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

MS. Maureen L O'Brien, PA

Individual provider Physician Assistant · NPI 1740275148

MS. Maureen L O'Brien, PA is a Physician Assistant in Annapolis, Maryland. Licensed in Maryland. Registered with an NPI since 2005.

Licensed in
MD
In the registry since
2005
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

2000 Medical Pkwy Ste 200
Annapolis, MD 21401-3744
Phone: (443) 481-5300
Fax: (443) 481-6705
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence C02505 (MD)
Physician Assistant Taxonomy 363A00000X · Licence C0002505 (MD)

Record details

NPI number1740275148
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedSeptember 13, 2005
Last updated in NPPESJanuary 15, 2013

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