DR. DENNIS O'BRIEN (PSY.D.) – Clinical Psychologist, NPI 1306914221

DR. DENNIS O'BRIEN (PSY.D.) is a healthcare provider. based in Milton, Massachusetts. specializing in Clinical Psychologist. They hold the professional credentials PSY.D.. They hold a License No. 3223 (MA). The NPI Number for DR. DENNIS O'BRIEN (PSY.D.) is 1306914221

Main info

Male
Sole Proprietor
Name
DR. DENNIS O'BRIEN (PSY.D.)
NPI
1306914221
Phone
(617) 698-5714
Address
9 COLUMBINE RD
Enumeration Date
30 November 2006
Last Update Date
8 July 2007
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for DR. DENNIS O'BRIEN (PSY.D.)

  • 9, Columbine Road, Milton, Norfolk County, Massachusetts, 02126, United States

    MILTON, MA 021861719

    Phone: (617) 698-5714

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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Medicare Enrollment & Revalidation

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Medicare Utilization (FFS)

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No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02186)

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Frequently asked questions

How do payers reference DR. DENNIS O'BRIEN (PSY.D.)?
For DR. DENNIS O'BRIEN (PSY.D.), use NPI 1306914221 as the unique 10-digit identifier.
Is DR. DENNIS O'BRIEN (PSY.D.) shown as active in public data?
Registry records indicate DR. DENNIS O'BRIEN (PSY.D.) maintains an active NPI.
What kind of doctor is DR. DENNIS O'BRIEN (PSY.D.)?
DR. DENNIS O'BRIEN (PSY.D.) is associated with Clinical Psychologist in the directory — Clinical services aligned with this taxonomy classification.
Is DR. DENNIS O'BRIEN (PSY.D.) located near Milton?
DR. DENNIS O'BRIEN (PSY.D.) currently maps to Milton, Massachusetts in this extract.
When was this NPI issued?
Enumeration for DR. DENNIS O'BRIEN (PSY.D.) is noted as November 30, 2006 where the registry provides it.

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