Summary

Mallory Lostumbo, M.D., is a pediatrician at Johns Hopkins Community Physicians in Rockville. She received her medical degree from SUNY Upstate Medical University in Syracuse, NY and completed her residency at Dartmouth Hitchcock in 2017. She is a fellow of the American Academy of Pediatrics and was named a 2025 Top Doctor by Bethesda Magazine and Washingtonian Magazine.

Dr. Lostumbo’s clinical interests include preventative medicine, adolescent medicine and working with new parents. She lives locally with her husband and enjoys traveling, baking and spending time with friends and family.

Quick Facts

  • accepting new patients
  • 12 years of experience
  • 17 insurance plans accepted
  • speaks English
  • Dartmouth Hitchcock Medical Center
  • 2 specialties
  • 1 area of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Female

Office Location

Johns Hopkins Community Physicians - Rockville

1201 Seven Locks Rd Ste 201Rockville, MD 20854

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Mallory Lyn Lostumbo, MD
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Mallory Lyn Lostumbo, MDDr. Belle Bonita Dalton, MDDr. Andrea Christine LoeffertDr. Patricia Pinaya Walters
PediatricsPediatricsPediatricsPediatrics
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
12 Years of Experience 30 Years of Experience 14 Years of Experience 27 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Spanish, English Speaks English, Spanish Speaks Spanish, English
Rockville , MDFranklin , TNFranklin , TNFranklin , TN
Med School: Suny Upstate Medical University Alan And Marlene Norton Coll Of Med Med School: Medical College of Virginia at Virginia Commonwealth University Med School: Lake Erie College of Osteopathic Medicine - Bradenton, FL campus Med School: Universidad Mayor Real San Francisco Xavier de Chuquisaca
Current Profile
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Insurance Plans Accepted by Mallory Lyn Lostumbo

  • Aetna
  • Aetna - PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Federal Employees Program
  • Blue Cross Blue Shield - PPO
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield - Federal Employees Program
  • CareFirst Blue Cross Blue Shield - PPO
  • CHAMPVA
  • Cigna
  • Johns Hopkins Employer Health Programs
  • Johns Hopkins Employer Health Programs - Medicaid (Managed)
  • Kaiser Permanente - Medicaid (Managed)
  • Meritain Health
  • Tricare
  • UnitedHealthcare
  • US Family Health Plan

Medical Specialties

Mallory Lyn Lostumbo has the following 2 specialties

Specialty Expertise

Mallory Lyn Lostumbo has the following area of expertise

  • Internist/pediatrician

Certifications, License, & Education

12 Years Experience

Mallory Lyn Lostumbo holds an active medical license in the state of Maryland.

Medical License

Medical Doctor with an active medical license in the state of Maryland that expires in 2026.

Education & Training

Residency

Completed their residency at Dartmouth Hitchcock Medical Center.

Medical School

Graduated from Suny Upstate Medical University Alan And Marlene Norton Coll Of Med in 2014.

NPI Number

Mallory Lyn Lostumbo's NPI number is 1073923132.

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Frequently Asked Questions

How can I make an appointment with Mallory Lyn Lostumbo?
You can find contact information for Mallory Lyn Lostumbo here on Vitals.
Does Mallory Lyn Lostumbo accept virtual/telehealth appointments?
Mallory Lyn Lostumbo has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Mallory Lyn Lostumbo's office located?
Mallory Lyn Lostumbo's office is located at 1201 Seven Locks Rd Ste 201, Rockville, MD, 20854.
Which hospitals is Mallory Lyn Lostumbo affiliated with?
Mallory Lyn Lostumbo is affiliated with Dartmouth Hitchcock Medical Center.
What languages does Mallory Lyn Lostumbo speak?
Mallory Lyn Lostumbo speaks English.

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