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

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

4.9 out of 5 (1294 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

  • Abortion
  • Adhesiolysis
  • Amniocentesis
  • Basivertebral Nerve Ablation
  • Birth Control
  • Celiac Plexus Block
  • Cervical Biopsy
  • Cervical Cerclage Removal
  • Cervical Conization With Leep
  • Cervical Cryotherapy
  • Cesarean Delivery
  • Chorionic Villus Sampling
  • Colposcopy
  • Cone Biopsy
  • Contraceptive Device Insertion
  • C-Section
  • Cystometrogram
  • Delivery With Forceps
  • Delivery With Vacuum Extraction
  • Donor Sperm Insemination
  • Ectopic Pregnancy Surgery
  • Egg Freezing For Transgender Individuals
  • Electrodesiccation And Curettage
  • Embryo Transfer
  • Endometrial Ablation
  • Endometrial Biopsy
  • Endometriosis Surgery
  • Enterectomy
  • Enterocele Repair
  • Enteroscopy
  • Episiotomy
  • Fallopian Tube Removal
  • Fertility Counseling
  • Fetal Heart Rate Monitoring
  • Fetal Monitoring
  • Fetal Ultrasound
  • Ganglion Cyst Excision
  • Genetic Counseling
  • Geriatric Pelvic Floor Physical Therapy
  • 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
  • Pediatric Well Visit
  • 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
  • Sterilization
  • Total Proctocolectomy
  • Tubal Ligation
  • 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 LocationEnter your Location

