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

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
  • 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.

  • Aug 29, 2025

    Good