Gerald O'Brien, PH.D.
NPI 1164439808 · Clinical Psychologist · Bala Cynwyd, PA
Gerald O'Brien, PH.D. is a Clinical Psychologist provider in Bala Cynwyd, PA (NPI 1164439808).
Provider details
- NPI number
- 1164439808
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PS004240L (PA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2009-12-04
Frequently asked questions
- What is Gerald O'Brien's NPI number?
- Gerald O'Brien's National Provider Identifier (NPI) is 1164439808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald O'Brien's specialty?
- Gerald O'Brien is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gerald O'Brien located?
- Gerald O'Brien's practice location on file with NPPES is 112 Bala Ave, Bala Cynwyd, PA 19004-3025.
- What is Gerald O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Gerald O'Brien is (610) 667-6490.
- Is Gerald O'Brien's NPI active?
- Yes — Gerald O'Brien's NPI (1164439808) is active in the NPPES registry as of the last update on 2009-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.