18101 Prince Philip Dr
Ste 5100
Olney, MD, 20832

301-570-7424

Fax 301-570-7425

Get Directions

miles away

Fax 301-570-7425

501 N Frederick Rd
Ste 202
Gaithersburg, MD, 20877

301-208-2900

Fax 301-208-2908

Get Directions

miles away

Fax 301-208-2908

2415 Musgrove Rd
Ste 209
Silver Spring, MD, 20904

301-384-4788

Fax 301-384-4789

Get Directions

miles away

Fax 301-384-4789

Insurance

MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • Aetna Medicare Advantage PFFS Plan
    • Amerigroup DC Healthy Families
    • United Healthcare Choice
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • Aetna Medicare Advantage HMO & PPO Plans
    • Anthem BCBS of VA HealthKeepers (HMO)
    • Kaiser Permanente Signature - Added Choice
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • Aetna Managed Choice Open Access (POS)
    • IH-Open HMO
    • CareFirst MedStar PPO
    • M.D. IPA (HMO)
    • Alterwood Advanatge HMO & DSNP Plans
    • Private Health Care Systems (PPO)
    • Aetna VA Exchange
    • IH-PPO
    • Optimum Choice
    • United Healthcare Navigate Cardiac Global
    • Kaiser Permanente Medicare Plus
    • United Student Resources
    • Network OA
    • United Healthcare Choice Plus
    • IH-POS
    • United HealthCare Community Plan - Maryland Health Choice Program
    • HumanaChoice Honor's plan PPO
    • Jai Medical Systems - Maryland Health Choice
    • Select HMO/HealthFund/Health Network
    • Johns Hopkins Advantage MD HMO
    • Beech Street PPO
    • Kaiser Permanente Medicare Advantage Signature and Select
    • Cigna Alliance Medicare (HMO)
    • Humana Medicare Advantage - HMO Open Access
    • CareFirst FEP Blue Focus
    • CareFirst NASCO
    • Kaiser Permanente Select - Added Choice
    • Aetna Premier 200PD
    • Anthem BCBS Medi Blue Dual Adv
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • OA Plus
    • CIGNA SureFit (HMO)
    • Aetna Advantage 6350
    • Cigna Preferred Medicare (HMO)
    • CIGNA Indemnity
    • AMERIVANTAGE/Amerigroup Community Care
    • Tricare Reserve Select
    • Choice Care Network/HUMANA (PPO)
    • United Healthcare Choice Cardiac Global
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • TriWest Healthcare Alliance
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • Maryland Physicians Care MCO
    • CIGNA HMO Open Access
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • Aetna Student Health Insurance
    • United Healthcare Select HMO - EPO/NPP
    • CareFirst Blue Card Program
    • Kaiser Permanente Select Cardiac Global
    • IH-Open EPO Plus
    • United Healthcare Choice Plus Cardiac Global
    • BlueChoice Open Access
    • IH-Network Only Plus
    • Anthem Federal Employee Program Basic
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Private Fee-for-Service Plans (PFFS)
    • Anthem Federal Employee Program Standard
    • UnitedHealthcare Individual Exchange Plans
    • IH-Open HMO Option
    • Lasso Healthcare - Medicare Medical Savings Account
    • Anthem BCBS Medi Blue SNP
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Great-West Healthcare POS/CIGNA
    • CareFirst Dual Prime HMO-SNP
    • CareFirst MedStar Select PPO
    • Optima Family Care MCO - VA Medicaid MCO
    • WellPoint Maryland - Maryland Health Choice
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • CareFirst Group Medicare Advantage
    • CareFirst BlueChoice HMO
    • MedStar Family Choice DC Healthy Families
    • Coventry Health Care of Virginia
    • Cigna True Choice Plus Medicare (PPO)
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • TRICARE for Life East
    • HealthyBlue PPO
    • CIGNA HMO & Network (HMO)
    • IH-Open Network Only Plus
    • Aetna Elect Choice/ Open Access (POS)
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Employee Health Plan
    • Humana Medicare Advantage - PPO
    • Aetna Classic 3500
    • CareFirst Blue Preferred PPO
    • Choice POS II
    • Police and Fire Clinic
    • Magellan Complete Care of VA - VA Medicaid MCO
    • POS OA
    • Anthem BCBS Medi Blue Plus
    • IH-Open POS Plus
    • Johns Hopkins Advantage MD PLUS PPO
    • Medicare Direct
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • HumanaChoice PPO
    • Choice Fund PPO
    • AmeriHealth Caritas DC Healthcare Alliance
    • IH-POS Plus
    • Optimum Choice Preferred (POS)
    • Aetna Traditional Choice (PPO)
    • Core Essential (HMO)
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • CareFirst Maryland Point of Service Plan
    • Aetna Advantage 5750
    • Aetna Managed Choice (POS)
    • CIGNA Connect EPO
    • CIGNA PPO Plus
    • Geisinger Medicare Advantage
    • DC/MD SHOP QHP Small Business Plans
    • United Healthcare Community Plan - VA Medicaid MCO
    • UHC Passport
    • OCI Direct (HMO)
    • Kaiser Maryland Medicaid MCO
    • IH-Indemnity
    • Aetna Basic
    • Aetna Signature Administrator PPO/TPA
    • Aetna Advantage 6350PD
    • M.D. IPA Preferred (POS)
    • Anthem BCBS of VA HealthKeepers Plus
    • Amerigroup DC Alliance
    • HighMark
    • Cigna TotalCare (HMO D-SNP)
    • CareFirst Community Health Plan of MD
    • Sentara Health
    • CIGNA PPO
    • CareFirst Administrators
    • MedStar Family Choice DC Healthcare Alliance
    • Aetna HMO
    • United Healthcare Options (PPO)
    • Johns Hopkins Advantage MD PPO
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • CIGNA EPO
    • Choice POS II Open Access
    • Choice POS
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • Navigate
    • Humana Gold Plus HMO
    • TRICARE East Prime
    • NYC Medicare Advantage Plus
    • Healthy Blue (HMO, POS)
    • Aetna Better Health of VA
    • Medicare Advantage - Advantra Value (PPO)
    • Kaiser Permanente Select
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • CareFirst (NCA) Indemnity
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • Aetna Worker's Compensation Network
    • Aetna Open Choice (PPO)
    • Cigna True Choice Medicare (PPO)
    • IH-Open POS II
    • Blue Choice Advantage
    • Medicare FFS
    • Aetna Quality Point of Service (POS)
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • Kaiser Permanente Flexible Choice 3-tier POS
    • MedStar Family Choice - Maryland Health Choice
    • TRICARE East Select
    • IH-HMO
    • Coventry Health Care National Network PPO
    • Priority Partners - Maryland Health Choice
    • First Health PPO
    • CIGNA POS/Network POS
    • Options PPO Cardiac Global
    • United Healthcare Select Plus (POS)
    • MultiPlan, Inc
    • AmeriHealth Caritas DC Healthy Families
    • Kaiser Permanente Signature
    • Aetna Better Health of MD
    • CareFirst Blue Choice Opt Out Open Access
    • Mamsi Life & Health (Indem./PPO)
    • United Medicare Private Fee-for-Service (PFFS) plans
    • IH-EPO Plus
    • Advantra Platinum (PPO)
    • Uniformed Services Family Health Plan
    • Cigna Achieve Medicare (HMO C-SNP)
    • CareFirst EPO
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • Veterans Affairs Community Care Network
    • CareFirst Maryland Indemnity or PPO
    • First Health PPO
    • Health Services for Children with Special Needs
    • Aetna Classic 5000PD
    • Erickson Advantage Plans
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Aetna Classic 5000
    • Coventry of Delaware HMO/PPO

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
  • Dec 30, 2025

    This was my first appointment with Dr. Sunday as I was a new patient. She listened to my concerns and explained everything during the pelvic exam & pap smear. I really liked her demeanor, she was very empathetic. In summary, I'm very happy I chose her as my doctor and would highly recommend her.

  • Dec 29, 2025

    Dr. Diana provides quality work and care.

  • Dec 16, 2025

    Dr. Sunday is always very attentive to any questions or concerns. She always allows plenty of time to cover any questions.