MS. TIERNEY CALLAHAN O'BRIEN MA, SSP
NPI 1649187410
Psychologist - School in Milwaukee, WI
About Ms. Tierney Callahan O'brien Ma, Ssp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. TIERNEY CALLAHAN O'BRIEN MA, SSP (NPI 1649187410) is an individual school provider in Milwaukee, Wisconsin, licensed in Wisconsin (3001029046) and active in the NPI registry since August 2026.
NPPES Registry Identity
Specialties & Licenses
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Tierney O'brien's NPI number?
The NPI number for Tierney O'brien is 1649187410. It was assigned to this individual provider in the NPPES registry on August 26, 2026.
Where is Tierney O'brien located?
Tierney O'brien practices at 5000 N 53rd St, Milwaukee, WI 53218. The listed phone number is (414) 393-5400.
What is Tierney O'brien's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in School, with taxonomy code 103TS0200X.
When was this NPI record last updated?
The NPPES record for Tierney O'brien was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.