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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

Patient comments (8)

The overall average patient rating of Dr. Brett Cassidy is Excellent. Dr. Cassidy has been reviewed by 25 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.9
Promptness 4.7
Courteous Staff 4.7
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Brett Cassidy, FACOG, MD is board certified in Obstetrics & Gynecology.

  • He has special expertise in 3 areas:
  • Hot Flashes
  • Low risk OBHigh risk OBVBACCesarean sectionDiabetes in pregnancyGenetic testingTwin pregnancyGeneral gynecologyUrinary incontinence testingTVT procedureEssure procedureNovasure procedureEndometrial ablationMinimally invasive gynecological surgeryComplete laparoscopic hysterectomyMyomectomyEndometriosisChronic pelvic painAbnormal pap smearsInterstitial cystitisIrregular mentrual bleedingOvarian cystsRecurrent vaginal infectionsVaginitisFibroidsUrinary incontinencePelvic prolapseCystoceleRectoceleInfertilityDysfunctional uterine bleedingPainful periodsFamily planningContraceptive managementBirth controlLAVHSexually transmitted infectionsHormone replacementPolycystic ovarian syndromeOsteoporosisColposcopyLaparoscopyPremenstrual syndromeMenopausePerimenopauseGenital herpesSexuality and sexual problemsEndometrial hyperplasiaPostmenopausal bleedingVulvodyniaMirena IUDParaguard IUDTubal ligationBotoxRestylaneRadiesseJuvedermDermal fillersSclerotherapyLaser hair removalMicrodermabrasionPhotofacialChemical peelsVein treatmentAcne treatmentMedical weight managementB12 injectionsBody fat analysisMedical skin care productsNutritional supplements
  • Menopause

Education & Awards

Dr. Cassidy graduated from Emory University , Atlanta. He has 3 awards.

Patients' Choice Award (2008 - 2011, 2013 - 2015)
Compassionate Doctor Recognition (2009 - 2011, 2013 - 2015)
On-Time Doctor Award (2014 - 2015)


Dr. Cassidy has 8 hospital affiliations:

  • Edward Hospital 
  • Kishwaukee Community Hospital 


  • English

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Additional Information
Dr. Brett James Cassidy FACOG and MD is a male Obstetrician & Gynecologist, has 14 years of experience and practices in Obstetrics & Gynecology.
Where does Dr. Brett J. Cassidy practice?
Dr. Brett Cassidy has 3 office locations.
Dr. Brett Cassidy practices Obstetrics & Gynecology near Yorkville, IL.
Additional practice locations include: Plainfield, IL and Sandwich, IL.
See Yorkville Obstetricians & Gynecologists.