What is Dennis O'Brien's NPI number?

Dennis O'Brien's National Provider Identifier (NPI) is 1306914221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dennis O'Brien's specialty?

Dennis O'Brien is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Dennis O'Brien located?

Dennis O'Brien's practice location on file with NPPES is 9 Columbine Rd, Milton, MA 02186-1719.

What is Dennis O'Brien's phone number?

The practice phone number listed in the NPPES registry for Dennis O'Brien is (617) 698-5714.

Is Dennis O'Brien's NPI active?

Yes — Dennis O'Brien's NPI (1306914221) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Dennis O'Brien, PSY.D.

NPI 1306914221 · Clinical Psychologist · Milton, MA

Dennis O'Brien, PSY.D. is a Clinical Psychologist provider in Milton, MA (NPI 1306914221).

Provider details

NPI number: 1306914221
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSY.D.
Sex: Male
Sole proprietor: Yes
License: 3223 (MA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 3223 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

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

9 Columbine Rd

Milton, MA 02186-1719

Phone: (617) 698-5714

Street-level locationGet directions

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Mailing address