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

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1750168951

Dia O'Brien, APRN is a Nurse Practitioner in New Haven, Connecticut. Qualified in 2023, 3 years ago. Practices with State of Connecticut, a 267-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
3
Licensed in
CT
In the registry since
2023
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

34 Park St
New Haven, CT 06519-1109
Phone: (203) 974-7560
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 12121 (CT)

Record details

NPI number1750168951
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedSeptember 11, 2023
Last updated in NPPESSeptember 11, 2023
Certification dateSeptember 11, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice State Of Connecticut — 267 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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