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

John C. O'Brien, Jr , MD, PA

Organization Surgical Oncology Physician · NPI 1104191667

John C. O'Brien, Jr , MD, PA provides Surgical Oncology Physician services in Dallas, Texas. Licensed in Texas. Registered with an NPI since 2012.

Licensed in
TX
In the registry since
2012
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

8223 Forest Hills Blvd
Dallas, TX 75218-4410 Not confirmed with CMS for 13 years — call before visiting
Phone: (214) 320-9163
Fax: (214) 320-9163
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence D 6835 (TX)

Record details

NPI number1104191667
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John O'Brien — President · (214) 320-9163
NPI enumeratedMarch 16, 2012
Last updated in NPPESDecember 31, 2012
Mailing address8223 Forest Hills Blvd, Dallas, TX 75218-4410

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