Marci Beth Chasnow, MD| Pediatrics | MedStar Health
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Marci Beth Chasnow

Marci Beth Chasnow, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (318 reviews)

Specialties: Pediatrics

Languages: English, Spanish

About me

Philosophy of Care:
“My relationship with a child and his or her family is a partnership. We are a team with the goal of achieving the best health and well being possible for the child.”

Areas of Clinical Interest
• General Pediatrics
• Adoption
• Supporting American Academy
of Pediatrics Recommended
Vaccine Schedule for Infants
and Children

Clinical areas of focus

  • Asthma
  • Attention Deficit Hyperactivity Disorder (ADHD) Evaluation And Treatment
  • Autism Spectrum Disorder
  • Camp Physicals
  • Feeding Difficulties In Newborns
  • Feeding Problems In Toddlers
  • Growth And Development Monitoring
  • Immunization Administration
  • Lactation Counseling
  • Musculoskeletal Injury
  • Nutrition Counseling
  • Pediatric Sick Visit
  • School Physical
  • School Physical
  • Sports Physicals
  • Well Child Exam
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Conditions and procedures

Conditions I treat

  • Abdominal Pain
  • Abnormal Breathing
  • Abnormal Breathing In Newborns
  • Abnormal Findings On Neonatal Screening
  • Acute Bronchiolitis In Infants
  • Acute Sinusitis
  • Acute Tonsillitis In Children
  • Acute Upper Respiratory Infections Of Multiple Sites
  • Allergic Contact Dermatitis
  • Allergic Reactions In Children
  • Allergic Rhinitis
  • Allergies
  • Anemia In Children
  • Arm Injury
  • Arm Pain In Children
  • Asthma
  • Asthma Attack
  • Asthma In Children
  • Asthma Management
  • Atopic Dermatitis (ECZEMA) In Children
  • Autism Spectrum Disorder
  • Baby Acne
  • Baby Reflux
  • Bacterial Pneumonia
  • Bedwetting
  • Behavioral Problems
  • Blocked Tear Ducts
  • Blood In Stool
  • Bone Disorders In Children
  • Breastfeeding Difficulties
  • Bronchiolitis
  • Burn Injuries
  • Candidiasis
  • Cellulitis
  • Chest Pain
  • Child Anxiety Disorders
  • Child Asthma
  • Child Constipation
  • Child Speech Problems
  • Child Tantrums
  • Cold And Flu In Children
  • Colic In Infants
  • Common Cold In Children
  • Constipation
  • Cradle Cap
  • Croup
  • Delayed Speech And Language Development
  • Developmental Delays In Toddlers
  • Ear Foreign Body
  • Ear Infections In Children
  • Ear Pain In Children
  • Eczema
  • Enuresis
  • Environmental Allergies
  • Eye Problems In Children
  • Feeding Difficulties In Newborns
  • Feeding Problems In Toddlers
  • Fever In Children
  • Flu In Children
  • Gastroenteritis
  • Gastroesophageal Reflux Disease (GERD) In Children
  • Growing Pains
  • Hand Foot And Mouth Disease
  • Head Injury
  • Head Lice
  • Headache In Children
  • Health Counseling
  • Hives
  • Impetigo In Children
  • Infection
  • Infectious Mononucleosis
  • Influenza
  • Intellectual Disabilities
  • Knee Pain In Children
  • Language Developmental Delays
  • Lead Poisoning In Children
  • Learning Disabilities In Children
  • Leg Pain In Children
  • Medically Complex Child
  • Middle Ear Pain
  • Musculoskeletal Injury
  • Nasal Congestion
  • Nasolacrimal Duct Obstruction
  • Nausea And Vomiting In Kids
  • Newborn Care
  • Newborn Feeding Disorders
  • Nightmares In Children
  • Nonsuppurative Otitis Media
  • Nursemaid's Elbow
  • Nutrition Counseling
  • Obesity In Children
  • Oral Thrush
  • Otitis Externa (SWIMMER'S EAR)
  • Otitis Media
  • Overweight Children
  • Pediatric Allergies
  • Pediatric Anemia
  • Pediatric Sinusitis
  • Pediatric Skin Conditions (E.G. ECZEMA, ACNE)
  • Pink Eye (CONJUNCTIVITIS)
  • Pinworms
  • Pneumonia In Children
  • Poor Appetite In Children
  • Premature Birth
  • Premature Infant
  • Reflux In Infants
  • Roseola
  • Rubella
  • Runny Nose
  • Scabies In Children
  • Scarlet Fever
  • School Physical
  • Sinusitis In Children
  • Skin And Soft Tissue Infections
  • Skin Infections In Children
  • Skin Rashes In Children
  • Speech Disorders
  • Sprains And Strains In Children
  • Strep Throat
  • Swimmer's Ear
  • Testicular Pain
  • Throat Pain
  • Tinea Infections
  • Underimmunization
  • Underweight In Kids
  • Unexplained Fever
  • Urinary Tract Infection (UTI)
  • Urticaria
  • Vaccination Concerns
  • Vaccinations For Children
  • Vaginitis
  • Viral Exanthem In Children
  • Viral Infection
  • Vision Problems In Children
  • Vomiting In Children
  • Well Child Exam
  • Whooping Cough (PERTUSSIS)
  • Wound Infections In Children
  • Wrist And Hand Pain
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Procedures I perform

