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

Gerald M O'Brien, MD

Individual provider Pulmonary Disease Physician · NPI 1215980313

Gerald M O'Brien, MD is a Pulmonary Disease Physician in Newark, Delaware. Licensed in Delaware. Registered with an NPI since 2006.

Licensed in
DE
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

4745 Ogletown Stanton Rd Ste 220
Newark, DE 19713-2067
Phone: (302) 368-5515
Fax: (302) 366-1240
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence C10006061 (DE)

Record details

NPI number1215980313
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2006
Last updated in NPPESSeptember 2, 2010

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