What is Brian Guelzow's NPI number?

Brian Guelzow's National Provider Identifier (NPI) is 1871996181, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Brian Guelzow's specialty?

Brian Guelzow is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Brian Guelzow located?

Brian Guelzow's practice location on file with NPPES is 243 Fillmore St, San Francisco, CA 94117-3536.

What is Brian Guelzow's phone number?

The practice phone number listed in the NPPES registry for Brian Guelzow is (510) 590-8311.

Is Brian Guelzow's NPI active?

Yes — Brian Guelzow's NPI (1871996181) is active in the NPPES registry as of the last update on 2014-09-30.

IndividualActive

Brian Guelzow, PH.D

NPI 1871996181 · Psychologist · San Francisco, CA

Brian Guelzow, PH.D is a Psychologist provider in San Francisco, CA (NPI 1871996181).

Provider details

NPI number: 1871996181
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D
Sex: Male
Sole proprietor: No

Specialties & taxonomies

PsychologistPrimary103T00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(69/100 index)

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

Registry tenure38% of score
12 yrs in NPPES registry
Profile completeness38% of score
83% 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

243 Fillmore St

San Francisco, CA 94117-3536

Phone: (510) 590-8311

Street-level locationGet directions

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Mailing address