Maria O Halloran, PHD
NPI 1477849230 · Psychologist · Darby, PA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria O Halloran, PHD is a Psychologist provider in Darby, PA (NPI 1477849230).
Provider details
- NPI number
- 1477849230
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PS016726 (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
15 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
- 2011-06-21
- Last updated
- 2013-03-13
Frequently asked questions
- What is Maria O Halloran's NPI number?
- Maria O Halloran's National Provider Identifier (NPI) is 1477849230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria O Halloran's specialty?
- Maria O Halloran is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Maria O Halloran located?
- Maria O Halloran's practice location on file with NPPES is 1503 Lansdowne Ave, Darby, PA 19023-1330.
- What is Maria O Halloran's phone number?
- The practice phone number listed in the NPPES registry for Maria O Halloran is (610) 237-5676.
- Does Maria O Halloran accept Medicare?
- Maria O Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria O Halloran's NPI active?
- Yes — Maria O Halloran's NPI (1477849230) is active in the NPPES registry as of the last update on 2013-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.