  • Acid Reflux Treatment
  • Annual Well Child Exam
  • Antibiotic Therapy
  • Anxiety Disorder Screening
  • Anxiety Management
  • Asthma Action Plan
  • Asthma Attack Treatment
  • Asthma Medication Management
  • Attention Deficit Hyperactivity Disorder (ADHD) Evaluation And Treatment
  • Autism Screening And Diagnosis
  • Breastfeeding Assistance
  • Camp Physicals
  • Child Development Guidance
  • Child Developmental Assessment
  • Cholesterol Screening
  • Conjunctivitis Treatment
  • Constipation Education
  • Counseling For Anxiety And Depression
  • Counseling For Autism Spectrum Disorder
  • Counseling For Behavioral Issues
  • Counseling For Children
  • Counseling For Chronic Illness
  • Counseling For Developmental Disorders
  • Counseling For Down Syndrome
  • Counseling For Feeding Problems
  • Counseling For Intellectual Disabilities
  • Daycare Physical
  • Developmental Assessments
  • Developmental Delay Diagnosis
  • Developmental Follow-Up
  • Dietary Counseling
  • Growth And Development Monitoring
  • Growth Development Screening
  • Healthy Lifestyle Guidance
  • Immunization Administration
  • Infant Nutrition Counseling
  • Infection Treatment
  • Injury Prevention
  • Lactation Counseling
  • Newborn Care
  • Nutrition And Diet Counseling
  • Pediatric Asthma Management
  • Pediatric Asthma Screening
  • Pediatric Autism Screening
  • Pediatric Nutrition Counseling
  • Pediatric Sick Visit
  • Pediatric Well Visit
  • Physical Activity Counseling
  • Physical Exam For School
  • Safety And Injury Prevention Counseling
  • School Physical
  • Sleep Counseling
  • Sports Physicals
  • Telemedicine Treatment
  • Telemedicine Visit
  • Vaccinations
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Practice locations

Distance from Change Location Enter your Location

12 MedStar Blvd
Ste 265
Bel Air, MD, 21015

410-877-2080
Get Directions

miles away

Fax 410-877-2079

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

Videos

Education

Board Certification: American Board of Pediatrics, Pediatrics

Residency Program: University of Maryland Medical Center (1986)

Internship Program: University of Maryland Medical Center (1984)

Medical School: Boston University School of Medicine (1983)

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
  • Apr 22, 2026

    Good

  • Feb 19, 2026

    Dr. Chasnow is the best doctor we have ever visited. She listens, she cares and treats us as family.

  • Oct 14, 2025

    We love Dr.Chasnow and trust her intelligence and experience. She never makes us feel like she's too busy to give us her full attention.