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 (316 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 LocationEnter your Location

12 MedStar Blvd
Ste 265
Bel Air, MD, 21015

410-877-2080

Fax 410-877-2079

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

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.