Allison McCormick Greenleaf, MSN NP| Pediatrics | MedStar Health
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Allison McCormick Greenleaf

Allison McCormick Greenleaf, MSN NP
Provider is directly employed by MedStar Health

4.9 out of 5 (48 reviews)

Specialties: Pediatrics

Languages: English

Clinical areas of focus

  • Baby Reflux
  • Colic In Infants
  • Feeding Difficulties In Newborns
  • Feeding Problems In Toddlers
  • Growth And Development Monitoring
  • Newborn Feeding Disorders
  • Premature Birth
  • Premature Infant
  • Reflux In Infants
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Conditions and procedures

Conditions I treat

  • Abnormal Breathing In Newborns
  • Abnormal Findings On Neonatal Screening
  • Acute Bronchiolitis In Infants
  • Baby Acne
  • Baby Reflux
  • Blocked Tear Ducts
  • Blood In Stool
  • Breastfeeding Difficulties
  • Bronchiolitis
  • Colic In Infants
  • Common Cold In Children
  • Constipation
  • Cradle Cap
  • Delayed Speech And Language Development
  • Eczema
  • Feeding Difficulties In Newborns
  • Feeding Problems In Toddlers
  • Language Developmental Delays
  • Medically Complex Child
  • Nasolacrimal Duct Obstruction
  • Newborn Care
  • Newborn Feeding Disorders
  • Oral Thrush
  • Premature Birth
  • Premature Infant
  • Reflux In Infants
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Procedures I perform

  • Acid Reflux Treatment
  • Antibiotic Therapy
  • Child Developmental Assessment
  • Counseling For Feeding Problems
  • Developmental Assessments
  • Developmental Follow-Up
  • Growth And Development Monitoring
  • Growth Development Screening
  • Infant Nutrition Counseling
  • Newborn Care
  • Telemedicine Treatment
  • Telemedicine Visit
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Practice locations

Distance from Change Location Enter your Location

3800 Reservoir Rd NW
Main Bldg 3rd Fl Rm 3400
Washington, DC, 20007

202-444-8569
Get Directions

miles away

Fax 202-444-4747

4200 Wisconsin Ave NW
Washington, DC, 20016

202-243-3425
Get Directions

miles away

Fax 202-243-3434

110 Irving St NW
1st Fl
Washington, DC, 20010

202-877-3791
Get Directions

miles away

Fax 877-245-1499

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Education

Board Certification: Pediatric Nursing Certification Board, Neonatology

Graduate: The Catholic University Of America (2004)

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
  • Jul 4, 2026

    Very efficient visit

  • Feb 5, 2026

    We love Allison! She always takes time with us to answer and discuss our questions.

  • Aug 28, 2025

    Allison is the best!