasser JE Differences in time of birth between spontaneous and operative vaginal births. , Am J Perinatol, 42(7):962-964: 2025


Janssen MK, Forkpa M, Weiss D, Schwartz N Trajectory analysis of prenatal urinary tract dilation and risk of postnatal surgery. , Poster Presentation, Society for Maternal Fetal Medicine 42nd Annual Pregnancy Meeting, Denver, CO: 2025


Zhou CG, Hong CX, Masteling M, Janssen MK, Hamm RF Racial disparities in cesarean deliveries without trial of labor: a population-based analysis of birth timing. , Poster Presentation, Society for Maternal Fetal Medicine 42nd Annual Pregnancy Meeting, Denver, CO: 2025


Lam-Rachlin J, Punn R, Behera SK, Geiger M, Lachaud M, David N, Garmel S, Janssen MK, Sylvester K, Kennedy J, Spiegelman J, Heiligenstein MA, Rebarber A, Devore GR, Zelop CM, Besis R, Levy M, Stos B, DeBoisredon M, Askinazi E, Thorey V, Gardella C, Arunamata A AI Significantly Improves Detection of Prenatal Ultrasounds Suspicious for Major Congenital Heart Defects by OBGYN/MFMs , Oral Abstract Presentation, Society for Maternal Fetal Medicine Pregnancy Meeting 2025: 2025


Bromwich KA, Rush M, Janssen MK, Hirshberg A Spontaneous hemorrhage of peripheral neurofibroma in pregnancy: A case report. , J Case Reports and Images Obstet Gynecol, 10(1): 2024


Janssen MK, Koelper N, Weatherby M, Werth C, Schwartz N Evaluation of Non-Compressive Transvaginal Cervical Elastography as a Quantitative Imaging Biomarker in Pregnancy: A Repeatability and Reliability Analysis. , J Ultrasound Med, 43(1): 2024,33-43


Janssen MK, Levine LD, Bromley B, Chasen ST, Russo ML, Roman AS, Limaye MA, Ranzini AC, Clifford CM, Biggio JR, Subramanian A, Seasley A, Patil AS, Weed S, Page JM, Nicholas S, Idler J, Rao R, Crowder A, Shree R, McLennan G, Dugoff L; Twin Cell-Free DNA Study Consortium Clinical implications of crown-rump length discordance at 11 to 14 weeks in dichorionic twins. , Am J Obstet Gynecol, 230(1): 2024,83.e1-83.e11


Janssen MK, Levine LD, Dugoff L Prenatal diagnostic testing decisions in twin pregnancies in the era of cell-free DNA , Poster presentation, Society for Maternal Fetal Medicine 43rd Annual Pregnancy Meeting, San Francisco California: 2023


Janssen MK, Koelper N, Weatherby M, Werth C, Schwartz N Intra- and inter-rater reliability for transvaginal cervical strain elastography , Poster Presentation, Society for Maternal Fetal Medicine 43rd Annual Pregnancy Meeting, San Francisco California: 2023


Janssen MK, Levine LD, Dugoff L Clinical implications of first-trimester crown-rump length discordance in dichorionic twin gestations , Poster Presentation, Society for Maternal Fetal Medicine 43rd Annual Pregnancy Meeting, San Francisco California: 2023