What is Floyd O'Brien's NPI number?

Floyd O'Brien's National Provider Identifier (NPI) is 1720021975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Floyd O'Brien's specialty?

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

Where is Floyd O'Brien located?

Floyd O'Brien's practice location on file with NPPES is 33 W Alder St, Stockton, CA 95204-5701.

What is Floyd O'Brien's phone number?

The practice phone number listed in the NPPES registry for Floyd O'Brien is (209) 466-9159.

Is Floyd O'Brien's NPI active?

Yes — Floyd O'Brien's NPI (1720021975) is active in the NPPES registry as of the last update on 2013-02-07.

IndividualActive

Floyd O'Brien, PH.D.

NPI 1720021975 · Psychologist · Stockton, CA

Floyd O'Brien, PH.D. is a Psychologist provider in Stockton, CA (NPI 1720021975).

Provider details

NPI number: 1720021975
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: PSY6749 (CA)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense PSY6749 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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

33 W Alder St

Stockton, CA 95204-5701

Phone: (209) 466-9159

Street-level locationGet directions

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Mailing address