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

Dr. James Brien O'Callaghan, PHD

Individual provider Clinical Psychologist · NPI 1689796690

Dr. James Brien O'Callaghan, PHD is a Clinical Psychologist in New Milford, Connecticut. Qualified in 1980, 46 years ago. Accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
46
Licensed in
CT
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

4 Main St
New Milford, CT 06776-2802
Phone: (203) 740-2595
Fax: (203) 740-2287
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 000101 (CT)
Clinical Psychologist Taxonomy 103TC0700X · Licence 000930 (CT)

Record details

NPI number1689796690
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 3, 2007
Last updated in NPPESMarch 25, 2026
Certification dateMarch 25, 2026
Mailing address54 Plumtrees Rd, Bethel, CT 06801-1645

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in New Milford