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

John Ryan Barrett, MD

Individual provider Emergency Medicine Physician · NPI 1578908307

John Ryan Barrett, MD is an Emergency Medicine Physician in Baltimore, Maryland. Licensed in Maryland and Pennsylvania. Registered with an NPI since 2013.

Licensed in
MD, PA
In the registry since
2013
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9000 Franklin Square Dr
Baltimore, MD 21237-3901
Phone: (443) 777-7046
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MT203819 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence D0082455 (MD)

Record details

NPI number1578908307
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 7, 2013
Last updated in NPPESMarch 1, 2017
Mailing addressPo Box 418283, Boston, MA 02241-8283

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