Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Margaret Anne Mallari, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1124518519

Margaret Anne Mallari, DO is an Internal Medicine in Baltimore, Maryland. Graduated from Rowan University School of Osteopathic Medicine in 2018, 8 years ago. Practices with Johns Hopkins University, a 705-clinician group and works from 2 locations. Licensed in Maryland.

Years since qualifying
8
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
MD
In the registry since
2018
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Baltimore, MD

Additional practice locations (1)

  • 1925 Pacific Ave, Atlantic City, NJ 08401-6713 — (609) 449-4391

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence H92410 (MD)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1124518519
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 11, 2018
Last updated in NPPESSeptember 8, 2021
Certification dateSeptember 8, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2018 (8 years in practice)
Group practice Johns Hopkins University — 705 clinicians
Accepts Medicare assignment Not indicated
Practice locations7 on file with Medicare

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