Mary Jane M. Reen, MD| Pediatrics, Pediatric Hospital Medicine | MedStar Health
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Mary Jane M. Reen

Mary Jane M. Reen, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (189 reviews)

Specialties: Pediatrics, Pediatric Hospital Medicine

Languages: English

Clinical areas of focus

  • Chronic Cough Treatment
  • Chronic Headache Treatment
  • Ear Infection Treatment
  • Gastroesophageal Reflux Disease
  • Geriatric Sleep Disorder Treatment
  • Mental Health Support During Pregnancy
  • Milk Allergy Treatment
  • Newborn Feeding Problems
  • Newborn Feeding Support
  • Sleep Disorders
  • Vision Screening
  • Wellness Exams
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Conditions and procedures

Conditions I treat

  • Abdomen, Lower Back, Pelvis, And Genital Injury
  • Abdominal Pain
  • Abnormal Breathing
  • Abnormal Drug Findings In Blood
  • Abnormal Function Study Results
  • Abnormal Movements
  • Acne
  • Acute Laryngitis And Tracheitis
  • Acute Sinusitis
  • Adult And Child Abuse, Neglect And Maltreatment
  • Adverse Effects
  • Allergic Contact Dermatitis
  • Allergy Status To Drugs And Substances
  • Ankle And Foot Injury
  • Appearance And Behavior Symptoms
  • Artificial Openings Complications
  • Asthma
  • Bacterial Agents
  • Bacterial Pneumonia
  • Birth Defects Due To Maternal Conditions
  • Bone Disorders
  • Bronchiolitis
  • Candidiasis
  • Child Speech Disorders
  • Chronic Diseases Of Tonsils And Adenoids
  • Cleft Lip And Palate
  • Cognitive Function Disorders
  • Complications Of Infusion, Transfusion And Injection
  • Conditions Of Integument Specific To Newborn
  • Congenital Anomalies
  • Congenital Anomalies Of The Kidney
  • Congenital Deformities Of Hip
  • Congenital Infectious And Parasitic Diseases
  • Congenital Malformation Syndromes Affecting Multiple Systems
  • Congenital Malformations Of Ear
  • Congenital Malformations Of Eyelid, Lacrimal Apparatus And Orbit
  • Congenital Malformations Of Face And Neck
  • Congenital Malformations Of Gallbladder, Bile Ducts And Liver
  • Congenital Malformations Of Intestine
  • Congenital Malformations Of Larynx
  • Congenital Malformations Of Male Genital Organs
  • Congenital Malformations Of Pharynx
  • Congenital Malformations Of Skin
  • Congenital Malformations Of Skull And Face Bones
  • Congenital Malformations Of Trachea And Bronchus
  • Congenital Malformations Of Urinary System
  • Congenital Musculoskeletal Deformities Of Head, Face, Spine And Chest
  • Congenital Obstructive Defects Of Renal Pelvis
  • Contact With Communicable Diseases
  • Convulsions
  • Cradle Cap (SEBORRHEIC DERMATITIS)
  • Crohn's Disease [Regional Enteritis]
  • Deforming Dorsopathies
  • Dermatitis Due To Substances
  • Dermatophytosis (RINGWORM)
  • Developmental Delays
  • Disorders Of Carbohydrate Metabolism
  • Disorders Of Puberty
  • Disorders Of Tooth Development And Eruption
  • Disturbances Of Cerebral Status Of Newborn
  • Eating Disorders
  • Eccrine Sweat Disorders
  • Eczema (ATOPIC DERMATITIS)
  • Emotional Disorders
  • Emotional State Symptoms
  • Epilepsy And Seizures
  • Erythematous Conditions
  • Eyelid Disorders
  • Family History Of Disabilities And Chronic Diseases
  • Feeding Problems In Newborns
  • Fever
  • Fungal Infections
  • Fungal Otitis Externa
  • General Symptoms
  • Genitourinary Symptoms
  • Hand And Wrist Fracture
  • Head Injury
  • Hemangioma
  • Hereditary Hemolytic Anemias
  • Herpes
  • Hydrocephalus
  • Hypothermia Of Newborn
  • Immunization Not Carried Out And Underimmunization Status
  • Impetigo
  • Intestinal Infections
  • Joint Disorder
  • Knee And Leg Open Wound
  • Lacrimal Gland Disorders
  • Limb Deformity
  • Lower Leg And Ankle Fracture
  • Lower Leg Injury
  • Menstrual Disorders
  • Mesothelioma
  • Middle Ear Disorders
  • Migraine
  • Nasopharyngitis
  • Nervous And Musculoskeletal Symptoms
  • Neutropenia
  • Newborn Affected By Complications Of Placenta, Cord And Membranes
  • Newborn Complications From Labor And Delivery
  • Newborn Feeding Problems
  • Newborn Hypoglycemia
  • Noninfective Gastroenteritis
  • Nonsuppurative Otitis Media
  • Obstructive And Reflux Uropathy
  • Paralytic Strabismus
  • Penis Disorders
  • Perinatal Digestive System Disorders
  • Personal History Of Diseases And Conditions
  • Personal Risk Factors
  • Persons Encountering Health Services
  • Pervasive Developmental Disorder
  • Phakomatoses
  • Problems Related To Education And Literacy
  • Problems Related To Lifestyle
  • Problems Related To Primary Support Group
  • Protozoal Diseases
  • Pulmonary Heart Disease
  • Relapsing Fevers
  • Respiratory Conditions
  • Respiratory Failure In Newborn
  • Scarlet Fever
  • Scholastic Skills Disorder
  • Scoliosis
  • Shoulder Fracture
  • Sickle
  • Skin Thickening
  • Sleep Disorders
  • Spinal Osteochondrosis
  • Subclinical Hypothyroidism
  • Syncope
  • Thalassemia
  • Urological Disorders
  • Viral Infection
  • Vision Disturbances
  • Vomiting And Nausea
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Procedures I perform

