What is Michael O'Brien's NPI number?

Michael O'Brien's National Provider Identifier (NPI) is 1811070972, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Michael O'Brien's specialty?

Michael O'Brien is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Michael O'Brien located?

Michael O'Brien's practice location on file with NPPES is 32 Water Street, Stonington, CT 06378.

What is Michael O'Brien's phone number?

The practice phone number listed in the NPPES registry for Michael O'Brien is (860) 535-2028.

Is Michael O'Brien's NPI active?

Yes — Michael O'Brien's NPI (1811070972) is active in the NPPES registry as of the last update on 2009-08-13.

IndividualActive

Michael O'Brien, MD

NPI 1811070972 · Psychiatry Physician · Stonington, CT

Michael O'Brien, MD is a Psychiatry Physician provider in Stonington, CT (NPI 1811070972).

Provider details

NPI number: 1811070972
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: 014409 (CT)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 014409 (CT)
Allopathic & Osteopathic Physicians

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

32 Water Street

Stonington, CT 06378

Phone: (860) 535-2028

Fax: (860) 535-9195

Street-level locationGet directions

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Mailing address