Diana S. Sunday, MD| Obstetrics And Gynecology | MedStar Health
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Diana S. Sunday

Diana S. Sunday, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (1418 reviews)

Specialties: Obstetrics And Gynecology

Languages: English

(301) 570-7425

About me

Diana Brill Sunday, MD, specializes in obstetrics and gynecology at MedStar Montgomery Medical Center, providing services to meet the needs of women of all ages, from prenatal and routine gynecologic care to surgical and nonsurgical treatments for a wide range of conditions.

Dr. Sunday earned her medical degree at the University of Virginia School of Medicine followed by a residency in obstetrics and gynecology at the University of Maryland Medical Center. During her residency, she took an interest in training in minimally invasive gynecologic surgery. She is board certified in general obstetrics and gynecology with the American Board of Obstetrics and Gynecology (ABOG) and is a Fellow of the American College of Obstetricians and Gynecologists. (FACOG).

Her professional affiliations currently include memberships with the American College of Obstetrics and Gynecology and the American Medical Association.

Conditions and procedures

Conditions I treat

  • Abnormal Breast Imaging
  • Abnormal Products Of Conception
  • Abnormal Urine Test Results
  • Abnormalities Of Forces Of Labor
  • Acquired Absence Of Female Genital Organs
  • Antenatal Screening Abnormalities
  • Bartholin's Gland Diseases
  • Breast And Lactation Disorders In Pregnancy
  • Breast Disorders
  • Breast Lump
  • Candidiasis
  • Cervix Uteri Disorders
  • Complications Of The Puerperium
  • Congenital Malformations Of Uterus And Cervix
  • Diabetes In Pregnancy
  • Disorders Of Amniotic Fluid And Membranes
  • Failed Induction Of Labor
  • False Labor
  • Female Genital Pain
  • Female Genital Tract Polyp
  • Female Infertility
  • Fetal Stress
  • Genitourinary Symptoms
  • Gestational Edema And Proteinuria Management
  • Gestational Hypertension
  • Herpes
  • Herpes (GENITAL HERPES)
  • High Risk Pregnancy
  • Hypertension In Pregnancy, Including Preeclampsia
  • Labor Complications And Umbilical Cord Problems
  • Late Pregnancy
  • Late Pregnancy Complications
  • Leiomyoma Of Uterus
  • Malignant Neoplasm Of Cervix Uteri
  • Maternal Care For Fetal Problems
  • Maternal Diseases
  • Menstrual Disorders
  • Multiple Gestations
  • Obstetric Trauma
  • Obstructed Labor
  • Ovarian Cysts And Benign Neoplasms
  • Ovarian Dysfunction
  • Ovary, Fallopian Tube And Broad Ligament Disorders
  • Perineal Laceration During Delivery
  • Placental Disorders
  • Polyhydramnios
  • Postpartum Hemorrhage
  • Pregnancy Hemorrhage
  • Pregnancy Hemorrhage And Placenta Previa
  • Pregnancy Nausea
  • Pregnant State
  • Premature Placenta Separation
  • Premature Rupture Of Membranes
  • Preterm Labor
  • Sexually Transmitted Diseases
  • Spontaneous Abortion
  • Tubal Pregnancy
  • Uterine And Vaginal Bleeding Abnormalities
  • Uterine Infections
  • Uterus Problems
  • Uti (URINARY TRACT INFECTION) During Pregnancy
  • Vagina And Vulva Inflammation And Infections
  • Vulva And Perineum Disorders
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Procedures I perform

  • Adhesiolysis
  • Amniocentesis
  • Basivertebral Nerve Ablation
  • Birth Control
  • Cervical Biopsy
  • Cervical Cerclage Removal
  • Cervical Conization With Leep
  • Cervical Cryotherapy
  • Cesarean Delivery
  • Chorionic Villus Sampling
  • Cone Biopsy
  • Contraceptive Device Insertion
  • C-Section
  • Cystometrogram
  • Delivery With Forceps
  • Delivery With Vacuum Extraction
  • Ectopic Pregnancy Surgery
  • Electrodesiccation And Curettage
  • Endometrial Ablation
  • Endometrial Biopsy
  • Endometriosis Surgery
  • Enterocele Repair
  • Episiotomy
  • Fallopian Tube Removal
  • Fertility Counseling
  • Fetal Heart Rate Monitoring
  • Fetal Monitoring
  • Fetal Ultrasound
  • Genetic Counseling
  • Gestational Carrier
  • Hormone Replacement Therapy
  • In Vitro Fertilization
  • Laparoscopic Hysterectomy
  • Mammography
  • Menstrual Disorder Treatment
  • Neonatal Dermatology
  • Neonatal Hypertension Treatment
  • Newborn Screening Tests
  • Oophorectomy
  • Ovarian Cyst Removal
  • Pap Smear
  • Pelvic Exam
  • Pelvic Floor Surgery
  • Pelvic Pain Treatment
  • Pelvic Ultrasound
  • Polycystic Ovary Syndrome Treatment
  • Postpartum Care
  • Pregnancy And Postpartum Massage
  • Pregnancy Checkup
  • Pregnancy Class
  • Pregnancy Complications Evaluation
  • Pregnancy Test
  • Pregnancy Ultrasound
  • Pregnancy With Uterine Rupture
  • Prenatal Care
  • Prenatal Checkup
  • Prenatal Follow-Up
  • Prenatal Monitoring
  • Prenatal Testing
  • Recurrent Miscarriage Treatment
  • Salpingo-Oophorectomy
  • Sonohysterography
  • Uterine Ablation
  • Uterine Artery Embolization
  • Uterine Fibroid Embolization
  • Vaginal Contraceptive Ring Removal
  • Vaginal Laser Rejuvenation
  • Vaginoplasty
  • Vulvar Biopsy
  • Water Birth
  • Yeast Infection Treatment
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Practice locations

Distance from Change Location Enter your Location

18101 Prince Philip Dr
Ste 5100
Olney, MD, 20832

301-570-7424
Get Directions

miles away

Fax 301-570-7425

2415 Musgrove Rd
Ste 209
Silver Spring, MD, 20904

301-384-4788
Get Directions

miles away

Fax 301-384-4789

501 N Frederick Rd
Ste 202
Gaithersburg, MD, 20877

301-208-2900
Get Directions

miles away

Fax 301-208-2908

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Videos

Education

Board Certification: American Board of Obstetrics and Gynecology, Obstetrics and Gynecology

Residency: University of Maryland Medical Center (2016)

Medical School: University of Virginia School of Medicine (2012)

Hospital affiliations

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.9
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.9
  • Provider included you in decisions

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • Jun 16, 2026

    Dr. Sunday was efficient and kind, reassuring and easy to talk to

  • Jun 4, 2026

    Dr. Sunday was amazing! She listened to my concerns, offered suggestions for over the counter products to work in combination with my prescription and scheduled a future procedure to rule out any issues and further assess my problem. She even checked her calendar and selected a date for the procedure before I checked out at the desk. She seemed personally interested in my care. A welcome and wonderful experience!!

  • May 29, 2026

    I was very happy with feeling listened to & genuine concern for the issues I brought up.