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 (1287 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

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

18101 Prince Philip Dr
Ste 5100
Olney, MD, 20832

301-570-7424

Fax 301-570-7425

Get Directions

miles away

Fax 301-570-7425

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