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

George M Obrien DO PLLC

Organization Geriatric Medicine (Family Medicine) Physician · NPI 1639360944

George M Obrien DO PLLC is a Geriatric Medicine (Family Medicine) Physician in Mesa, Arizona. Licensed in Arizona. Registered with an NPI since 2007.

Licensed in
AZ
In the registry since
2007
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1840 E University Dr #6
Mesa, AZ 85203-8237
Phone: (480) 268-2670
Fax: (480) 268-2671
Show map & directions

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

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence E25929 (AZ)

Record details

NPI number1639360944
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official George O'Brien — Physician · (480) 229-2714
NPI enumeratedAugust 5, 2007
Last updated in NPPESAugust 5, 2013
Mailing address1840 E University Dr, 6, Mesa, AZ 85203-8237

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