  • Absence Management
  • Acute Illness Treatment
  • Adhd Assessment
  • Adoption Evaluation
  • Adult Day Care Evaluation
  • Asthma Management
  • Balance And Coordination Training
  • Binge Eating Disorder Treatment
  • Body Mass Index (BMI) Evaluation
  • Bone Health Evaluation
  • Breastfeeding Assistance
  • Cardiovascular Health Promotion
  • Cerebral Palsy Management
  • Child Care
  • Child Custody Evaluation
  • Chronic Cough Treatment
  • Chronic Headache Treatment
  • Cognitive Development Evaluation
  • Community Health Education
  • Counseling For Mental Health
  • Daycare Physical
  • Disease Prevention Education
  • Down Syndrome Treatment
  • Ear Infection Treatment
  • Ear Piercing
  • Electrocardiogram
  • Endocrinology Care
  • Gastroesophageal Reflux Disease
  • Geriatric Sleep Disorder Treatment
  • Health Promotion Counseling
  • Holter Monitoring
  • Immunization Administration
  • Injury Treatment
  • Lactation Consultation
  • Learning Disability Evaluation
  • Long Leg Splint Application
  • Low Vision Therapy
  • Mental Health Assessment
  • Mental Health Medication Management
  • Mental Health Support During Pregnancy
  • Milk Allergy Treatment
  • Mole Removal
  • Nebulizer Therapy
  • Neonatal Circumcision
  • Neurodevelopmental Disorder Evaluation
  • Newborn Care
  • Newborn Feeding Support
  • Newborn Initial Hospital Care
  • Newborn Screening Tests
  • Nutrition Counseling
  • Orthopedic Physical Therapy
  • Orthotic Device Fitting
  • Orthotics Fitting
  • Pain Medication Management
  • Pancreatic Disease Management
  • Pediatric Autism Screening
  • Pediatric Sick Visit
  • Pink Eye (CONJUNCTIVITIS) Treatment
  • Poison Prevention
  • Prenatal Lactation Education
  • Pulmonary Function Tests
  • Safety And Injury Prevention Counseling
  • School Physical
  • Skin Allergy Testing
  • Skin Tag Removal
  • Speech Audiometry With Tympanometry
  • Speech Therapy
  • Sports Physicals
  • Staple Removal
  • Substance Abuse Education
  • Suture Removal
  • Swallowing Disorder Treatment
  • Therapeutic Activities
  • Therapeutic Exercises
  • Toddler Care
  • Traction Application
  • Travel Health Consultation
  • Trichiasis Treatment
  • Urinary Tract Infection (UTI) Treatment
  • Vaccinations
  • Vision Screening
  • Wart Treatment
  • Weight Management Program
  • Wellness Exams
  • Wheelchair Evaluation
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Practice locations

Distance from Change LocationEnter your Location

26840 Point Lookout Rd
Ste 5 & 6
Leonardtown, MD, 20650

301-475-4610

Fax 301-475-4611

Get Directions

miles away

Fax 301-475-4611

4200 Wisconsin Ave NW
Ste 400
Washington, DC, 20016

202-243-3400

Fax 202-243-3434

Get Directions

miles away

Fax 202-243-3434

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

Education

Board Certification: American Board of Pediatrics, General Pediatrics

Residency: MedStar Georgetown University Medical Center (2019)

Residency: MedStar Georgetown University Medical Center (2018)

Medical School: Georgetown University School of Medicine (2015)

Ratings and reviews

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

    5
  • Extent to which the care provider listened to you

    5
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    5
  • Provider included you in decisions

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

    5
  • Likelihood of recommending this care provider to others

    5
  • May 1, 2026

    Again, Dr. Reen is invaluable and we adore her as our children's doctor. She's so kind and understanding, supportive, and thorough. She's the best!

  • Aug 19, 2025

    Dr. Reen was very reassuring and thorough.

  • Jun 20, 2025

    Outstanding provider. Listened and empathized with my child exceptionally well established repoire while giving the best possible up-to-date recommendations. A rare gem of a Health at Every Size provider.